Ruffneck Explosion-Proof SPST Thermostat for FX Series Forced Air Unit Heaters

Description

Product Summary
Ruffneck Defender XT-311 and XT-312 explosion-proof heavy-duty thermostats are the smallest, lightest, and most durable thermostats available. These thermostats are designed to control heating only, cooling only, or ventilation systems in demanding industrial applications. These include oil refineries, petrochemical plants, pulp and paper mills, coal mines, grain elevators, hazardous waste storage facilities, and other hazardous locations where specific explosive gases or dust are present. For hazardous-location temperature controls, rely on Defender thermostats for the most dependable and trouble-free service available. Ruffneck Defender XT-311 and XT-312 thermostat?s unique and highly engineered design offers outstanding features and benefits. Specifications Temperature range 36°F to 82°F (2°C to 28°C) Temperature differential 2.5 F° (1.5 C°) Net weight 2.1 lbs (0.95 kg) Switching Snap acting Conduit opening 3/4? - 14 NPT Electrical Rating 22 amps Res, 480 Vac Max; 1/2 HP 125 Vac, 1 HP 250 Vac Class I, Division 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 Available in Two Models XT-311 (Feed-Through, Single Pole, Single Throw) For heating-only applications. XT-312 (Feed-Through, Single Pole, Double Throw) For heating or cooling/ventilation applications
Features + Benefits
All-aluminum exterior
No breakable external plastic parts
No exposed copper or brass
Corrosion resistant, suitable for H2 S environments
Compact & lightweight
More competitively priced
CFC & mercury free
Environmentally safe, no leveling required ®
3-year warranty: the longest trouble-free warranty in the industry
Precision die-cast components
Greater consistency, better quality
Bimetal sensing element
Fast-acting, reliable, unaffected by altitude
No delicate coils or bellows
Rugged reliability
480 Vac maximum
Wider range of applications