Categories from ABB (48)

Molded case circuit breakers (MCCBs) protect higher-current circuits, typically 15 to 2,500 amps, in panelboards, switchboards and equipment.

MCCB Features

Thermal-magnetic trip units – standard protection
Electronic trip units – adjustable settings
High interrupting ratings – high fault currents
Accessories – shunt trips, auxiliaries and handles

Choosing an MCCB

Select frame size, current rating, interrupting rating and trip unit. Confirm lug sizes and mounting.

Centro supplies molded case circuit breakers.

Circuit Breakers

Circuit breakers protect circuits from overloads and short circuits, and you can reset them after a trip. They're the main overcurrent protection in control panels, switchboards and distribution equipment.

Breaker Types

Miniature circuit breakers (MCBs) – DIN rail control circuit protection
Molded case circuit breakers (MCCBs) – higher currents
Supplementary protectors – equipment protection
Motor circuit protectors – motor branch circuits
Ground-fault breakers – personnel protection

Choosing a Breaker

Select current rating, voltage, poles, trip curve and interrupting rating. Confirm UL listing for your application, whether branch circuit (UL 489) or supplementary (UL 1077).

Centro carries circuit breakers and accessories.

Contactors

Contactors are electrically operated switches for motors, heaters, lighting and power loads. Paired with overload relays, they form motor starters.

Contactor Types

IEC contactors – compact, application-rated
NEMA contactors – robust and size-rated
Definite purpose contactors – HVAC equipment
Reversing assemblies – forward/reverse control
Accessories – auxiliary contacts, suppressors and timers

Choosing a Contactor

Size to motor horsepower or load current, utilization category and coil voltage. For frequent switching, check electrical life. Use suppressors on PLC-driven coils.

Centro carries contactors and accessories for motor control.

Related categories: Motor Control | Control Relays | Manual Starters | Soft Starters | DC Drives

Push Buttons

Push buttons are the most direct way an operator talks to a machine. Start, stop, jog, reset and emergency stop functions all depend on a button that feels right, is clearly marked and holds up to thousands of presses in tough conditions.

Push Button Options

Momentary and maintained buttons for start/stop and on/off functions
Illuminated push buttons with LED indication of machine status
Emergency stop mushroom heads with twist or key release
Selector switches and key switches for mode selection and lockout
Push button stations and enclosures for remote and pendant control
Contact blocks, legend plates and guards to complete the assembly

Choosing the Right Button

Start with the mounting size (22 mm and 30 mm are the most common), then choose the operator type, color and contact arrangement. For outdoor, washdown or oily environments, check the NEMA or IP rating. Use red only for stop and emergency functions, and green or black for start, to follow common safety practice.

Centro carries push buttons and accessories from leading control brands, so you can match existing panels or build new ones with parts that work together.

Transformers

Power supply transformers step line voltage down to the levels needed by control circuits, power supplies and equipment. They also provide isolation for safer, quieter operation.

Transformer Options

Control transformers – machine control circuits
Step-down transformers – equipment power
Isolation transformers – noise reduction
DIN rail transformers – compact panel mounting
Fused transformers – built-in protection

Choosing a Transformer

Select primary and secondary voltages and VA rating with margin for inrush. Confirm mounting style and overcurrent protection.

Centro supplies transformers for control panels and power supplies.

Contactor Accessories

Contactor accessories extend contactor functions without replacing the contactor. Auxiliary contacts, suppressors, timers and interlocks fit directly to the contactor.

Accessories Available

Auxiliary contact blocks – status and interlocking
Surge suppressors – protect control outputs
Timer modules – delayed switching
Mechanical interlocks – reversing and transfer
Overload relays – direct-mount protection

Choosing Accessories

Accessories are series-specific, so start with your contactor model. Use suppressors on coils driven by PLC outputs.

Centro supplies contactor accessories for leading brands.

Disconnect Switches

Disconnect switches isolate equipment from power so maintenance can be done safely. They're required by code for motors and machines, and support lockout/tagout procedures.

