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Disc Thermal Cut-Outs

ATC Semitec stock a range of snap-action 1/2″ disc-style thermostats from ASAHI which provide very reliable, thermal protection for domestic appliances and electronic circuits.

The typical application of a thermal cut-out is to keep a safe temperature below a particular threshold during abnormal operating conditions.  Also known as a thermal limiter or thermal switch, they normally open at high temperatures during a fault condition and then reset when the product temperature falls to a safe, predefined level.

These thermal switches can be configured with wide differentials to provide over-temperature protection as thermal cut-outs or thermal limiters.

Automatic reset, manual reset and electrical self-hold options make this a very flexible range of disc thermostats. One-shot, single operation bimetal thermal fuses and S.P.D.T. versions with “change-over” contacts are also now available.

From PEPI EAW there are also automatic reset, manual reset and electrical self-hold options which help to make this a very flexible range of disc thermostats.

Call us today on 01606 871680 to discuss your application’s thermal sensor requirements.  Using our extensive technical knowledge and innovative supplier base, we will work with you to provide the optimum solution for your product.

  • Asahi US-622 Snap Action 1/2
    ASAHI US-622 1/2" Disc Thermostats/Thermal Cut-Outs

    The Asahi US-622 disc thermostat is the workhorse control in the range.  Compact, high quality and competitively priced thermostats which can also be configured to operate as thermal cut-outs.

    • Calibration range: +10°C to +185°C (T200 housing)
    • Loads up to 16A/250VAC
    • Control, cut-out and one-shot options
  • Asahi US-603 Manual Reset 1/2
    ASAHI US-603 1/2"Disc Manual Reset Cut-outs

    Asahi’s US-603 manual reset thermal cut-out provides superior non-cycling thermal protection.  Various fixings and terminal types means the US-603 is a versatile thermal protector.

    • Temperature range: 50°C to 160°C
    • Non-cycling thermal protection
    • Switches loads up to 10A/250VAC
  • PEPI EAW SO Self-Hold Thermal Cut-Out

    Self -hold snap action temperature limiter device.

    • Range -5°C/+200°C (T300 Rated)
    • Loads up to 16A/250VAC
    • Snap action
    • Internal heater stops auto-resetting
  • PEPI EAW KB Manual Reset 1/2" Disc Thermostat

    A1/2″ disc thermal cutout with manual reset function

    • Snap action contacts, open on temperature rise
    • Range 50°C to 190°C (T200 Rating)
    • Loads up to 16A/250VAC
  • Asahi 1/2
    ASAHI US-628 Waterproof Thermostats

    ASAHI US-628 disc thermostats are encapsulated, waterproof versions with integral lead-wires.  They have an automatic reset function and are available with normally-open or normally-closed contacts.

    • IP67 rated drip-proof housing
    • Max operating temperature 130˚C
    • Loads up to 5A/250VAC