USED UNITED ELECTRIC F7G 89 8442 (OR F7G‑89/8442 SERIES)

1. General Overview
Manufacturer: United Electric
Manufacturer: United Electric
Model: F7G 89 8442 (or F7G‑89/8442 series)
Model: F7G 89 8442 (or F7G‑89/8442 series)
Type: Temperature switch / thermostatic control switch
Type: Temperature switch / thermostatic control switch
Function: Monitors and reacts to temperature changes in a system (opens/closes contacts when setpoint is reached)
Function: Monitors and reacts to temperature changes in a system (opens/closes contacts when setpoint is reached)
Temperature Range: Approximately ‑125 °F to +425 °F (as per user spec)
Temperature Range: Approximately ‑125 °F to +425 °F (as per user spec)
Typical Applications: Industrial heating systems, HVAC, process control, machinery temperature safety cut‑outs, boilers, steam systems, oil/gas equipment
Typical Applications: Industrial heating systems, HVAC, process control, machinery temperature safety cut‑outs, boilers, steam systems, oil/gas equipment
2. Key Features
Wide operating temperature span (down to ‑125 °F, up to +425 °F) for extreme‑environment use
Wide operating temperature span (down to ‑125 °F, up to +425 °F) for extreme‑environment use
Rugged industrial build suited for harsh service conditions
Rugged industrial build suited for harsh service conditions
Adjustable or preset set‑point (depending on variant)
Adjustable or preset set‑point (depending on variant)
Reliable switching action — stable contact actuation at the designated temperature
Reliable switching action — stable contact actuation at the designated temperature
Compact size for integrating into control enclosures, panels or machinery
Compact size for integrating into control enclosures, panels or machinery
Suitable for systems requiring temperature monitoring and safety shut‑off
Suitable for systems requiring temperature monitoring and safety shut‑off
3. Technical Specifications
Switch Function: Temperature‑actuated switch (single or dual contacts depending on variant)
Switch Function: Temperature‑actuated switch (single or dual contacts depending on variant)
Temperature Range: From approx. ‑125 °F (‑87 °C) up to +425 °F (+218 °C)
Temperature Range: From approx. ‑125 °F (‑87 °C) up to +425 °F (+218 °C)
Set‑Point Adjustment: External dial or internal mechanism (variant dependent)
Set‑Point Adjustment: External dial or internal mechanism (variant dependent)
Contact Configuration: May be SPDT (Single‑Pole Double‑Throw) or other, check variant
Contact Configuration: May be SPDT (Single‑Pole Double‑Throw) or other, check variant
Electrical Rating: Rated for industrial loads — consult spec for maximum voltage/current
Electrical Rating: Rated for industrial loads — consult spec for maximum voltage/current
Media/Environment: Designed for ambient/immersion mounting as specified (check sensor bulb or capillary length)
Media/Environment: Designed for ambient/immersion mounting as specified (check sensor bulb or capillary length)
Mounting: Panel, bracket or surface mount based on style
Mounting: Panel, bracket or surface mount based on style
4. Construction Materials & Environment
Enclosure: Rugged metal housing (industrial grade)
Enclosure: Rugged metal housing (industrial grade)
Sensing Element: Thermostat/thermostatic element (bimetal, capillary, or bulb) capable of wide temperature span
Sensing Element: Thermostat/thermostatic element (bimetal, capillary, or bulb) capable of wide temperature span
Contacts & Internals: Industrial‑grade contacts designed for frequent actuation and high reliability
Contacts & Internals: Industrial‑grade contacts designed for frequent actuation and high reliability
Seals & Gaskets: Suitable for high‑temperature service; resistant to thermal cycling
Seals & Gaskets: Suitable for high‑temperature service; resistant to thermal cycling
5. Installation & Connection Details
Mounting orientation: As recommended by manufacturer — ensure proper sensing element placement
Mounting orientation: As recommended by manufacturer — ensure proper sensing element placement
Electrical connections: Terminal block or screw terminals; wiring must suit the rating
Electrical connections: Terminal block or screw terminals; wiring must suit the rating
Ensure system is powered off during installation
Ensure system is powered off during installation
Calibration or set‑point verification: After installation check switch actuates at desired temperature
Calibration or set‑point verification: After installation check switch actuates at desired temperature
Environment: Ensure unit is not exposed to conditions beyond its rated range (extreme shock, vibration, chemical exposure)
Environment: Ensure unit is not exposed to conditions beyond its rated range (extreme shock, vibration, chemical exposure)
6. Compliance & Certifications
Manufacturer’s industrial certification (UL/CSA/CE) — verify variant spec sheet
Manufacturer’s industrial certification (UL/CSA/CE) — verify variant spec sheet
Designed to meet industrial temperature‑switching performance and safety standards
Designed to meet industrial temperature‑switching performance and safety standards
Suitable for use in commercial/industrial control systems
Suitable for use in commercial/industrial control systems