Electrical Accessories
Electrical accessories complete control panels and machines. Push buttons, signal devices, connectors, thermal management and cable systems let operators control equipment and keep panels running reliably.
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Control lighting, as part of electrical accessories, is pivotal in managing illumination in homes, commercial spaces, and industrial environments. These lighting control systems encompass a variety of components and technologies that enable users to regulate and optimize the lighting environment. This includes dimmer switches, timers, motion sensors, and smart lighting solutions. Dimmer switches allow users to adjust the brightness to create the desired ambiance and save energy. Timers can automate lighting schedules, enhancing security and energy efficiency. Motion sensors can detect occupancy and trigger lighting, reducing energy waste in unoccupied areas. Smart lighting systems, controlled through mobile apps or voice commands, offer advanced customization and energy monitoring capabilities. Control lighting accessories empower users to improve comfort and convenience and reduce energy consumption and promote sustainability, making them integral in modern lighting design and management.
Related categories: Electrical Accessories | Transformer Accessories | Connectors
Electrical connectors make secure, serviceable connections for power, signal and data. Quality connectors reduce failures and make equipment faster to install and maintain.
Connector Types
- Terminal blocks – DIN rail wiring
- Heavy-duty industrial connectors – modular power and signal
- Circular connectors – M8, M12 and M23
- Pin-and-sleeve devices – portable power
- Wire connectors and lugs – splices and terminations
Choosing Connectors
Match current, voltage, wire size and environment. Choose IP-rated connectors for washdown and outdoor use. Coding prevents wrong connections.
Centro supplies connectors for panels and machines.
Related categories: Electrical Accessories | Networking | Drag Chains | Control Lighting
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
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.
Related categories: Electrical Accessories | Transformer Accessories | Control Lighting
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.
Related categories: Electrical Accessories | Electrical Accessories | Specialty Conduit Fittings and Hardware | Specialty Conduit | Label Sleeves and Holders
Drag chains, also known as cable drag chains or cable carriers, are essential components in various industrial applications. These robust and flexible systems are designed to protect and manage cables and hoses while allowing them to move smoothly within machinery and equipment. Drag chains are constructed from a series of interconnected links, which form a protective and self-supporting conduit for electrical cables, pneumatic hoses, and hydraulic lines. They are exceptionally vital in manufacturing, automation, and robotics, as they prevent tangling, abrasion, and damage to cables and provide a streamlined and organized solution for cable management. Whether in CNC machines, conveyor systems, or industrial robots, drag chains play a critical role in ensuring modern industrial equipment's reliable and efficient operation.
Related categories: Electrical Accessories | Cable Entry | Networking | Labeling Systems | Connectors
Cable entry products are essential components in electrical and electronic systems, serving as the interface points where cables, wires, and conduits enter enclosures, cabinets, or equipment. These versatile solutions ensure that cables are securely and neatly routed into and out of protective enclosures while maintaining environmental integrity. Cable entry products come in various forms, including cable glands, cord grips, cable connectors, and bulkhead fittings, and they are designed to provide strain relief, seal against dust, moisture, and contaminants, and prevent cable damage. In telecommunications, industrial automation, and energy industries, cable entry products are crucial for maintaining the reliability and safety of electrical connections and safeguarding equipment from external elements, ultimately contributing to the overall functionality and longevity of complex systems.
Related categories: Electrical Accessories | Labeling Systems | Drag Chains | Labels | Networking
Labeling systems identify wires, terminals, cables and equipment clearly and permanently. Good labels speed up troubleshooting, improve safety and support compliance.
Labeling Products
- Label printers – portable and desktop
- Wire markers and sleeves – heat-shrink and slip-on
- Terminal markers – terminal block identification
- Safety and arc flash labels – compliance
- Durable label materials – resist chemicals and heat
Choosing a System
Select printer and label materials for your environment and volume. Standardized labeling makes maintenance easier.
Centro supplies labeling systems for panels and facilities.
Related categories: Electrical Accessories | Labels | Cable Entry | Label Sleeves and Holders | Drag Chains
Electrical labels identify wires, panels, equipment and hazards. Clear, durable labels improve safety, cut troubleshooting time and support code compliance.
Label Types
- Wire and cable markers – identify conductors
- Panel and device labels – identify components
- Arc flash and safety labels – hazard warnings
- Engraved tags and nameplates – permanent identification
- Heat-shrink markers – durable wire ID
Choosing Labels
Select material for the environment (heat, chemicals, UV) and printing method. Consistent labeling standards simplify maintenance.
Centro supplies electrical labels and marking products.
Related categories: Electrical Accessories | Label Sleeves and Holders | Labeling Systems | Specialty Conduit | Cable Entry
Label sleeves and holders are versatile accessories used in various applications across industries. These tools serve as protective and organizational solutions for labels, tags, and identification markers. Label sleeves, often made from durable materials like plastic or metal, encase labels, safeguarding against wear, tear, and environmental factors. Meanwhile, label holders can securely affix labels to various surfaces, from shelving units to equipment. They are vital in maintaining a clear and structured identification system, ensuring that information remains easily accessible and legible in a range of environments. Label sleeves and holders are indispensable for warehouse applications, retail, healthcare, and beyond, helping streamline processes, enhance organization, and facilitate quick and accurate identification of items and components.
