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Murphy Explosion-Proof 0-200 PSI Surface Mount Pressure Swichgage OPLC-A-200-EX

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Murphy Explosion-Proof 0-200 PSI Surface Mount Pressure Swichgage with Low Limit Lockout Switch - OPLC-A-200-EX

Product Condition: NEW
Murphy Explosion-Proof Surface Mount 0-200 PSI Mechanical Pressure Swichgage 4.5 in. with Bronze Bourdon Tube OPLC-A-200-EX
Estimated ship date: for orders by 3pm PT/6pm ET today Available for back order.

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The Murphy Explosion-Proof 0-200 PSI Surface Mount Pressure Swichgage with Low Limit Lockout Switch OPLC-A-200-EX is a combination pressure indicating gage with adjustable low and high limit switch. This limit switch can be wired directly to electric pilot circuits to operate alarms, shutdown or start/stop of engines and electric motors. The OPLC-A-200-EX features a 4-1/2 in. (114 mm) dial for easy viewing. Adjustable limit switch is accessible from the front of the gage and the contacts have a self-cleaning motion to enhance electrical continuity.

The OPLC is a surface mount, indicating, pressure gage and switch. Adjustable high and low limit, ungrounded contacts are used to operate alarm, shutdown or start-stop circuits. Pointer closure against either of the adjustable contacts completes the pilot-duty circuit.

An SPST toggle switch is provided to override the low limit contact for equipment startup. Suitable for engines or electric motors with appropriate Murphy magnetic switch or transformer relay assembly.



  • 4-1/2 in. (114 mm) Dial
  • Surface Mount Version
  • Low Limit Lockout Switch
  • Combination Indicating Gage and Critical Pressure Limit Switches
  • High and Low Pressure Limit Contacts Are Visible and Adjustable
  • Class I, Division 1, Groups C & D hazardous applications
  • Bronze Bourdon Tube
  • Explosion-proof: Swichgage enclosed within explosion proof case; Class I, Div. 1, Groups C & D



  • Part No.: OPLC-A-200-EX
  • Range: 0–200 psi (0–1.38 MPa) [0–14 bar]
  • Case: Die cast aluminum; weatherproof
  • Contact Rating: 1 SPDT; Center off; 2 A, 30 VDC, 1 A, 125 VAC pilot duty
  • Dial: 4-1/2 in. (114 mm) white on black, dual scaled psi /kPa
  • Gage Accuracy: ±2% for the first and last quarters of the scale, the middle half is ±1%
  • Geared Movement: 302 and 304 stainless steel
  • Lens: Optically clear polycarbonate
  • Pointer: High visibility with a pointer calibration hub
  • Sensing Element: Bronze bourdon tube
  • Process Connection: 1/4 NPT
  • Tube Type: Drawn C-Tube
  • Range Selection Limits (psi-mpa-bar): Thru 1,000 psi (6.89 MPa) [68.95 bar]
  • Bourdon Tube and Tip Material (all joints TIG welded except “A”): Grade A Phosphor Bronze Tube (Brass Tip, Silver Brazed)
  • Socket Material: Brass
  • Shipping Weight: 5 lbs 9 oz (2.5 kg)
  • Shipping Dimensions: 9-1/2 x 9-1/4 x 5-3/4 in. (241 x 235 x 146 mm)

Additional Information

Product Condition NEW
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