![Resideo - Honeywell Home RC840T-120 Electric Heating Relay — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/spec-9032906768606.png?v=1782846113&width=1445)
RC840T-120 Electric Heating Relay from Resideo - Honeywell Home delivers reliable ON/OFF control for residential heating systems. This AC-operated relay uses a 24V AC coil to switch 120V AC loads with a 16 A full-load rating and a 42 A locked-rotor surge capacity, making it a robust choice for HVAC applications. The device supports a 22 A resistive load and includes a transformer for 22 A at 120V AC operation. UL-approved for both US and Canada, it is built to perform in challenging environments from -4 to 140 degrees F and 0–95% relative humidity.
- Coil & load: 24V AC coil, switches 120V AC at 60 Hz with 16 A full-load, 42 A locked-rotor, and 22 A resistive load
- Control type: ON/OFF switching for simple, dependable operation
- Terminals: 12 AWG wiring for secure connections
- Environment & rating: -4 to 140°F; 0–95% RH; UL-approved (Canada and US)
- Transformer: Includes 22 A at 120V AC transformer for easy integration
Specifications
| Type | AC Operated |
|---|---|
| Approvals | UL (Canada and US) |
| Coil Voltage | 24 Volt AC |
| Terminal Type | 12 AWG Wire |
| Contact Current Rating | 16 Amp (Full Load), 42 Amp (Locked Rotor), 22 Amp (Resistive Load) |
| Contact Voltage Rating | 120 Volt AC at 60 Hertz |