Motor Logic overload relays can be standalone devices or can be used on Type S full voltage non-reversing and reversing starters and combination starters. Motor Logic relays are ambient insensitive and self-powered. Designed to protect 50/60 Hz, three phase AC motors from overloads, phase unbalance and phase loss conditions. This Motor Logic solid state overload relay is for use with NEMA size 1 three pole starters. This Motor Logic solid state overload relay has a full load current rating of 9A to 27A. Maximum voltage rating of 600 V. The trip free operation will help the motor from overheating. Switch selectable from Class 10 to Class 20 overload trip. Electrical remote reset is available. The visible trip indicator and trip test function make trouble shooting much quicker. This overload relay is 2.69 inches tall, 3.26 inches wide and 3.90 inches deep. Relay weighs 1.21 lbs. Motor Logic SSOLR are UL listed and CSA certified. Separate mount overload relays are UL listed and CSA certified.