Robertshaw 700-705 High Temp Energy Cut-off Switch

Product Description

The ROBERTSHAW 700-705 is a high-temperature energy cut-off switch designed to add an automatic gas shutoff function to heating systems equipped with a standing pilot assembly. It operates in series connection with the thermocouple of the automatic pilot circuit, monitoring system temperature and interrupting gas flow when a high-temperature limit condition is detected. This device is part of the 700 Series HT-3 product line and is typically installed by licensed HVAC technicians or gas appliance service professionals during routine safety upgrades or system service calls.

This switch is suited for residential and light commercial gas appliance applications where an additional high-temperature limit safeguard is required. It integrates into the existing pilot-thermocouple circuit, making it applicable in systems such as gas furnaces, boilers, water heaters, and similar standing-pilot gas appliances that require a safety shutoff at elevated temperatures. Installation is performed as part of the gas valve and pilot safety circuit assembly.

Key Features

• Operates in series with the thermocouple circuit for automatic pilot safety systems
• Provides high-temperature limit automatic gas shutoff protection
• Part of the established 700 Series HT-3 product line
• Designed for series connection — no parallel wiring required
• Compact safety device suitable for integration into existing pilot assemblies

Compatibility

Designed as an OEM-style replacement or add-on safety device for gas appliances utilizing a standing pilot and thermocouple-based automatic pilot circuit.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified gas appliance service professional in accordance with local codes and the appliance manufacturer's instructions. Shut off the gas supply and allow the appliance to cool completely before beginning any service work. The device is wired in series with the thermocouple circuit — verify correct polarity and connection integrity before restoring gas and relighting the pilot. Refer to applicable IFGC guidelines for gas appliance safety device requirements in your jurisdiction.

Technical Specifications

• Series: 700 Series HT-3
• Function: High-temperature energy cut-off switch
• Circuit Connection: Series with thermocouple automatic pilot circuit
• Application: Automatic gas shutoff at high-temperature limit

Standard Information

• Brand: ROBERTSHAW
• Manufacturer Part Number: 700-705