White-Rodgers 90-340 Switching Relay

The White-Rodgers 90-340 is a 24 VAC coil, two-pole double-throw (DPDT) switching relay designed for fan control centers and general HVAC or appliance switching applications. This semi-enclosed relay provides two sets of power-rated contacts, allowing it to control multiple circuits simultaneously while maintaining reliable electrical isolation. With a continuous duty coil design, quick-connect terminals, and strong inductive load ratings, the 90-340 is widely used for blower motors, pumps, and general purpose switching in heating and air conditioning systems.

Features

Manufacturer: White-Rodgers (Emerson)
Part Number: 90-340
Device Type: Switching / fan relay
Pole / Throw: DPDT (Two Pole Double Throw)
Coil Voltage: 24 VAC, 50/60 Hz
Coil Characteristics: Approx. 334 mA draw, ~9.5 VA nominal, ~22 VA inrush
Coil Resistance: Approx. 17.5 ohms
Contact Ratings:
- 12 FLA / 60 LRA @ 125 VAC
- 6 FLA / 35 LRA @ 240-277 VAC
- 15 A resistive @ 277 VAC
- Up to 1/2 HP @ 125/250 VAC
Temperature Range: Approx. -40 °F to 130 °F
Terminal Type: Quick-connect tabs
Duty Rating: Continuous duty coil design
Typical Applications:
- HVAC fan / blower control
- Heating and cooling equipment
- Vending machines and appliances
- General purpose switching circuits

HKZ1700189

Collection: White Rodgers

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90-340 - 24V DPDT Fan Relay, 2 Pole Switching Relay