Disconnect Types

Fusible disconnects – isolation with fuse protection
Non-fusible disconnects – isolation only
Rotary disconnects – panel-mount with door handles
Enclosed safety switches – NEMA 1, 3R, 4X and 12
Accessories – handles, shafts and auxiliary contacts

Choosing a Disconnect

Select by voltage, amperage, horsepower rating, poles and enclosure. Confirm short-circuit ratings and code requirements.

Centro supplies disconnect switches and accessories.

Disconnect Accessories

Disconnect accessories complete a disconnect switch installation, providing safe handle operation through panel doors, lockout capability and status feedback.

Accessories Available

Door-mounted handles – operate the switch without opening the enclosure
Extension shafts – connect the handle to the switch body
Auxiliary contacts – signal switch position to controls
Padlock attachments – lockout/tagout compliance
Fuse kits and terminal shrouds – fusible conversions and finger safety

Ordering Tips

Start with the disconnect switch model and amperage. Measure the enclosure depth to choose the right shaft length. Handle color matters: red and yellow handles are typically used for emergency or main disconnects.

Centro can confirm the right handles, shafts and contacts for your disconnect switches.

Control Relays

Control relays are electrical devices that control and switch electrical circuits in industrial automation and control systems. These relays act as electromechanical switches, allowing a low-power control signal to control a higher-power circuit. Control relays are commonly used to control motors, solenoids, lights, and other electrical loads. They provide reliable and efficient control by isolating the control circuit from the higher-voltage or higher-current circuits. Control relays are available in various configurations, such as electromechanical and solid-state relays, offering different features and capabilities. They play a crucial role in automating processes, ensuring proper sequencing, and enhancing the safety and reliability of control systems.

Related categories: Motor Control | Soft Starters | Contactors | Motor Control Parts | Manual Starters

Lighting Contactors

Lighting contactors switch large lighting loads in buildings, parking lots, warehouses and stadiums. They're rated for the inrush current of lighting ballasts and LED drivers.

Lighting Contactor Types

Electrically held contactors – simple control
Mechanically held contactors – quiet and energy-efficient
Multi-pole designs – switch many circuits
Enclosed contactors – standalone mounting

Choosing a Contactor

Select by load current, poles, coil voltage and holding method. Mechanically held contactors save energy and stay put through power interruptions.

Centro supplies lighting contactors for commercial and industrial facilities.

Circuit Protection Accessories

Circuit protection accessories complete breaker, fuse and disconnect installations, adding safety, signaling and flexibility.

Accessories Available

Auxiliary and alarm contacts – status signals
Shunt trips and undervoltage releases – remote tripping
Lockout devices – safe maintenance
Busbars and terminals – efficient wiring
Covers and shrouds – finger safety

Choosing Accessories

Accessories are series-specific, so confirm the device part number before ordering.

Centro supplies circuit protection accessories.

Control Transformers

Control transformers supply stable, isolated low voltage, usually 120V or 24V, to control circuits in machines and panels. They handle the inrush current of contactors, relays and solenoids.

Features

Multiple primary taps – flexible input voltages
High inrush capacity – reliable coil switching
Fuse block options – built-in protection
Finger-safe terminals – safer wiring

Choosing a Transformer

Size VA by adding sealed and inrush loads of connected devices, then confirm primary and secondary voltages. Follow NEC overcurrent requirements.

Centro supplies control transformers for industrial panels.

Indicator Lights

Indicator lights show machine status, alarms and power at a glance. Clear indication helps operators respond quickly and safely.

Indicator Light Options

LED pilot lights – long life and low power
22 mm and 30 mm sizes – match panel layouts
Multiple colors – red, green, amber, blue and white
Push-to-test lights – verify lamp function
Tower lights – stacked machine status

Choosing Lights

Match voltage, size and color to your panel. Follow color conventions so status is easy to read.

Centro supplies indicator lights for control panels.

