White-Rodgers 1E50N-301 Thermostat

The White-Rodgers 1E50N-301 Thermostat is a rugged, vertical-mount mechanical control engineered for 24V single-stage heating systems. As a veteran-preferred mercury-free replacement, this unit utilizes a dependable snap-action contact system to provide precise temperature regulation without the environmental liabilities of older bimetal models. Whether you are servicing gas, oil, or electric furnaces, its consistent footprint ensures a seamless swap-out for legacy 1E50 series controls. This model is also millivolt compatible, making it a versatile addition to any service truck for use with floor furnaces or wall heaters where 750mV power is present. The 1E50N-301 includes a temperature locking kit (F92-0563) to prevent setpoint tampering in commercial or rental properties, maintaining a tight 1°F heating differential for optimal equipment cycling. Designed for hardwired installation, the subbase features clear RH, W, and G terminal designations to simplify the wiring process on-site.

• Universal Application: Highly compatible with 24V gas, oil, electric, and millivolt heat-only systems.
• Snap-Action Reliability: Dust-protected switches provide clean make-and-break contacts for extended lifecycle performance.
• Tamper Resistance: Factory-included setpoint locking kit secures temperature ranges in public or high-traffic areas.
• Environmentally Compliant: Modern mercury-free construction meets all current state and federal disposal regulations.
• Professional Grade Design: Classic vertical form factor fits standard junction boxes for a clean, secure mount.

Can the 1E50N-301 control a cooling system?
No, this is a 1-stage heat-only thermostat designed specifically for heating applications and does not feature cooling terminals (Y).

Is this a direct replacement for the old 1E50-301 mercury model?
Yes, this mercury-free thermostat is the direct technician-recommended upgrade, maintaining the same vertical mounting and operational logic.

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.