Circuit and Load Protection products protect solenoids, relay coils, pilot devices, PLC outputs, and more. They are DIN Rail mountable for quick installation and excellent for high-density configurations. We offer electronic circuit protection modules, circuit breakers, and motor protectors including modular protection systems, bi-metallic or solid-state overload relays and surge protectors and filters.
Circuit breakers include industrial DIN Rail circuit breakers, high density miniature circuit breakers, motor circuit protectors, residual current devices, miniature circuit breakers, and supplementary protection devices. We offer many configurations, voltage ranges, and current ranges to meet your requirements.
Control & Load Switches
Our control and load switches offer you state-of-the-art solutions for almost any application. You can use Bulletin 194E load switches and Bulletin 194L control/load switches as 'at-motor disconnecting means' per article 430-J of the National Electrical Code.
Our Disconnect Switches are available in both fixed- and variable-depth styles with flange- or door-mounting styles. Our switches are NEMA, IEC, and UL rated. We offer a variety of fused and non-fused versions from 20...1250 A in both open and enclosed configurations.
Electronic Circuit Protection Modules
Our Electronic Circuit Protection Modules protect the secondary circuits of 24V DC switched mode power supplies. These modules monitor both supply voltage and load currents, and enhance protection over standard thermomagnetic circuit breakers.
Fuse holders provide a safe and convenient means for installing Class CC, J, and Midget fuses. These fuser holders are excellent for wire protection, small motor loads, and group protection of small motor loads.
Low Voltage Motor Protectors
Low Voltage Motor Protectors includes a broad selection of overload relays, enclosed motor protectors and modular protection systems. This product offering covers bimetallic relays and solid-state overload relays, as well as motor protection circuit breakers.
Medium Voltage Motor Protectors
Medium Voltage Motor Protectors include Bulletin 857 Motor-Feeder Protection and Bulletin 865 Differential Protection Relay to meet your motor and feeder protection requirements.
The MachineAlert™ family of dedicated function motor protection relays offers supplementary protective functions that are easily added to your motor control circuits. These relays meet application requirements for supplemental voltage-, current-, thermistor-, power-, and power factor based protection. MachineAlert relays are an economical choice for protecting equipment investments and minimizing production downtime.
Surge Protectors & Filters
Surge Protectors and Filters meet the needs of industrial surge and filter protection requirements. Our surge protectors and filters protect motor drives, contactors, capacitor bank switching and more. They mount to a DIN rail or panel.
In ROK Talk on Industrial Components Episode 6, Bill and Paul talk to Technology Consultant, Simon Johnson, about the history, purpose and unique features of each circuit breaker. Allen-Bradley is famous for acronym use; especially, when it involves circuit breakers-MCCBs, MPCBs, MCPs, MCBs. What is each and how do you know which to use?