Description
The Copeland 24A05A-1 is a 120VAC electric heat relay designed to switch electric heating loads in residential and light commercial HVAC systems, providing reliable electrically operated contact switching between the low-voltage thermostat or control board signal and the line-voltage electric heat circuit. Electric heat relays of this type are a fundamental control component in electric furnaces, electric air handlers, and heat pump systems with auxiliary or emergency electric heat strips, where the thermostat's low-voltage output must be stepped up to switch the 120VAC load circuit that energizes the heating elements. The 120VAC coil rating defines the control voltage required to energize the relay, distinguishing it from 24V coil relays used in standard thermostat-direct switching applications and making it appropriate for control panel configurations where 120VAC control power is available at the relay coil. As an OEM-quality White-Rodgers replacement, the 24A05A-1 is a direct-fit service component for electric heating control circuits in furnaces, air handlers, and heat pump auxiliary heat systems where relay coil failure, contact wear, or welded contacts have been identified as the cause of electric heat control malfunction.
Key Features
- 120VAC coil rating for use in control panel configurations where 120VAC control power is supplied to the relay coil
- Designed specifically for electric heat relay applications in electric furnaces, air handlers, and heat pump auxiliary heat systems
- Switches line-voltage electric heating element loads on thermostat or control board actuation signal
- Interfaces low-voltage or 120VAC control signals with electric heat strip load circuits
- Direct replacement for failed or degraded electric heat relays exhibiting coil failure, contact wear, or welded contact conditions
- OEM-quality White-Rodgers construction ensures electrical compatibility with original equipment control circuit specifications
- Suited for residential and light commercial electric heating and heat pump auxiliary heat applications
- Supports accurate field identification and efficient component-level swap-out during electric heat control system service calls
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