Motor Starters

Motor starters are for safely starting and stopping electric motors, particularly in industrial and commercial industry. They regulate the power sent to the motor, ensuring it ramps up to full speed without drawing too much current. This prevents potential damage to the motor and other electrical components. Motor starters come with built-in overload protection, adding an extra layer of safety by automatically shutting down the motor if it overheats or experiences a fault. Easy to install and operate, these devices are crucial for maintaining the longevity and reliability of your motor-driven equipment. Explore our range of motor starters below or contact us to speak with a product expert.

Safety Switches

Safety switches are essential components within industrial safety systems, designed to prevent accidents and protect workers and equipment. These switches provide a reliable means of instantly interrupting power or triggering safety functions in response to hazardous conditions. Available in various configurations like limit switches, interlock switches, and emergency stop switches, they cater to a wide range of applications. Safety switches serve as critical control points, ensuring machinery halts promptly during emergencies or when unsafe conditions arise. Safety switches play a pivotal role in safeguarding workplaces and adhering to safety standards by offering fail-safe operation and compatibility with diverse environments. Their integration enhances operational safety, minimizes risks, and fosters secure industrial environments.

Safety Accessories

Safety accessories are crucial elements within industrial safety systems, enhancing the effectiveness of safety equipment and processes. These accessories include mounting brackets, enclosures, indicator lights, and reset keys. Safety accessories are designed to complement safety devices like switches, sensors, and controllers ensure proper installation, visibility, and ease of use. They support creating a comprehensive safety ecosystem that aligns with industry regulations and standards. By simplifying maintenance, improving visibility, and facilitating quick response actions, safety accessories contribute significantly to overall safety. Their integration elevates safety measures, minimizes risks, and fosters a secure industrial environment that prioritizes worker protection and equipment integrity.

Control Accessories

Control accessories complete push buttons, selector switches and pilot devices on control panels. Contact blocks, legend plates, guards and enclosures let you configure operator controls for each machine.

Accessories Available

Contact blocks – normally open and normally closed
Legend plates – clear function labeling
Protective guards and boots – prevent accidental operation
Push button enclosures – remote and pendant stations
LED lamp modules – illuminated devices

Choosing Accessories

Accessories are series-specific, so match them to your operator brand and size (22 mm or 30 mm). Use standardized colors and legends for safety.

Centro supplies control accessories for operator devices.

Miniature Contactors

Miniature contactors switch small motors, heaters and control loads in compact panels. They save space while giving reliable switching.

Features

Compact footprint – save panel space
AC and DC coils – direct PLC control options
Integrated auxiliary contacts – status signals
Accessories – suppressors and overload relays

Choosing a Contactor

Size by load current and utilization category, and select coil voltage. Use suppressors with PLC outputs.

Centro supplies miniature contactors and accessories.

Mechanical Switches

Mechanical switches control circuits through physical actuation, such as limit switches, toggle switches, foot switches and safety switches. They're simple, reliable and used across machinery and controls.

Switch Types

Limit switches – detect machine position
Foot switches – hands-free operation
Toggle and rocker switches – manual control
Safety interlock switches – guard doors
Micro switches – compact sensing

Choosing a Switch

Select actuator type, contact rating and environmental protection. Safety switches must meet relevant standards.

Centro supplies mechanical switches for machines and panels.

Overload Relays

An overload relay protects a motor from burning out when it draws too much current for too long because of a jammed load, a lost phase or a failing bearing. Paired with a contactor, it forms a motor starter that trips before heat damages the windings.

Overload Relay Types

Thermal (bimetallic) overload relays – simple, proven protection for standard motors
Electronic overload relays – wide adjustment ranges, phase-loss detection and tighter accuracy
Solid-state relays with communication – motor diagnostics over industrial networks
Class 10, 20 and 30 trip curves – matched to standard and high-inertia starting loads
Accessories – reset buttons, mounting adapters and auxiliary contacts

Sizing an Overload

Set the overload to the motor's full-load amps from its nameplate and select a trip class that allows normal starting time. Make sure the relay is compatible with your contactor brand and frame size. Electronic relays are a good upgrade when motors run in hot panels or need ground-fault and phase-imbalance protection.

