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Features

  • Double Pole Single Throw (DPST)
  • Automatic Reset or Manual Reset/Trip Free
  • Heavy Duty Capacity - up to 48 amperes per pole on 20493
  • Snap-Action resists shock and vibration regardless of mounting position
  • UL Recognized for USA and Canada (20490 only)
  • Tamperproof – temperatures are factory set to customer requirements
  • Molded Phenolic Case – UL V-0 rated material which seals out lint, dust, and other contamination
  • High Reliability

Specifications

Contact Operations Automatic Reset (100K cycles) or Manual Reset/Trip Free (6K cycles)
Operating Temperature 0-300°F (Automatic Reset) and 100-300°F (Manual Reset)
Terminal Configurations 0.250” X 0.032” flat, 45°, 90° male quick connect
0.187” X 0.032” 90° male quick connect
#8-32NC flat and 45° screw terminals
#10-24 45° screw terminals (20493 only)

 

Reset Type Auto Reset
(100,000 Cycles/Pole)
Manual Reset
(6,000 Cycles/Pole)
Series 20490 20491 20492 20493
Resistive 25 amperes at 240 VAC 25 amperes at 600 VAC 25 amperes at 600 VAC 48 amperes at 600 VAC
Motor Load 10 FLA-60 LRA at 120 VAC
5 FLA-30 LRA at 240 VAC
4 FLA-8 LRA at 480 VAC 10 FLA-60 LRA at 120 VAC
5 FLA-30 LRA at 240 VAC
16 FLA-96 LRA at 120 VAC
8 FLA-48 LRA at 240 VAC
Pilot Duty 125 volt-amperes at 120 VAC 690 volt-amperes at 240 VAC
to 480 VAC
690 volt-amperes at 240/600 VAC
480 volt-amperes at 120 VAC
690 volt-amperes at 240/600 VAC
480 volt-amperes at 120 VAC