maintaining the original equipment’s performance curve

Automatic Diagnostics: The auto-reset function simplifies troubleshooting for recurring thermal limit trips versus manual lockouts

operating reliably across a 110-270 VAC range

this component provides the rigorous tolerance required for high-RPM air movement equipment

Its non-positional mounting design and universal bracket ensure a seamless fit in any orientation

Carrier HH12ZB190 Limit Switch maintaining the original equipment’s performanceThe Carrier HH12ZB190 Limit Switch is a critical OEM safety component engineered for HVAC high limit protection in gas furnaces and packaged units. As an automatic reset limit switch, this part is designed to open the electrical circuit when internal plenum temperatures reach 190F (cut out) and automatically close once the temperature drops to 150F (cut in). This Normally Closed (NC) switch features a 3 inch insertion length, ensuring accurate sensing