White-Rodgers 3L09-11 Heating Limit Control

The White-Rodgers 3L09-11 Heating Limit Control is a reliable, board-mount limit switch designed to protect heating systems with precise temperature control. Built around a Therm-O-Disc Type 36T in Style 612719 and featuring a 1/2 inch bimetal disc, this unit delivers consistent open/close temperatures for safer operation and easy panel integration.

Key specifications include voltage ratings of 120/240/277 VAC (resistive) and 120/240 VAC (inductive), with current ratings of 15 A at 120V, 13 A at 240V, and 9.3 A at 277V (resistive). It supports 34.8 A locked rotor at 120V and 13 A locked rotor at 240V (inductive). The device measures 3.12 inches in length and uses a 1/2 inch bimetal disc. Temperature setting on the panel is L210-40F, with open/close temperatures of 210°F / 170°F, providing reliable protection for heating circuits.

Designed for board-mount installation, the White-Rodgers 3L09-11 is a trusted component for safeguarding furnaces, boilers, and other heating equipment while ensuring consistent performance.

• Board-mount installation with a 3.12" body
• Therm-O-Disc Type 36T, Style 612719
• Voltage: 120/240/277 VAC (resistive) and 120/240 VAC (inductive)
• Current ratings: 15 A @120V, 13 A @240V, 9.3 A @277V (resistive)
• Open/Close: 210°F / 170°F; Panel setting: L210-40F