Centro carries overload relays that pair with popular IEC and NEMA contactors, and our team can help you select the right overload for your motor and contactor.

Soft Starters

Soft starters gradually ramp up motor voltage to reduce inrush current and mechanical stress. They cut belt slip, water hammer and wear on gearboxes and couplings.

Soft Starter Features

Adjustable ramp times – smooth acceleration
Soft stop – reduce water hammer in pumps
Built-in bypass – lower heat during running
Motor protection – overload and phase loss
Communication options – network integration

Soft Starter vs VFD

Soft starters are a cost-effective choice when you need gentle starts but not speed control. If you need variable speed or energy savings, consider a VFD.

Centro supplies soft starters for pumps, fans, conveyors and compressors.

Related categories: Motor Control | Motor Control Parts | Control Relays | Drive Communication | Contactors

Pull Cords and Emergency Stops

Pull cords and emergency stops are critical components in industrial safety, providing direct and immediate means to halt machinery and prevent accidents. Pull cords are strategically placed along equipment or conveyors, allowing workers to quickly trigger a shutdown in emergencies. Emergency stops, often in the form of large buttons or switches, offer an instant way to halt operations if unsafe conditions arise. These safety mechanisms are designed for intuitive and rapid use, ensuring workers can react promptly to potential hazards. Pull cords and emergency stops are essential in creating a safe work environment, empowering workers to take control and prevent accidents. Their integration enhances workplace safety, reduces risks, and underscores the commitment to worker well-being and equipment protection.

Manual Starters

Manual motor starters start, stop and protect small motors without a contactor. They're compact and simple, and they combine switching with overload protection.

Manual Starter Types

Motor protection switches – adjustable overload and short-circuit protection
Toggle and push button starters – fractional horsepower motors
Enclosed manual starters – standalone mounting
Accessories – auxiliary contacts and lockable handles

Choosing a Starter

Set the overload range to the motor's full-load amps and check the short-circuit rating. Use enclosed versions for machine-side mounting.

Centro supplies manual motor starters for small motor control.

Related categories: Motor Control | Contactors | DC Drives | Control Relays | Configured Drives / Control Systems

Control Contactors

Control contactors switch power to motors, heaters, lighting and other loads on command from a control circuit. They're a core part of industrial control panels, letting low-voltage signals from PLCs and pushbuttons safely switch high-current loads.

Contactor Types

IEC contactors – compact, application-rated designs
NEMA contactors – size-rated for robust industrial use
Definite purpose contactors – HVAC and refrigeration equipment
Reversing contactors – forward/reverse motor control
Accessories – auxiliary contacts, suppressors and overloads

Choosing a Contactor

Size to the load's current and utilization category, such as AC-3 for motors, along with voltage, coil voltage and the number of poles. For frequent switching, check the electrical life rating. Pair with an overload relay to build a motor starter.

Centro carries control contactors and accessories from leading electrical brands.

Motor Control Parts

Motor control parts keep starters, drives and control panels running. Replacement coils, contacts, overload heaters and accessories restore equipment quickly and cut downtime.

Parts Available

Replacement coils – contactor and starter coils
Contact kits – restore worn contacts
Overload heaters and relays – motor protection
Auxiliary contacts – add control functions
Drive fans and parts – drive maintenance

Ordering Parts

Have the manufacturer, model and series of your equipment ready. Some older equipment may need cross-reference or retrofit options.

Centro supplies motor control parts and cross-references.

Related categories: Motor Control | Drive Communication | Soft Starters | Contactor Accessories | Control Relays

Circuit Monitoring

Circuit monitoring devices measure current, voltage, power and energy use in electrical systems. They help you manage loads, find problems and cut energy costs.

Monitoring Products

Power meters – energy and power quality
Current sensors and transducers – load monitoring
Monitoring relays – phase loss and voltage faults
Ground fault monitors – insulation monitoring

Choosing a Solution

Define what to monitor, accuracy needed and communication options. Networked meters feed energy management systems.

