 Thermostats
The next generation of explosion-proof thermostats
Defender® explosion-proof, heavy-duty thermostats are the smallest, lightest,
and most durable thermostats available. They 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 dusts are present.
For hazardous-location temperature controls, rely on Defender® Thermostats
for the most dependable, trouble-free service available. The Defender
Thermostat's unique and highly engineered design offers outstanding features and
benefits.
More Features...More
Benefits.
- all-aluminum exterior
- no breakable external plastic parts
- no exposed copper or brass
- corrosion resistant, suitable for H2S environments
- compact & lightweight
- more competitively priced
- CFC & mercury free
- environmentally safe, no leveling required
- 3-year warranty
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- 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 max.
- wider range of applications
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Available in two models...
XT-211 (Feed-Thru, Single Pole, Single Throw)...for heating-only
applications.
XT-212 (Feed-Thru, Single Pole, Double Throw)...for heating or
cooling/ventilation applications.
SPECIFICATIONS
Temperature range: 36oF
to 82oF (2oC to 28oC)
Temperature differential: 2.5oF (1.5oC)
Net weight: 2.1 lbs. (0.95 kg)
Switching: Snap acting
Conduit opening: 3/4" - 14 NPT
Enclosure: NEMA Type 7 & 9
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ELECTRICAL
RATING
22 Amps Res., 480 VAC
Max.; 1/2 HP @ 125 VAC, 1 HP @ 250 VAC
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
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APPROVALS
U.L. Listed &
C.S.A. Certified
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PATENTS
Pat. 08/583,929
USA
Pat. Pending 2,151,641 CAN
Des. Pat. 376,109 USA; Rd. 1996, 78975 CDN
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