Honeywell T675A1508 Remote bulb Commercial Temperature Controller, 0 F to 100 F, 5 ft. capillary, Copper bulb sensing element

The Honeywell T675A1508 Remote bulb Commercial Temperature Controller, 0 F to 100 F, 5 ft. capillary, Copper bulb sensing element is a Honeywell temperature controller for HVAC repair and replacement work. Use it when the part number T675A1508 and the listed specifications match the equipment being serviced.

Remote bulb thermostats regulate temperature of air or liquids in ducts, pipes, tanks and boilers. Specifications • Application: Regulates temperature of air or liquids in ducts, pipes, tanks and boilers• Output Type: Relay• Type: Remote Bulb• Output: SPDT• Voltage: 120 Vac or 240/277 Vac• Frequency: 50, 60 Hz• Dimensions: 5-5/8 in. high x 2 in. wide x 2-5/8 in. deep• Sensor Element: Copper bulb• Number of Sensor Inputs: 1 Features • Suitable for applications requiring temperature control of air or liquids where controller must be placed outside the sensing area. • Typical uses include control of dampers and valves in heating, cooling and…

Key Specs

• Voltage: 277v, 120v, 240v
• Includes: 107324A Duct Bulb Holder
• Differential: 3° to 10°F
• Application: Remote Bulb Temperature, Commercial
• Sensor Type: Copper Bulb
• Capillary Length: 5 ft.
• Contact Ratings 120v: 48.0 ALR, 8.0 AFL
• Contact Ratings 240v: 5.1 AFL, 30.6 ALR
• Height: 5-5/8"
• Width: 2"
• Product Type: Temperature Controller

Replacement Notes

Captured replacement references include 1687-9. Confirm supersession details against the manufacturer parts list.

Expert Verdict

Reviewed by the SuperArbor Pro Desk: choose this part when the existing component label and unit documentation match T675A1508 and the spec set above. It is best suited for targeted HVAC service repairs where exact fitment matters more than broad universal compatibility.

FAQs

What is the Honeywell T675A1508 used for?

It is a temperature controller for compatible Honeywell HVAC equipment. Match the part number T675A1508 and the equipment service literature before ordering or installing.

Which specs should I verify before purchase?

Verify the spec set shown for this part: Voltage: 277v, 120v, 240v; Includes: 107324A Duct Bulb Holder; Differential: 3° to 10°F; Application: Remote Bulb Temperature, Commercial; Sensor Type: Copper Bulb; Capillary Length: 5 ft.. The replacement should match the existing component and the unit documentation.

Does the electrical rating need to match exactly?

Yes. Confirm voltage rating 277v, 120v, 240v against the failed component label. Do not substitute a different rating unless the equipment manufacturer allows it.

Are replacement or superseded references available?

Captured cross-reference data includes 1687-9. Verify any supersession directly against the manufacturer parts list before installation.

Who should install this HVAC component?

A qualified HVAC technician should install and test the temperature controller. Disconnect power first, follow lockout procedures, and confirm safe operation after replacement.

Safety and Installation Notes

Disconnect power before service. HVAC electrical and combustion-related components should be installed and tested by a qualified technician. After installation, confirm wiring, mounting, airflow or fluid routing as applicable, and normal system operation.