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The KNOX SALES COMPANY SK 230033 is a single-pole thermodisc with a high-limit overheat safety function, designed to interrupt electrical circuits when a preset temperature threshold is exceeded. This type of device acts as a thermal cutout, protecting heating equipment from damage caused by overtemperature conditions. It is commonly installed in residential and light commercial heating appliances, including electric furnaces, baseboard heaters, and similar resistive heating units. Licensed HVAC technicians and electricians are the primary trades that install and service this component.
This thermodisc is suited for applications where a reliable, single-pole thermal cutoff is required to guard against runaway heat conditions. It is typically mounted directly to a heat source or heating element housing, sensing surface temperature and opening the circuit if the high-limit setpoint is reached. Its compact disc form factor fits into standard heating appliance control cavities without requiring significant modification to the existing assembly.
Designed as an OEM-style replacement for single-pole high-limit thermodisc safety devices used in residential and light commercial electric heating appliances.
Installation should be performed by a licensed HVAC technician or electrician. Always disconnect and lock out power to the appliance before removing or installing a thermodisc. The device must be mounted flush to the designated sensing surface to ensure accurate temperature response. Follow applicable NEC guidelines for electrical disconnection and reconnection procedures.
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