Siemens Industrial Controls 3UG5512-1AR20 Monitor Relay 323055-751 This product contains chemicals including

This product contains chemicals including carbon-black extracts

This component is a critical OEM replacement part for McQuay air-cooled chillers and rooftop units

or high-limit trips caused by motor failure

Simplified Installation: Standard 1/2 inch ODF connections allow for traditional brazing techniques without specialized adapters

It features a sweat/braze connection for a secure

Siemens Industrial Controls 3UG5512-1AR20 Monitor Relay 323055-751 This product contains chemicals includingThe Siemens 3UG5512 1AR20 is a high performance digital line monitoring relay designed for precise supervision of three phase systems in demanding industrial and HVACR environments. Engineered for versatility, this unit supports a broad line voltage range of 160V to 690V AC, making it a reliable solution for monitoring phase sequence, phase failure, and phase asymmetry. Its digital interface allows for granular adjustment of undervoltage and