White-Rodgers 3L11-120 Heating Snap Disc Limit Control

The White-Rodgers 3L11-120 Heating Snap Disc Limit Control is a compact, automatic-reset safety switch designed for heating controls. This SPST snap-disc limit control uses a bimetal disc to open on rise, delivering reliable over-temperature protection with Therm-O-Disc Type 36T21 construction and Style 10846 compatibility.

• Type and operation: Snap Disc Limit Control; Automatic Reset; 1-Pole SPST; Open/Close on Rise.
• Construction: Therm-O-Disc Type 36T21; Style 10846; compact dimensions 1.23" L × 1.32" W × 0.37" H; Bimetal disc size 1/2".
• Electrical ratings: 120/240 VAC; 15 A at 120 V (resistive); 10 A at 240 V (resistive); 3 A full load / 12 A locked rotor at 120 V; 1.5 A full load / 6 A locked rotor at 240 V (inductive).
• Temperature and response: Temperature rating 115–125°F; Differential 30°F.
• Certifications: UL and CSA approved; suitable for heating control applications and safety-compliant installations.

Designed for reliable long-term performance in heating equipment, this limit control provides precise temperature protection, simple mounting, and compliance with UL and CSA safety standards, making it a trusted replacement part in residential and commercial applications.