Pneumatic and Electronic Controls - Balluff
We provide various products, including valves, motion control, electrical enclosures, HMIs, power tools, and electric control systems. In addition to these products, we offer compressed air products to power pneuma...
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
Detection and ranging sensors such as LiDAR, radar and time-of-flight devices measure distance and detect objects over longer ranges and in tough conditions. They're used for collision avoidance, positioning, level measurement and vehicle detection.
Sensor Technologies
- LiDAR sensors – 2D and 3D scanning for mapping and detection
- Radar sensors – reliable in dust, rain, fog and darkness
- Time-of-flight laser sensors – precise long-range distance
- Ultrasonic ranging sensors – economical object detection
Choosing a Sensor
Consider range, accuracy, field of view, target type and environment. Radar handles dirty outdoor conditions, and LiDAR gives detailed spatial data. Check outputs and integration options with your controller.
Centro supplies detection and ranging sensors for industrial and mobile equipment.
Related categories: Automation & Robotics Sensors | Fiber Optic Sensors | Sensor Connectors | Level Sensors | Sensor Cables
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
RFID readers capture data from RFID tags without line of sight. They automate tracking of parts, tools, pallets and assets in manufacturing and logistics.
RFID Reader Types
- LF and HF readers – short-range industrial identification
- UHF readers – longer range and bulk reading
- Read/write heads – update tag data on the fly
- Fieldbus-integrated readers – PLC connectivity
Choosing a Reader
Select frequency, range and interface for your application. Metal environments may need special tags and antennas.
Centro supplies RFID readers for industrial identification.
Related categories: RFID | RFID Transponders
RFID transponders (tags) store data that RFID readers can read and write without line of sight. They identify parts, carriers, tools and pallets throughout production.
Transponder Types
- LF and HF tags – short-range industrial ID
- UHF tags – longer range
- On-metal tags – mount directly on metal
- High-temperature tags – paint and heat processes
- Read-only and read/write – data needs
Choosing Tags
Match frequency to readers, and select size, memory and mounting for your application.
Centro supplies RFID transponders for industrial tracking.
Related categories: RFID | RFID Readers
Sensor accessories help sensors install correctly and work reliably. Brackets, reflectors, protective housings and cables are essential to a solid installation.
Accessories Available
- Mounting brackets – secure positioning
- Reflectors – retroreflective photoelectric sensors
- Protective covers – impact and weld spatter
- Cables and connectors – quick-disconnect wiring
- Alignment tools – faster setup
Choosing Accessories
Match accessories to sensor model and size. Protective housings extend sensor life in harsh areas.
Centro supplies sensor accessories.
Related categories: Automation & Robotics Sensors | Temperature Sensors | Condition Monitoring | Automation Light Grids | Pressure Sensors
Standard power supplies are essential devices that convert incoming electrical energy into a suitable and stable form to power electronic equipment and devices. These power supplies provide a consistent and regulated output voltage or current to ensure reliable operation and protection of electronic components. They are widely used in various applications, including consumer electronics, telecommunications, industrial automation, and computer systems. Standard power supplies come in different form factors, such as wall adapters, desktop units, and rack-mountable models, offering versatility to meet different requirements. Standard power supplies provide a reliable and efficient power source for various electronic devices and systems with features like overvoltage protection, short circuit protection, and high efficiency.
Shop by type: Control Transformers | Power Supplies | Transformers | Standard Power Supplies
Related categories: Pneumatic and Electronic Controls | Uninterrupted Power Supplies | Electrical Accessories | Electrical Control | Circuit Protection
HMI (Human-Machine Interface) accessories are additional components and peripherals that enhance the functionality and usability of HMI systems. These accessories are designed to improve user interaction, provide connectivity options, and expand the capabilities of HMI devices. HMI accessories include touchscreen protectors, mounting brackets, communication cables, expansion modules, wireless adapters, stylus pens, and protective cases. These accessories allow for customization, ease of installation, and improved durability of HMI devices. They enhance the user experience, provide flexibility in system integration, and enable seamless connectivity with other devices and networks. HMI accessories play a vital role in optimizing the performance and usability of HMI systems in various industries, including automation, manufacturing, and process control.
Related categories: Pneumatic and Electronic Controls | Valve Systems | Specialty and Industry Specific Products | Electrical Control | Uninterrupted Power Supplies
Industrial power supplies convert AC line voltage into regulated DC power, typically 24V, for PLCs, sensors, HMIs and controls. A reliable power supply is the foundation of a stable control panel.
Power Supply Options
- DIN rail power supplies – compact panel mounting
- Single and three-phase inputs – suit your supply
- Redundancy modules – protect critical systems
- DC UPS and buffer modules – ride through outages
- Diagnostics – relay contacts and IO-Link monitoring
Choosing a Power Supply
Add up load currents and size with 20-25% margin. Consider ambient temperature derating and peak loads. Redundant supplies protect key systems.
Centro supplies industrial power supplies for control panels.
Related categories: Standard Power Supplies | Transformers | Control Transformers | Standard Power Supplies
A human machine interface (HMI) is the screen operators use to run and monitor equipment. A well-chosen HMI shows the right information clearly, makes alarms easy to understand and cuts down on operator errors, from a single machine up to a whole process line.
HMI Options
- Touchscreen operator panels – 4" to 15"+ displays for machine-level control
- Industrial panel PCs – run SCADA and advanced visualization software
- Text displays and keypads – simple, rugged interfaces for basic equipment
- Web-enabled and remote HMIs – view and control machines from a browser or mobile device
- HMI accessories – mounting kits, cables, protective covers and software
Choosing an HMI
Start with communication: make sure the HMI supports your PLC's protocol, such as EtherNet/IP, Modbus or PROFINET. Then size the screen for the information operators need and check the panel cutout, environmental rating and sunlight readability. Software licensing and ease of programming also affect long-term cost.
