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This is a replacement solenoid coil only
What is the difference between this and a standard single-stage regulator
making it reliable for high-side protection in refrigeration racks and air conditioning units
reducing downtime on critical pump and motor drives
the 1C21-101 is an ideal low voltage room thermostat for commercial and residential applications where "cool only" operation is required
Allanson 421-557 Transformer Els PW 17895 This is a replacement solenoidThe Allanson 421 557 is a heavy duty oil burner ignition transformer engineered specifically for Arco and American Standard burners. This iron core transformer utilizes a 120V primary supply to deliver a consistent 10,000V secondary output at 23mA, ensuring a powerful arc for reliable burner ignition in demanding environments. Designed with a mid point ground configuration, the 421 557 features a high silicon steel core and large gauge copper windings