Robertshaw 500-410 Mechanical Wall Thermostat 24V

Product Description

The ROBERTSHAW 500-410 is a 24-volt AC mechanical wall thermostat designed for heating applications in residential, commercial, and institutional buildings. It mounts horizontally on a standard wall surface and operates on low-voltage control wiring. The thermostat covers a temperature range of 50 to 90 degrees F and carries a cycling contact current rating of 1.2 amps, with fan and system switch contacts rated at 2 amps. The heating current is adjustable from 0.3 to 1.2 amps, making it suitable for a range of heating system load requirements. Licensed HVAC technicians and building maintenance professionals are the primary installers for this type of control.

The 500-410 is intended for low-voltage heating control in forced-air and hydronic heating systems across light commercial, institutional, and residential settings. Its mechanical design makes it straightforward to wire and calibrate without specialized tools. The horizontal wall-mount configuration fits standard junction box locations and suits typical thermostat rough-in installations. Applications span single-stage heating systems where a reliable, no-frills mechanical thermostat is specified or preferred over programmable electronic units.

Key Features

• 24-volt AC operation for standard low-voltage heating control circuits
• Temperature range of 50 to 90 degrees F
• Cycling contact rated at 1.2 amps for reliable switching
• Fan and system switch contacts rated at 2 amps
• Adjustable heating current from 0.3 to 1.2 amps
• Horizontal mechanical wall-mount design for straightforward installation

Compatibility

Designed as an OEM-style replacement or new-installation mechanical thermostat for single-stage 24-volt AC heating systems in residential, commercial, and institutional applications.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with applicable local codes and the NEC for low-voltage wiring. Power down the heating system and confirm low-voltage circuit de-energization before disconnecting or connecting thermostat wiring. Mount the unit level on the wall at standard thermostat height, away from drafts, direct sunlight, and heat sources that could cause false readings. Do not exceed the rated contact current values listed for cycling, fan, system switch, or heating circuits.

Technical Specifications

• Voltage Rating: 24 volts AC
• Current Rating (Cycling Contact): 1.2 amps
• Current Rating (Fan and System Switch): 2 amps
• Current Rating (Heating, Adjustable): 0.3 to 1.2 amps
• Temperature Range: 50 to 90 degrees F
• Thermostat Type: Mechanical Wall, Horizontal
• Application: Commercial, Residential, Institutional
• Series: 500

Standard Information

• Brand: ROBERTSHAW
• Manufacturer Part Number: 500-410