194 Thermal Overload Relays
Allen-Bradley 194 Thermal Overload Relays
Allen-Bradley 194 Thermal Overload Relays are designed to protect industrial motors from overload conditions by monitoring current and disconnecting the motor circuit when safe operating limits are exceeded. These relays are widely used in motor control centers (MCCs) and industrial control panels where dependable motor protection helps prevent equipment damage and unplanned downtime.
Thermal overload relays operate using heat generated by current flow to simulate motor heating conditions. When current exceeds the configured threshold for a defined period of time, the relay trips and interrupts the motor control circuit. Matching the correct relay to the motor’s full-load current and starter configuration is essential for reliable protection and proper system operation.
Typical applications
- Motor control centers (MCCs)
- Industrial pumps, compressors, and fans
- Conveyors and material handling equipment
- Packaging and manufacturing machinery
- OEM equipment and automation systems
Key selection factors
- Motor full-load current (FLA)
- Relay current adjustment range
- Trip class and overload characteristics
- Mounting compatibility with motor starter
- Auxiliary contact and control circuit requirements
Related categories
If you are replacing an existing overload relay, verify the relay current range, trip class, mounting style, and compatibility with the contactor or starter used in your control panel.