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Circuit & Load Protection

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.

Rockwell Automation, the world’s largest company dedicated to industrial automation, makes its customers more productive and the world more sustainable. Throughout the world, the flagship Allen-Bradley® and Rockwell Software® product brands are recognized for innovation and excellence.

1489 Thermal-magnetic Circuit Breakers

Bulletin 1489-M Thermal-magnetic Circuit Breakers are UL 489 Listed for branch circuit protection in the United States and Canada, and they are certified as Miniature Circuit Breakers for IEC applications. These circuit breakers are ideal for extreme ambient conditions, feature fast breaking time, and superior shock and vibration resistance.

1492 Residual Current Devices

Bulletin 1492-RCDA Residual Current Devices detect and interrupt leakage to the ground, helping you prevent injury to exposed personnel and damage to equipment. Use these devices with miniature circuit breakers for additional circuit protection from overload, short circuit, and ground fault.

194R Rotary Disconnect Switches

Our Rotary Disconnect Switches offer a variety of fused and non-fused versions from 20…1250 A and can be ordered with or without an enclosure. Non-fused styles permit use of your own fuse blocks. Fused switches, with integral fuse carriers, reduce panel space requirements.

1492 Supplementary Protectors

Bulletin 1492-SPM Supplementary Protectors are used to protect equipment in applications. They are current-limiting and feature dual terminals for wiring and bus bar flexibility. With a 40 ˚C (104 °F) calibration temperature, these protectors are suitable for extreme ambient conditions.

140G Molded Case Circuit Breakers

Bulletin 140G Molded Case Circuit Breakers have nine different frame sizes with a range of 10…3000 A to accommodate your required current ratings and breaking capacities. With a wide range of operators and accessories, these circuit breakers provide the protection of circuits against overload, short circuit, and ground fault.

140M Motor Circuit Protectors

Our Bulletin 140M Motor Circuit Protectors may provide a disconnecting means for motor branch circuit, branch-circuit and short-circuit magnetic protection, and manual switching. These devices are rated from 0.16…45 A. In North America, electrical codes require that an individual motor branch circuit be protected by a UL/CSA Listed fuse, circuit breaker, or self-protected combination motor controller.

140MG Motor Circuit Protectors

Our Bulletin 140MG Motor Circuit Protectors can provide a disconnecting means for motor branch circuit, branch-circuit and short-circuit magnetic protection, and manual switching. These devices are rated from 3…1200 A. In North America, electrical codes require that an individual motor branch circuit be protected by a UL/CSA Listed fuse, circuit breaker, or self-protected combination motor controller.

140M Motor Protection Circuit Breakers

Our Bulletin 140M Motor Protection Circuit Breakers can provide a disconnecting means for motor branch circuit, branch-circuit and short-circuit magnetic protection, overload thermal protection, and manual switching. These devices are rated from 0.1…45 A.

140MG Motor Protection Circuit Breakers

Our Bulletin 140MG Motor Protection Circuit Breakers can provide a disconnecting means for motor branch circuit, branch-circuit and short-circuit magnetic protection, overload thermal protection, and manual switching. We offer devices rated from 25…150 A to meet your particular needs. Our factory-installed internal accessories make installation and wiring easy. In North America, electrical codes require that an individual Motor Branch Circuit be protected by a UL/CSA Listed Fuse, Circuit Breaker, or Self-protected Combination Motor Controller.

E100 Electronic Overload Relays

Our E100 Electronic Overload Relays are the next generation basic-tier electronic overload relay. These relays include enhanced features to better safeguard your motor protection investments. The E100 includes increased accuracy and repeatability, a self-powered design with lower heat dissipation, and the certifications to comply with many applications.

E300/E200 Electronic Overload Relays

Our Bulletin 193/592 E300™ (networked) and E200™ (non-networked) Electronic Overload Relays are the newest technologies for overload protection. The modular design, communication options, diagnostic information, simplified wiring, and integration into Logix technology make them the ideal overload for motor control applications in an automation system.

193-K IEC Miniature Bimetallic Overload Relays

Bulletin 193-K IEC Miniature Bimetallic Overload Relays are designed for use with Bulletin 100-K Contactors and Bulletin 104-K Reversing Contactors. These thermal overload relays include a differential mechanism for sensitivity to phase-loss conditions.

193-T1 IEC Bimetallic Overload Relays

Bulletin 193-T1 IEC Bimetallic Overload Relays are designed for use with Bulletin 100-C Contactors and Bulletin 104-C Reversing Contactors.

809S Current Monitoring Relay

Bulletin 809S Current Monitoring Relays offer state-of-the-art supplementary protective functions that are easily added and applied to your motor control circuits.

813S Voltage Monitoring Relay

Bulletin 813S Voltage Monitoring Relays offer state-of-the-art supplementary protective functions that you can easily add and apply to your motor control circuits.

814S Power Monitoring

Bulletin 814S Power Factor Monitoring Relays and Power (kW) Monitoring Relays offer state-of-the-art supplementary protective functions that you can easily add and apply to your motor control circuits.

817S Thermistor Monitoring Relay

Bulletin 817S Thermistor Monitoring Relays offer state-of-the-art supplementary motor protective functions that you can easily add and apply to your motor control circuits.

DIN Rail Surge Protector & Filters

Bulletin 4983-DC DIN Rail Filter and Surge Protective Device is the combination of a filter and a surge protective device. This device provides transient and noise protection in one small package.

DIN Rail Dataline Surge Protectors

Bulletin 4983-DD DIN Rail Dataline Surge Protective Devices protect industrial communication networks. These devices use a combination of 3-electrode gas discharge tubes and fast-clamping diodes.

DIN Rail AC Surge Protectors

Bulletin 4983-DS DIN Rail AC Surge Protective Devices are connected in parallel and use a MOV to clamp high-voltage surges. These devices are primarily used in the main electrical panel to protect 1- and 3-phase systems.

Electronic Circuit Protectors

Our 1692 Block-Style Electronic Circuit Protectors protect the secondary circuits of 24V DC switched-mode power supplies. These modules monitor supply voltage and load currents, and you can monitor and control the modules locally and remotely.