592 Overload Relay is a manual reset, eutectic alloy, thermal type overload device. When coordinated with the proper short circuit protection, the overload relay is intended to protect the motor, motor controller, and power wiring against overheating due to excessive overcurrents. 592 block type relays are furnished with an optical indicator which becomes visible when the relay has tripped. A manual contact test module is provided as standard on block type 592 overload relays. One N.O. or N.C. auxiliary contact may be field added to block type 592 overload relays. This extra contact module physically replaces the contact test module.
