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Dwyer Model 862E Explosion-Proof, Heavy Duty Thermostat

Line or Low Voltage, Heating or Cooling

Explosion-proof, heavy duty, the Model 862E Thermostat is designed for hazardous-location temperature control. It is the most dependable, smallest, lightest and most durable thermostat available. The 862E is designed to control heating, cooling, or ventilation systems and features an adjustable set point knob for easy and convenient setpoint adjustment. The thermostat incorporates reliable snap action switch operation in SPDT configuration rated to 480 VAC max.

Oil refineries, petrochemical plants, pulp and paper mills, coal mines, grain elevators, hazardous waste water storage facilities, other hazardous locations where specific explosive gases or dusts are present.

Service: Compatible gases.
Temperature Limit: -49 to 176°F (-45 to 80°C).
Enclosure Rating: Explosion-proof NEMA 7 & 9, Class I, Divisions 1 & 2, Groups C & D; Class II, Division 1, Groups E, F & G; Class II, Division 2, Groups F & G; Class III; Class I, Zones 1 & 2, Groups IIA & IIB.
Switch Type: SPDT snap action switch.
Electrical Rating: 22 A @ 480 VAC (res.), 1/2 HP @ 125 VAC, 1 HP @ 250 VAC.
Electrical Connection: Screw terminal.
Conduit Connection: 3/4˝ female NPT.
Set Point Adjustment: External knob.
Adjustable Range: 36 to 82°F (2 to 28°C).
Deadband: 2.5°F (1.5°C).
Weight: 2.1 lb (0.95 kg).
Approvals: UL and CSA pending.
• Explosion-proof enclosure
• No exposed copper or brass
• Compact and lightweight
• CFC & mercury free
• Precision die-cast components
• Bimetal sensing element
• Corrosion resistant suitable for H2S environments
• Fast acting, reliable, unaffected by altitude
Model Number Description Lead Time
 862E Explosion-proof, heavy-duty thermostat. Normally Stocked