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