Centro supplies circuit monitoring products.

Light Curtain

Light curtains are advanced safety devices that provide a protective shield for workers and equipment in industrial settings. Composed of an array of light beams, light curtains act as an invisible barrier, instantly detecting any intrusion or obstruction within their field. In situations where human-machine interaction is common, such as manufacturing and material handling, light curtains are crucial in preventing accidents and ensuring operator safety. These devices are designed to stop machinery or trigger alarms when they detect any breach in their protective zone. Light curtains are essential in creating safer work environments, reducing accidents, and increasing productivity by maintaining a harmonious balance between human workers and automated equipment.

Standard Enclosures

Standard electrical enclosures are essential components used to house and protect electrical equipment, controls, and wiring. These enclosures provide a safe and secure environment, shielding sensitive electrical components from environmental factors, such as dust, moisture, and physical damage. Standard electrical enclosures are typically made of durable materials, such as steel or aluminum, and feature a sturdy construction with proper sealing to ensure reliable protection. They come in various sizes, configurations, and mounting options to accommodate different equipment and installation requirements. Standard electrical enclosures are crucial in maintaining the integrity and longevity of electrical systems, ensuring safety and efficient operation in industrial, commercial, and residential applications.

Related categories: Enclosures | Custom Enclosures

Circuit Breaker Accessories

Circuit breaker accessories add functions to breakers, including remote tripping, status feedback, interlocking and lockout, without replacing the breaker itself.

Accessories Available

Shunt trips – trip a breaker remotely from an emergency stop or alarm
Undervoltage releases – trip when supply voltage drops
Auxiliary and alarm contacts – report breaker status
Handle operators and locks – door-mounted and lockout/tagout devices
Terminal lugs and covers – secure, finger-safe connections

Selecting Accessories

Accessories are specific to the breaker frame and series, so confirm the breaker part number first. Check whether the accessory installs in the field or must be factory installed, and verify the coil voltage for shunt trips and undervoltage releases.

Centro can identify compatible accessories for the breakers already in your panels.

Safety Controllers and Relays

Safety controllers and relays are crucial pillars in industrial safety, offering advanced risk mitigation and equipment protection solutions. These specialized components are meticulously designed to monitor and manage safety-related processes, ensuring compliance with industry standards and regulations. Safety controllers oversee complex safety functions, while safety relays serve as trusted interfaces between safety devices and control systems. These controllers and relays contribute significantly to accident prevention and worker protection by swiftly detecting unsafe conditions and initiating appropriate responses. Their integration into safety-critical systems provides the foundation for safe operations across industries. With a focus on reliability, precision, and adherence to safety norms, safety controllers and relays create secure and productive environments, elevating workplace safety to new heights.

Fuse Blocks and Holders

Fuse blocks and holders mount fuses securely and safely in panels and equipment. Finger-safe designs and indicators make maintenance safer and quicker.

Fuse Block Types

DIN rail fuse holders – compact control panel mounting
Panel-mount fuse blocks – power distribution
Finger-safe holders – reduce shock hazards
Indicating holders – show blown fuses
Inline holders – wire-mounted protection

Choosing a Holder

Match fuse class, size, amperage, voltage and number of poles. Check UL ratings and wire range. Indicating holders cut troubleshooting time.

Centro supplies fuse blocks and holders for control panels.

Related categories: Circuit Protection | Disconnect Switches | Fuses | Circuit Monitoring | Circuit Breakers

Transformer Accessories

Electrical transformer accessories make transformer installations safer, neater and easier to service. Mounting brackets, weather shields, terminal kits and fuse blocks adapt transformers to your panel or site conditions.

