15700144 – Murphy Level Swichgage – L150-BC


The L150-BC Level Swichgage® instrument is a combination liquid level gauge and low limit switch;the instrument includes (1) achamber with pivotal float, (2) an indicating dial with pointer, and (3) alow-levelcontact. When properly installed and maintained, the float operates the pointer which, inturn, both indicates level during normal operation, and closes a switching circuit if the level falls tothelow limitset point. The L150-BC features a field adjustable set point and a back connection. Theunit can be mounted away from the engine for protection from vibration and extreme heat. The setpoint can be adjusted at any time.The primary use of the L150-BC is for engine cooling systems, surge or expansion tanks, condenserradiator or vapor phase systems, pressurized or atmospheric systems. The L150-BC Liquid LevelSwichgage® instrument can also be used to monitor lube oil, hydraulic fluid or diesel fuel reservoirsand activate alarms and/or shut-down at a predetermined minimum level. This instrument is built forlow pressure systems with a maximum of 25 psi (172 kPa) [1.72 bar]

Estimate available in 28 working days from Italy to Italy

This product may vary on delivery times, as factories do not guarantee production due to lack of raw materials.

Availability: Available on backorder SKU: 15700144 Categories: , Tags: ,



  • Indicating Gauge
  • Low Limit Switch
  • Float Operated
  • Monitors Level of Coolant, Lube Oil, Diesel Fuel and Hydraulic Fluid

Product specifications:

  • Part No.: L150-BC
  • Maximum Temperature: 250° F (121° C)
  • Maximum Operating Pressure: 25 PSI (172 kPa)
  • Case: Die cast aluminum, polyurethane coated;approximate dimensions; 5 x 4-3/4 x 2-3/4 in.(127 x 121 x 70 mm)
  • Enclosure Rating: IP35
  • Mounting Holes: (2) 9/32 in. (7 mm) diameter at 4-1/2 in.(114 mm) on center
  • Float: Brass
  • Lens: Polycarbonate
  • O-rings: Saturated Nitrile, are suitable for coolant or hydrocarbons. Maximum temperature 250 °F (121 °C)
  • Gasket: Nitrile
  • Vent Tube: 1/4 x 5 in. (6 x 127 mm) copper cane with 1/4 NPT x 1/4 in.(6 mm) tube fitting
  • Snap-Switch: SPDT rated 10 A @ 125 VAC;0.5 A @ 125 VDC; 10 A 30 VDC
  • Contact Rating: 2 A @ 30 VAC/DC
  • Shipping Weight: 42oz. (0.82kg.)
  • Wire: (1) 16 AWG x 26 in. (1.5 mm 2 x 660 mm) with terminal
  • Shipping Dimensions: 5-1/4 x 5-1/4 x 5-1/2 in.(133 x 133 x 140 mm)

Product specifications:

Before freezing comes, check to be sure your L150-BC or EL150 Series, coolante level switchage is filled with antifreeze solution the same as your engine block and radiator.

Hot to Order the singular parts are subject to separate quotation:

Parts NumberModel and DescriptionNotes
15700138All parts except case and bodyL150 Repiar Kits
15700135All parts except case and bodyEL150k1 Repair Kits
15000100Lens / switch assemblyEL150K1 Repair Kits
15000109Switch / terminal assembly
15000107Radiator fitting (PS), thin wall, 1/4 in. (6 mm) tube fitting
15010202Radiator fitting (PS-D), for diesel or oil, think wall (to 1/4 in [6 mm]), accepts 1/2 in. (13 mm) I.D. hose or 1/4 in. (6 mm) O.D. tubingAccessories
15010167Radiator fitting (PS Barbed), thin wall, 1/4 in. (6 mm) tubing or hoseAccessories

Additional information

Weight0,82 kg


15700144, L150-BC