Thermostats
D1 Model

These temperature controls, with normally closed contacts, open on temperature rise, and are suitable for controlling the temperature of a wide variety of electrically heated liquids, solids, surfaces air and other gases. These thermostats may be used in ovens, cleaning baths, platens, pipelines and sterilizing equipment, to name only a few. The expansion and contraction of the fluid in the sensing bulb controls the temperature of these thermostats.

  1. D1 Model with Moisture Resistant Enclosure
  2. D1 Model with General Purpose Enclosure
  3. D1 Model less Enclosure
Therm-Coil
Drawing Number
Model Number Enclosure / Pilot Light Capillary Tube Length Bulb Size Temperature Range
337T-1403-005 D1-5572-K No Enclosure / No Pilot Light 84” 1/4” x 7” 200°-550° F
337T-1404-005 D1-5572-KP No Enclosure / Pilot Light 84” 1/4” x 7” 200°-550° F
337T-1405-005 D1-5572-KE Enclosure / No Pilot Light 84” 1/4” x 7” 200°-550° F
337T-1406-005 D1-5572-KEP Enclosure / Pilot Light 84” 1/4” x 7” 200°-550° F
337T-1407-005 D1-5572-KWP Moisture Resistant Enclosure 84” 1/4” x 7” 200°-550° F
337T-1403-006 D1-7071-K No Enclosure / No Pilot Light 84” 5/16" x 5" 300° - 700° F
337T-1404-006 D1-7071-KP No Enclosure / Pilot Light 84” 5/16" x 5" 300° - 700° F
337T-1405-006 D1-7071-KE Enclosure / No Pilot Light 84” 5/16" x 5" 300° - 700° F
337T-1406-006 D1-7071-KEP Enclosure / Pilot Light 84” 5/16" x 5" 300° - 700° F
337T-1407-006 D1-7071-KWP Moisture Resistant Enclosure 84” 5/16" x 5" 300° - 700° F
337T-1403-007 D1-2574-K No Enclosure / No Pilot Light 84” 1/4" x 5 5/32" 60° - 250° F
337T-1404-007 D1-2574-KP No Enclosure / Pilot Light 84” 1/4" x 5 5/32" 60° - 250° F
337T-1405-007 D1-2574-KE Enclosure / No Pilot Light 84” 1/4" x 5 5/32" 60° - 250° F
337T-1406-007 D1-2574-KEP Enclosure / Pilot Light 84” 1/4" x 5 5/32" 60° - 250° F
337T-1407-007 D1-2574-KWP Moisture Resistant Enclosure 84” 1/4" x 5 5/32" 60° - 250° F
Therm-Coil
Drawing Number
Model Number Enclosure / Pilot Light Capillary Tube Length Bulb Size Temperature Range
337T-1408-001 D3-2571-K No Enclosure / No Pilot Light 84” 3/8" x 4 5/16" 60° - 250° F
337T-1409-001 D3-2571-KP No Enclosure / Pilot Light 84” 3/8" x 4 5/16" 60° - 250° F
337T-1410-001 D3-2571-KE Enclosure / No Pilot Light 84” 3/8" x 4 5/16" 60° - 250° F
337T-1411-001 D3-2571-KEP Enclosure / Pilot Light 84” 3/8" x 4 5/16" 60° - 250° F
337T-1412-001 D3-2571-KWP Moisture Resistant Enclosure 84” 3/8" x 4 5/16" 60° - 250° F
337T-1408-002 D3-5571-K No Enclosure / No Pilot Light 84” 3/8" x 3 1/2" 200 ° - 550° F
337T-1409-002 D3-5571-KP No Enclosure / Pilot Light 84” 3/8" x 3 1/2" 200 ° - 550° F
337T-1410-002 D3-5571-KE Enclosure / No Pilot Light 84” 3/8" x 3 1/2" 200 ° - 550° F
337T-1411-002 D3-5571-KEP Enclosure / Pilot Light 84” 3/8" x 3 1/2" 200 ° - 550° F
337T-1412-002 D3-5571-KWP Moisture Resistant Enclosure 84” 3/8" x 3 1/2" 200 ° - 550° F
Non-Inductive Rating
Resistive Load Per Pole 120V-277V: 30 Amps
Total Resistive Load 480V (D1 Models Only): 21 Amps