Accessories Available

Wall and floor mounting brackets – secure installation
Weather shields and drip hoods – outdoor protection
Lug and terminal kits – correct conductor termination
Fuse blocks and fuses – overcurrent protection
Vibration isolation pads – reduce transformer hum and noise

Choosing Accessories

Check compatibility with the transformer's frame size and manufacturer. Outdoor installations need NEMA 3R weather shields, and noise-sensitive spaces benefit from isolation pads. Follow NEC requirements for primary and secondary protection.

Centro can match transformer accessories to your transformer model and installation needs.

Safety Control Devices

Safety control devices protect workers from hazardous machine motion. Safety relays, controllers, light curtains, interlocks and emergency stops are the building blocks of functional safety systems that meet OSHA and ISO 13849 requirements.

Safety Control Products

Safety relays – monitor E-stops, doors and light curtains
Programmable safety controllers – flexible logic for complex machines
Safety light curtains and scanners – detect people entering hazard zones
Interlock switches – guard doors and access points
Emergency stop devices – push buttons and pull cords

Designing a Safety System

Begin with a risk assessment to determine the required performance level (PL) or safety integrity level (SIL). Select certified devices and wire them for the necessary category. Validate and document the system after installation.

Centro supplies safety control devices and can help you plan safeguarding for your machines.

Circuit Breaker Enclosures

Circuit breaker enclosures house breakers for standalone protection of equipment and circuits. They protect breakers from the environment and people from live parts.

Enclosure Options

NEMA 1 – indoor general purpose
NEMA 3R – outdoor rainproof
NEMA 4/4X – washdown and corrosive
NEMA 12 – dust and drip resistant
Lockable covers – lockout/tagout

Choosing an Enclosure

Match the enclosure to breaker frame size and environment. Confirm the enclosure is listed for your breaker.

Centro supplies circuit breaker enclosures.

Universal Motor Controller

Universal motor controllers combine starting, protection and control in one adaptable device, simplifying motor control for many applications.

Features

Integrated protection – overload, phase loss and jam
Flexible configuration – direct, reversing and star-delta
Network communication – diagnostics and control
Compact design – save panel space

Choosing a Controller

Match current range, voltage and control functions. Networked models reduce wiring and provide motor data.

Centro supplies universal motor controllers.

Standard Power Supplies

Standard power supplies provide regulated DC power for controls, sensors, PLCs and electronics. Reliable power prevents nuisance faults and downtime.

Power Supply Options

DIN rail power supplies – compact panel mounting
Enclosed power supplies – OEM equipment
Transformers – AC control power
Accessories – fuses and mounting

Choosing a Power Supply

Size for total load with margin, and consider input voltage, temperature and redundancy.

Centro supplies standard power supplies.

Pump Starter Panels

Pump starter panels control and protect pumps in water, wastewater, irrigation and industrial systems. A good panel handles starting, stopping, level or pressure control and alarms, and protects the motor from overloads and faults.

Panel Options

Simplex and duplex panels – single pumps or alternating pump pairs
Across-the-line starters – simple and economical
Soft starter and VFD panels – reduce water hammer and save energy
Float and transducer control – level-based pump operation
NEMA 4X enclosures – for outdoor and wet locations

What to Specify

Provide the pump motor horsepower, voltage and phase, the number of pumps, the control method and alarm requirements. Include options such as run-time meters, seal-fail monitoring and remote communication. UL 508A panels make inspection approval easier.

Centro can help you specify pump starter panels for your pumping system.

Electrical Accessories

Electrical accessories cover the many small components that finish control panels and electrical installations, including terminal blocks, wire duct, DIN rail, grommets and mounting hardware.

Accessories Available

Terminal blocks and jumpers – organized wiring
Wire duct and DIN rail – panel layout
Cable glands and grommets – secure cable entry
Ferrules and lugs – reliable terminations
Panel hardware – mounting and grounding

Building Better Panels

Quality accessories make panels easier to build, inspect and maintain. Standardize on product families for consistency.

Centro supplies electrical accessories for panel builders.

Electrical Control

Electrical controls switch and signal the operation of motors, lighting and machines. Contactors, relays and indicator lights form the backbone of control panels.

