Stage Module Input Voltage 20 to 30V AC Overall Height 5 in Compatible with Series A350 A350E A350P A350R Compatible with Grainger Part Number 36P546 36P547 36P548 41X169 58YG76 Compatible with Manufacturer Model Number A350AA-1C A350AA-2C A350EA-4C A350PS-1C A350PS-2C A350RS-1C Standards cUL Listed UL Listed Product Type Temperature Stage Module Application Air Conditioning Heating Control Refrigeration Overall Length 2 3/8 in