Robertshaw 5300-402 Electric Thermostat

The Robertshaw 5300-402 Electric Thermostat delivers precise temperature control for heating systems. This RX Direct Current Millivolt Thermostat uses direct current millivolt technology and comes with a 24" capillary, enabling a 200-400F range.

Designed for residential and light commercial HVAC, this electric thermostat works with electric heating elements and hydronic controls, delivering stable temperature control and dependable performance. The compact, field-proven design simplifies installation in tight spaces, and the 24-inch capillary makes it versatile for various furnace or boiler configurations.

• 24" capillary length provides flexible mounting and placement
• Direct current millivolt sensing delivers precise, steady readings
• Wide temperature range: 200–400°F for versatile heating control
• Rugged construction designed for long-term reliability in HVAC applications
• Easy installation with standard wiring for quick setup in electric or hydronic systems

With its precise sensing and durable build, the 5300-402 is a smart choice for upgrades in homes or light commercial settings, helping improve system responsiveness, comfort, and energy efficiency across seasons.