Related categories: Electrical Accessories | Specialty Conduit | Labels | Specialty Conduit Fittings and Hardware | Labeling Systems
Specialty conduit refers to various protective tubing or piping systems used in multiple industries and applications to house and safeguard electrical, data, or communication cables. Unlike standard conduits, specialty conduits are designed to meet specific requirements, often addressing unique challenges posed by the environment or the type of cables they encase. These conduits come in various forms, such as flexible, non-metallic, or armored, and they can be used in settings as diverse as hazardous locations, industrial automation, or cleanroom facilities. Specialty conduits offer features like chemical resistance, extreme temperature tolerance, or explosion-proof properties, making them vital components for ensuring the integrity and longevity of cable installations in specialized applications. Their adaptability to distinct conditions, such as corrosive environments or extreme temperatures, enables the safe and reliable transmission of critical data or power, making them indispensable in many industrial sectors.
Related categories: Electrical Accessories | Specialty Conduit Fittings and Hardware | Label Sleeves and Holders | Electrical Accessories | Labels
Specialty conduit fittings and hardware play a crucial role in installing and maintaining specialty conduits within various industrial applications. These fittings are designed to provide secure connections, facilitate cable entry and exit, and ensure the integrity of cable protection systems. They include a wide array of components, such as connectors, adapters, junction boxes, and mounting hardware, each tailored to meet the specific requirements of specialty conduits. Whether in hazardous locations, industrial automation setups, or cleanroom environments, these fittings are essential for maintaining the reliability of cable installations. They provide solutions for sealing, grounding, and connecting conduit sections, ultimately enhancing the durability and safety of cable systems in specialized applications.
Related categories: Electrical Accessories | Electrical Accessories | Specialty Conduit | Mechanical Switches | Label Sleeves and Holders
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.
Related categories: Electrical Accessories | Mechanical Switches | Specialty Conduit Fittings and Hardware | Specialty Conduit | Label Sleeves and Holders
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.
Related categories: Electrical Accessories | Control Lighting
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$74.96
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$119.19
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$194.85
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$435.75
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$25.59
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$248.26
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$130.75
Subject to factory lead times
$157.15
Subject to factory lead times
Subject to factory lead times
Subject to factory lead times
Subject to factory lead times
Subject to factory lead times
$77.10
Subject to factory lead times
$80.75
$26.57
$146.80
$72.10
Subject to factory lead times
Subject to factory lead times
Subject to factory lead times
$64.20
Subject to factory lead times
$117.59
Subject to factory lead times
Subject to factory lead times
Subject to factory lead times
$74.96
Subject to factory lead times
$119.19
Subject to factory lead times
$194.85
Subject to factory lead times
$435.75
Subject to factory lead times
$25.59
Subject to factory lead times
$248.26
Subject to factory lead times
Subject to factory lead times
$130.75
Subject to factory lead times
$157.15
Subject to factory lead times
Subject to factory lead times
Subject to factory lead times
Subject to factory lead times
Subject to factory lead times
- Industrial control panels rely on a range of electrical accessories to organize wiring, provide operator input, and indicate system status. Common categories include push buttons and selector switches for operator control, pilot lights and indicator lights for visual status feedback, terminal blocks for organizing and connecting field wiring, wire duct (also called wiring trunking) for routing and managing cables within the enclosure, DIN rail for mounting components, and cable glands and cord grips for securing cables entering the enclosure. These accessories may seem secondary to the main control devices, but they are essential for building a panel that is safe, organized, and maintainable.
- The 22mm and 30mm designations refer to the panel cutout diameter — the size of the hole required to mount the device. 22mm is the current IEC standard and is the most widely used size in new industrial panel designs worldwide. 30mm is the traditional NEMA standard, still common in North American heavy-industrial and legacy panels. Functionally, both sizes offer the same types of operators — flush, extended, mushroom head, illuminated, and emergency stop — but 22mm devices are more compact, allowing more operators in a smaller panel footprint. When designing a new panel, 22mm is the standard choice unless the application requires the larger 30mm format for gloved-hand operation or compatibility with an existing panel cutout.
- Terminal blocks are modular, insulated connectors mounted on DIN rail inside a control panel that provide a secure, organized connection point between field wiring and internal panel wiring. Instead of splicing wires together or landing every field wire directly on a device terminal, terminal blocks create a clean interface — field wires land on one side, and internal panel wires connect on the other. This makes troubleshooting, testing, and future modifications far easier because individual circuits can be disconnected and tested at the terminal block without disturbing the device wiring. Terminal blocks are available in screw-clamp, spring-clamp, and push-in styles, and in configurations for signal wiring, power distribution, grounding, fused circuits, and sensor connections.
- Wire duct (also called wiring trunking or cable raceway) is a slotted plastic channel mounted inside a control panel to route and organize wiring between components. The slots along the sides allow wires to exit the duct at any point along its length, providing clean access to terminal blocks, contactors, circuit breakers, and other devices. To select the correct size, the general rule is that wires should fill no more than 40–50% of the duct's cross-sectional area — this allows room for adding wires in the future and prevents excessive heat buildup. Duct is available in various widths and depths, and in standard slotted, narrow-slot, and solid-wall versions depending on the wire gauge and density of the application.
- An emergency stop push button is a safety device that immediately de-energizes a machine or process when pressed by an operator. E-stops are typically large, red, mushroom-head buttons on a yellow background for high visibility, and they use a latching mechanism — once pressed, they stay locked in the off position until manually released by twisting, pulling, or using a key. This prevents accidental restart. OSHA and machine safety standards (such as NEMA ICS 6 and ISO 13850) require emergency stop devices on machinery where a hazard to personnel exists. E-stops must be wired into the safety circuit so that pressing the button removes power from all hazardous motion. They should be mounted in a location that is immediately accessible to the operator, and every machine should have at least one.