AC120V On/Off Switching Electric Heating Relay with Built-in 24V Transformer, OONO F-1057

★★★★★ 4.7 18 reviews

US$11.20
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Product details

Management number 239534104 Release Date 2026/07/14 List Price US$11.20 Model Number 239534104
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FEATURES: 1, The F-1057 Electric Heating Relay is designed to control a AC 120V line voltage resistive load from a low voltage thermostat. The F-1057 relay has a built-in 24 V transformer and is compatible with 3-wire (R, C, W) thermostats as well as 2-wire (R, W) mechanical and battery-operated thermostats. 2, Replacement for any brand relay. Immediate relay activation provides improved temperature control and comfort. Easy to install, merely munted it on the side of existing junction box and attached the wires from the new thermostat. 3, LED indicator for relay action. On a call for heat, the relay is immediately activated, there is no delay. 4, Polycarbonate plastic enclosure, all wires lead out via 1/2” mounting nipple, it can be flexible mounting with your junction box / outlet box. Two screw mounting holes are convenient for you to fix it on the wall or wooden board. 5, Packing list: 1x relay module, 1x NPT 1/2” Zinc alloy conduit locknut, 2x M3x50mm screws. Electrical Specifications: * Voltage: 120 VAC * Resistive load: 22 Amp, Inductive load: 0.8 HP, FLA: 16, LRA: 42 * Control signal: 24 VAC / 40 mA / 1.2 VA * Transformer ratings: 24 VAC / 1.2 VA / Class 2 * Wire size: 12 AWG(red, black), 16 AWG(white, yellow, green, blue) * Ambient operating temperature: -20C to 60C * Net weight: 6.7 oz (190 g). NOTE: Not recommended for fast-cycling modulated regulation. For fast-cycling heating equipment, you may muse use Solid State Relay.

  • The F-1057 Electric Heating Relay is designed to control a AC 120V line voltage resistive load from a low voltage thermostat. The F-1057 relay has a built-in 24 V transformer and is compatible with 3-wire (R, C, W) thermostats as well as 2-wire (R, W) mechanical and battery-operated thermostats.
  • Replacement for any brand relay. Immediate relay activation provides improved temperature control and comfort. Easy to install, merely munted it on the side of existing junction box and attached the wires from the new thermostat.
  • LED indicator for relay action. On a call for heat, the relay is immediately activated, there is no delay.
  • Polycarbonate plastic enclosure, all wires lead out via 1/2” mounting nipple, it can be flexible mounting with your junction box / outlet box. Two screw mounting holes are convenient for you to fix it on the wall or wooden board.
  • Packing list: 1x relay module, 1x NPT 1/2” Zinc alloy conduit locknut, 2x M3x50mm screws.
  • NOTE: Not recommended for fast-cycling modulated regulation. For fast-cycling heating equipment, you may muse use Solid State Relay.
ASIN B0C4LXXYHK
Brand Name OONO
Unit Count 1.0 Count
Part Number F-1057
Coil Voltage 120 Volts
Contact Type Normally Open
Manufacturer CZH-LABS
Mounting Type Screw Mount
Connector Type Through Hole
Current Rating 22 Amps
Operation Mode Electric
Contact Material Silver, Copper, Or Alloy
Specification Met Ma
Included Components 1x relay module, 1x NPT 1/2” Zinc alloy conduit locknut, 2x M3x50mm screws.
Contact Current Rating 22 Amps
Upper Temperature Rating 60 Degrees Celsius
Maximum Switching Voltage 24 Volts
Minimum Switching Voltage 120 Volts

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