Murphy 130-250F Temperature Swichgage 2.5 in. with 16 Ft Capillary and Snap-Acting Switch - Explosion-Proof - A25TE-EXUD-250-16-M10


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0.91 LBS
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The Murphy 130-250F Explosion-Proof Temperature Swichgage 2.5" with 16 Ft Capillary and Snap-Acting Switch A25TE-EXUD-250-16-M10 is a diaphragm-actuated, temperature-indicating gage with built-in electrical switch for tripping alarms and/or shutdown devices. This rugged, built-to-last instrument is fully sealed from the environment by the unique combination of a polycarbonate case and lens, a polished stainless steel bezel, and O-ring seals. This vapor actuated gauge features a sealed capillary tube and a sensing bulb. When subjected to heat, the liquid in the sensing bulb changes to vapor creating pressure against a diaphragm mechanism. The diaphragm translates this vapor pressure into a mechanical gage reading. This A25TE-EXUD-250-16-M10 also features an internal SPDT snap-switch, instead of the single pole/pointer contact(s). When the switch closes on rising temperature, it becomes Set. As temperature decreases the switch Resets.

The gage pointer acts as a temperature indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contact(s) are isolated from ground. They have self-cleaning motion to enhance electrical continuity. Applications for A25 series temperature swichgage instruments include: engines and equipment in oil field, marine, irrigation, construction and trucking industries. Monitoring engine coolant temperature, crankcase oil and transmission oil.


  • 2-1/2 inch/64 mm dial
  • O-ring Seals
  • Polished Stainless Steel Bezel
  • Corrosion Resistant Polycarbonate Case
  • Indicating Gage and Limit Switch
  • Switch Can Activate Alarms and/or Shut Down Equipment
  • Contact(s) Isolated From Ground
  • Internal Snap-Acting SPDT Switch
  • EX = Explosion-proof (CSA Listed for Class I, Div. 1, Groups C & D)
  • UD= Temperature bulb style “D” (10-00-0286)



  • Part No.: A25TE-EXUD-250-16-M10
  • Range: 130 – 250°F (54 – 121°C)
  • Metric: 10 mm x 1.5
  • Dial: White on black
  • Case: Glass filled/Polycarbonate, corrosion-resistant; steel mounting clamp included
  • Bezel: Polished stainless steel
  • Pointer: Tempered nickel silver; red tip
  • Lens: Polycarbonate, high-impact
  • Sensing Element: Beryllium copper diaphragm
  • Sensing Bulb: Copper
  • Capillary: PVC armored copper; 16 ft.
  • Sensing Bulb: Copper
  • Gage Accuracy: Temperature Range 130 to 250°F (54 to 121°C); Lower 1/3 of Scale ± 9°F (± 5°C); Middle 1/3 of Scale ± 5°F (± 2.4°C); Upper 1/3 of Scale ± 4°F (± 2°C)
  • Maximum Temperature: 310°F (154°C)
  • Standard Settings: 210°F (99°C)
  • Snap-Switch Rating: SPDT, 3 A@ 30 VDC inductive; 4 A @ 125 VAC inductive
  • Wiring: Number 6 screw terminals
  • Unit Weight: 13.3 oz. (0.413 kg)
  • Unit Dimensions: 4-3/4 x 4-3/4 x 2-3/4 in. (121 x 121 x 70 mm)

Product Condition: NEW
Murphy Mechanical Explosion-Proof Temperature Swichgage 130-250F with Bulb Style D and Polycarbonate Case A25TE-EXUD-250-16-M10

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