White-Rodgers 3L01-230 Limit Switch

The White-Rodgers 3L01-230 is a high-performance 3/4-inch snap disc limit control designed for precise thermal regulation in HVACR systems. This fixed temperature limit switch features an Open on Rise action, specifically engineered to break the electrical circuit when temperatures reach the 230°F cut-out point and automatically reset once the system cools to the 190°F cut-in threshold. Built for reliability in the field, this SPST automatic reset limit switch utilizes a Therm-O-Disc 60T11 type (style 610021) for high-speed contact separation and long-term durability. The unit includes a 3/4-inch flanged airstream mount with a stainless steel loose ring bracket to ensure OEM compatibility with standard mounting holes. Ideal for heating applications including furnaces, blowers, and wood stoves, the 3L01-230 provides critical high-limit safety protection, maintaining system integrity under demanding operational conditions.

• Universal Compatibility: Designed for quick on-job replacement with mounting holes that match standard snap disc footprints.
• Automatic Reset: Eliminates manual intervention by re-engaging the circuit once temperatures return to the 190°F safety margin.
• Rugged Construction: Features an aluminum disc cup and stainless steel brackets for superior thermal response and corrosion resistance.
• Clear Identification: White-Rodgers naming convention simplifies selection; the "L" signifies limit control and the last three digits indicate the specific 230°F cut-out.

• How do I verify the switch action? This model is an "Open on Rise" switch, meaning it acts as a safety limit by breaking the circuit when it gets too hot.
• Does this include mounting hardware? It features a flanged airstream mount with a loose ring bracket, making it compatible with most standard 3/4-inch disc applications.
• Can this be used for fan control? No, this is a limit control ("L" series). Fan controls ("F" series) typically "Close on Rise" to activate the blower.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.