Universal Silicon Carbide Integrated Ignition Control Replaces most Trane, York, ICP, Amana and White-Rodgers models, the 50A55-843 universal silicon carbide integrated ignition control controls gas valve, igniter, blower, inducer, humidifier and air cleaner operations. Features: Replaces Most White-Rodgers and OEM Integrated Ignition Modules for Silicon Carbide Applications Extensive Model Cross-Reference Provided Diagnostic LED Additional Jumpers to Extend the Length of the Connections Application Gas-Fired Forced-Air Furnaces with Integrated Furnace Control Module with a Silicon Carbide Igniter Replaces 50A55-120, -143, -285, -286, -288, -438, -571, -574 Electrical Rating at 77°F (25°C): Input Voltage: 25 VAC, 50/60 Hz Max. Input Current (@ 25 VAC): 0.45 amp Relay Load Ratings: Valve Relay: 1.5 A @ 25 VAC, 50/60 Hz, 0.6f Igniter Relay: 6.0 A @ 120 VAC, 50/60 Hz (resistive) Inducer Relay: 2.2 FLA-3.5 FLA @ 120 VAC Circulator Relay: 14.5 FLA-25.0 FLA @ 120 VAC Operating Temperature: -40° to 175°F (-40° to 80°C) Humidity Range: 5% to 93% Max Load (Current): 0.45 A @ 25 VAC White-Rodgers, a recognized leader in climate control solutions, celebrates 75 years of business in 2012. Experience, integrity and customer service are still the tenets that mark this great company. From the humble beginnings of two engineers collaborating to solve the control problem of the day, to being the answer for your climate control needs, White-Rodgers is the respected name among industry professionals and home owners alike.