Electrical Control Products

Control and lighting contactors – switch loads
General purpose and timing relays – logic and delays
Miniature contactors and accessories – compact control
Indicator lights – status and alarm display
Control accessories – contact blocks and legend plates

Choosing Controls

Match voltage, load ratings and coil voltage. Standardizing on one product family simplifies spares and design.

Centro supplies electrical controls for panel builders and maintenance teams.

Miniature Contactor Accessories

Miniature contactors save panel space in control circuits, small motor starters and HVAC equipment. Accessories add functions to these compact contactors without moving up to a larger frame, making it easy to add signaling, interlocking or surge protection where you need it.

Common Accessories

Auxiliary contact blocks – front or side-mount contacts for status and interlocking
Surge suppressors – RC, varistor and diode modules that protect control electronics
Mechanical interlocks – for reversing and transfer applications
Overload relays – sized to mount directly to miniature contactors
Marking tags and covers – for clear identification and finger-safe wiring

Choosing Accessories

Accessories are usually brand- and series-specific, so start with the contactor model number. Check how many auxiliary contacts the contactor will accept and whether they mount on the front or side. For coils switched by PLC outputs, adding a suppressor extends output life and reduces electrical noise.

Centro can match accessories to the miniature contactors already in your panels. Send us the part number and we'll confirm compatibility.

Encoders

Encoders convert rotary or linear motion into electrical signals that report position, speed and direction. They give the feedback that motors, conveyors, cut-to-length lines and positioning systems need for accurate control.

Encoder Types

Incremental encoders – speed and relative position
Absolute encoders – keep position through power loss
Hollow and solid shaft encoders – suit mounting needs
Measuring wheel encoders – length measurement on conveyors
Draw wire encoders – long linear distances

Choosing an Encoder

Select resolution (pulses per revolution or bits), output type (TTL, HTL, SSI, fieldbus) and mechanical fit. Heavy-duty and stainless encoders handle shock and washdown. Match the interface to your drive or PLC.

Centro carries encoders for motion feedback and measurement.

Fuses

Fuses provide fast, dependable overcurrent protection for circuits, motors, drives and electronics. Their high interrupting ratings make them ideal where fault currents are high.

Fuse Types

Class CC, J and RK fuses – branch circuit protection
Time-delay fuses – motor inrush tolerance
Fast-acting fuses – electronics protection
Semiconductor fuses – drives and rectifiers
Midget and glass fuses – control circuits

Choosing a Fuse

Match class, amperage, voltage and interrupting rating to the circuit and fuse holder. Use time-delay fuses for motors and fast-acting fuses for semiconductors.

Centro carries fuses for industrial and commercial electrical systems.

Networking

Industrial networking connects PLCs, drives, HMIs and sensors so data moves reliably across the plant. Robust networks support automation, monitoring and remote access.

Networking Products

Unmanaged and managed Ethernet switches – connect devices
Industrial routers and firewalls – secure remote access
Protocol gateways – connect different networks
Wireless access points – mobile and hard-to-wire equipment
Industrial Ethernet cables and connectors – reliable links

Planning a Network

Consider the number of devices, protocols, segmentation and cybersecurity. Managed switches add diagnostics and traffic control. Use industrial-rated hardware for temperature and vibration.

Centro supplies industrial networking products.

Related categories: Electrical Accessories | Drag Chains | Connectors | Cable Entry | Thermal Management

Safety Sensors

Safety sensors form the backbone of industrial safety, providing a proactive approach to accident prevention and worker protection. These sensors are meticulously engineered to detect potentially hazardous conditions, such as motion, presence, or environmental changes. Employed in applications from automated machinery to conveyor systems, safety sensors swiftly identify unsafe situations and trigger appropriate responses, such as stopping equipment or initiating alarms. With their advanced technology and diverse configurations, including light curtains, area scanners, and proximity sensors, safety sensors ensure compliance with safety standards and regulations. By seamlessly integrating into industrial processes, safety sensors foster a secure environment, minimize risks, and empower industries to prioritize the well-being of workers and equipment.

