Therm-O-Disc > Products > Bimetal Controls & Limits

30M Manual Reset Bimetal Motor Protector

The 30M manual reset motor protector from Therm-O-Disc® offers accurate and reliable protection against hazardous overheating in single phase/single voltage A/C motors.  Provided in a compact, versatile, cost-effective design the snap action of the bimetal disc provides high-speed contact separation resulting in excellent life cycle characteristics at electrical loads up to 50 amps locked rotor at 120VAC and 37 amps locked rotor at 240VAC.  The 30M is UL recognized and CSA certified.  The most common application is a  disposer where “tripping” the device should result in the end user taking corrective action.
Features
  • Single pole, single throw
  • M1 “trip free” manual reset switching action
  • High-speed contact separation
  • Wide selection of bimetal disc and heater combinations available
  • Current and temperature responsive
  • Weld terminals standard
  • Male quick connect terminals and lead wire assemblies available
Temperature Calibration
  • Maximum calibration temperature 302°F (150°C)
  • Temperature  differentials (difference between nominal open and close temperatures) available
    • Minimum 86°F (30°C)
    • Maximum 122°F (50°C)
  • See data sheet (Product Download Tab) for detailed temperature calibration information
Applications
  • Disposer
  • Electric Motors
Product Downloads30M Product Bulletin
Agency Ratings
  • UL/CSA
    • 120V/50 amps L.R./6,000 cycles
    • 240V/37 amps L.R./ 6,000 cycles
  • See data sheet (Product Download Tab) for detailed ratings information