White-Rodgers 3L09-6 Heating Limit Control

The White-Rodgers 3L09-6 Heating Limit Control provides dependable overheat protection for heating systems. This Therm-O-Disc based limit switch (Type 36T, Style 612710) is designed for board-mounted installation, delivering precise temperature response and long service life. The compact 3.12" body and 1/2" bimetal disc enable quick cycling with minimal footprint, while a rugged mounting design ensures reliable operation in demanding environments.

With a versatile voltage range suitable for 120/240/277 VAC applications, it supports both resistive and inductive loads to cover boilers, furnaces, and electric heaters. The device is built for durability, offering solid current handling and protective features that help prevent heat-related failures.

Key specs at a glance:

• Mounting: Board-mount design for easy retrofits and maintenance
• Physical: Length 3.12 inches; 1/2 inch bimetal disc
• Electrical ratings: 120/240/277 VAC (resistive); 120/240 VAC (inductive); 15 A @120V; 13 A @240V; 9.3 A @277V (resistive); inductive ratings: 5.8 A full load, 34.8 A locked rotor @120V, 13 A locked rotor @240V
• Pilot duty: 125 VA
• Temperature: Open at 170°F, closed at 130°F; panel setting L170-40F

Choose the White-Rodgers 3L09-6 for dependable, safety-focused temperature control in heating systems.