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CR-135EWT Heat Detector
Conventional
A cast aluminum housing encloses a standard THERMOFLEX® heat
detector making it suitable for use in hazardous locations including
those requiring detectors that are explosion proof, water and dust tight.
The suffix EWT denotes a unit that is suitable for areas described as:
• Class I, Groups C and D
• Class II, Groups E, F, and G
• Class III
• Applications requiring Special Purpose Enclosure Types
III, IV, and V, Weatherproof, Water-tight, and Dust-tight
(NEMA 4)
The EWT series meets the requirements of Division 1 “A location
where an explosive mixture of gas, vapor, dust, fibers or flyings, and
air may exist under normal operating conditions.” The EWT cast
aluminum enclosure is acceptable for locations requiring Weatherproof,
Water-tight and Dust-tight applications. Class II devices require Dust
tight enclosures. The EWT enclosure meets NEMA 4 and CSA IV
requirements.