Sensor Cables

Sensor cables carry power and signals between sensors and controllers. The right cable resists oil, flexing, washdown and heat, which keeps sensors working reliably and cuts troubleshooting.

Cable Options

M8 and M12 cordsets – straight and right-angle connectors
Double-ended patch cables – connect sensors to distribution boxes
High-flex cables – cable tracks and robot motion
Washdown and food-grade cables – stainless connectors and special jackets
Weld-field cables – resist spatter

Choosing a Cable

Match connector size, pin count and coding to the sensor. Choose jacket material (PVC, PUR, TPE) for the environment and length for the run. LED connectors show sensor status at a glance.

Centro carries sensor cables and cordsets for automation and machine building.

Timing Relays

Timing relays add time delays to control circuits, such as delaying a start, keeping a fan running after shutdown or cycling equipment on and off.

Timing Relay Types

On-delay relays – delay after energizing
Off-delay relays – delay after de-energizing
Repeat cycle relays – on/off cycling
Multi-function relays – select modes
DIN rail and plug-in styles – suit panels

Choosing a Relay

Select timing range, function, voltage and contacts. Multi-function relays reduce spare parts inventory.

Centro supplies timing relays for control circuits.

General Purpose Relays

General purpose relays are designed to control circuits by opening or closing contacts based on electrical signals. Relays are widely used across various industries, from automotive and telecommunications to industrial automation and household appliances. They facilitate the switching of electrical loads, providing reliable operation and safety features such as overload protection and isolation. With configurations for different voltage ratings, contact types, and mounting options, general purpose relays accommodate diverse application requirements. Their robust design promises longevity and performance consistency in controlling motors, lights, heaters, and other electrical devices. Tell us your coil voltage, contact arrangement and socket style, and we'll help you find the right general purpose relay for your panel.

RFID

RFID (radio-frequency identification) tracks parts, tools, pallets and assets without line of sight. It automates data capture and improves traceability in manufacturing and logistics.

RFID Components

RFID readers – read and write tag data
RFID transponders – tags for parts, carriers and tools
Antennas – extend read zones
Interface modules – PLC and network integration

Planning an RFID System

Define what you'll track, read distances, data needs and environment. Metal surfaces need special tags.

Centro supplies RFID systems for industrial tracking.

Shop by type: RFID Readers | RFID Transponders

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Categories from ABB (48)

MCCB Features

Choosing an MCCB

Breaker Types

Choosing a Breaker

Contactor Types

Choosing a Contactor

Push Button Options

Choosing the Right Button

Transformer Options

Choosing a Transformer

Accessories Available

Choosing Accessories

Disconnect Types

Choosing a Disconnect

Accessories Available

Ordering Tips

Lighting Contactor Types

Choosing a Contactor

Accessories Available

Choosing Accessories

Features

Choosing a Transformer

Indicator Light Options

Choosing Lights

Accessories Available

Choosing Accessories

Features

Choosing a Contactor

Switch Types

Choosing a Switch

Overload Relay Types

Sizing an Overload

Soft Starter Features

Soft Starter vs VFD

Manual Starter Types

Choosing a Starter

Contactor Types

Choosing a Contactor

Parts Available

Ordering Parts

Monitoring Products

Choosing a Solution

Accessories Available

Selecting Accessories

Fuse Block Types

Choosing a Holder

Accessories Available

Choosing Accessories

Safety Control Products

Designing a Safety System

Enclosure Options

Choosing an Enclosure

Features

Choosing a Controller

Power Supply Options

Choosing a Power Supply

Panel Options

What to Specify

Accessories Available

Building Better Panels

Electrical Control Products

Choosing Controls

Common Accessories

Choosing Accessories

Encoder Types

Choosing an Encoder

Fuse Types

Choosing a Fuse

Networking Products

Planning a Network

Cable Options

Choosing a Cable

Timing Relay Types

Choosing a Relay

RFID Components

Planning an RFID System

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$142.17

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