Centro offers HMIs and accessories from leading automation brands and can help you pick one that works with your existing controls.
Related categories: Pneumatic and Electronic Controls | Pneumatic Directional Control Valves | Pneumatic Accessories
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
Circuit protection devices protect people, equipment and wiring from overloads, short circuits and faults. Choosing the right device is critical for safety and code compliance.
Circuit Protection Products
- Circuit breakers – miniature and molded case breakers
- Fuses and fuse blocks – fast and time-delay protection
- Disconnect switches – isolate equipment for safe service
- Breaker and disconnect accessories – handles, contacts and trips
- Breaker conversion kits – modernize older equipment
Choosing Protection
Size protection to the load and conductor rating, and confirm interrupting ratings meet available fault current. Follow NEC and UL requirements. Selective coordination helps keep faults isolated.
Centro supplies circuit protection devices from leading electrical brands.
Shop by type: Circuit Breaker Accessories | Disconnect Accessories | Circuit Breakers | Fuses | Fuse Blocks and Holders | Disconnect Switches | Circuit Monitoring
Related categories: Pneumatic and Electronic Controls | Electrical Accessories | Standard Power Supplies | Motor Control
$589.54
Subject to factory lead times
$320.17
Subject to factory lead times
$95.83$100.94
Subject to factory lead times
$465.67$490.51
Subject to factory lead times
$2,514.48$2,648.63
Subject to factory lead times
$527.10$555.22
Subject to factory lead times
$383.21
Subject to factory lead times
$724.18
Subject to factory lead times
$705.27
Subject to factory lead times
Subject to factory lead times
$352.87
Subject to factory lead times
$265.94
Subject to factory lead times
$59.41
Subject to factory lead times
$122.67
Subject to factory lead times
$32.26
Subject to factory lead times
$194.93
Subject to factory lead times
$44.86
Subject to factory lead times
$40.98
Subject to factory lead times
$100.62
Subject to factory lead times
$81.02$85.34
Subject to factory lead times
$119.90$126.29
Subject to factory lead times
$158.00$166.42
Subject to factory lead times
$89.21$93.96
Subject to factory lead times
$1,256.50
Subject to factory lead times
$589.54
Subject to factory lead times
$320.17
Subject to factory lead times
$95.83$100.94
Subject to factory lead times
$465.67$490.51
Subject to factory lead times
$2,514.48$2,648.63
Subject to factory lead times
$527.10$555.22
Subject to factory lead times
$383.21
Subject to factory lead times
$724.18
Subject to factory lead times
$705.27
Subject to factory lead times
Subject to factory lead times
$352.87
Subject to factory lead times
$265.94
Subject to factory lead times
$59.41
Subject to factory lead times
$122.67
Subject to factory lead times
$32.26
Subject to factory lead times
$194.93
Subject to factory lead times
$44.86
Subject to factory lead times
$40.98
Subject to factory lead times
$100.62
Subject to factory lead times
$81.02$85.34
Subject to factory lead times
$119.90$126.29
Subject to factory lead times
$158.00$166.42
Subject to factory lead times
$89.21$93.96
Subject to factory lead times
$1,256.50
Subject to factory lead times
- Selecting the right pneumatic cylinder starts with defining the four core parameters of your application. Define four core parameters: bore size (force output = pressure × piston area, plus a 25–50% safety factor), stroke length (match to required travel, avoid excess), mounting style (fixed, flange, or pivot to suit your mechanical arrangement), and environment (standard, washdown, or food-grade seals). Speed is controlled by external flow valves, not cylinder selection. For precise positioning, consider a guided or rodless cylinder with position sensing rather than a standard unit.
- A soft starter ramps voltage at startup to limit inrush current and reduce mechanical shock, then steps aside once the motor reaches full speed. Use one when smooth starting is your only requirement. A VFD controls motor speed continuously throughout operation, making it the right choice whenever the process needs variable speed — conveyors, pumps, fans — and it delivers significant energy savings in centrifugal applications. If you only need a gentle start, use a soft starter. If you need speed control at any point during operation, invest in a VFD.
- PLCs are purpose-built for industrial environments — they tolerate heat, vibration, and electrical noise while executing control logic in deterministic millisecond scan cycles. They replace hardwired relay logic with reprogrammable software, making process changes fast and inexpensive. Built-in diagnostics centralize fault visibility and cut troubleshooting time. Modern PLCs integrate with HMIs, SCADA, and enterprise networks via standard protocols, enabling real-time data collection. Modular architecture means the system scales as the application grows.
- Start with the NEMA or IP rating: NEMA 1 for basic indoor use, NEMA 4/4X for washdown and outdoor exposure (4X adds corrosion resistance), NEMA 7/9 for hazardous classified locations. Size the enclosure with 20–30% spare interior space for future additions and adequate heat dissipation. Choose material based on environment — painted steel for standard indoor use, stainless for washdown or chemical exposure, fiberglass for highly corrosive areas. Verify any required certifications (UL, CSA, ATEX) before specifying.
- Solenoid valves are electrically actuated and can be triggered instantly by a PLC or control system, making them essential for automated, repeatable, or high-cycle applications. Manual directional control valves require a person to physically shift the valve and are appropriate for infrequent operations, manual overrides, or applications with no control system. In practice, most automated systems use solenoid valves for normal operation with a manual override built in for setup, maintenance, and emergency use. If the valve must respond to a signal, cycle repeatedly, or operate unattended, solenoid is the correct choice.