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Provide line voltage control of heating, cooling and ventilating systems in farm buildings, storage areas and industrial environments; watertight, dust-proof enclosure.


  • Use in barns, brooder houses, poultry houses, hog barns, pump houses, milk houses, crop storage houses and industrial environments. NEMA 4X enclosure protects thermostat and wiring connections from oil, water, dust, and corrosion.
  • Clear plastic cover reveals setpoint, discourages tampering.
  • Sensing element externally mounted for fast response and tin plated to resist corrosion.
  • Reliable snap switches sealed against contamination.
  • Insulated case has internal grounding screw for safety.
  • Meet National Electrical Code Article 547-4 requirements.
  • Easy mounting with screws through holes in flanges on case.

Product Specifications

Hazmat Information
UN 1294, TOLUENE, 3, II
Provide line voltage control of heating, cooling and ventilating systems in farm buildings or storage areas
Dimensions (in.)
5 in. high x 6 1/2 in. wide x 3 in. deep
Dimensions (mm)
127 mm high x 165 mm wide x 76 mm deep
Internal Setpoint Adjustment
Item Type
50 Hz; 60 Hz
Approvals, Underwriters Laboratories Inc.
File No. E4436 Vol.1 Sec. UL Guide XAPX
Approvals, Canadian Standards Association
Certified: File No. LR1620, Guide No. 400-E-O
Contact Ratings
24 Vac-- 2.0A AFL; 120 Vac-- 7.4 AFL, 44.4 ALR; 240 Vac-- 3.7 AFL, 22.2 ALR
24 Vac or 120/240 Vac
Setpoint Temperature Range (F)
35 F to 100 F
Operating Temperature Range (F)
145 F Maximum
Operating Temperature Range (C)
63 F Maximum
Sensor Element
Coiled, Tin-plated Copper Tube
Differential Temperature (F)
2 F
Differential Temperature (C)
1.1 C
Interstage Differential Temperature (C)
0 C to 4 C adjustable
Interstage Differential Temperature (F)
0 F to 7 F adjustable
Gray finish
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