Murphy 4-1/2 in. Panel Mount Mechanical Temperature Swichgage 15-250F with Copper Bulb and 30 ft. PVC-Armored Copper Capillary - SPLFC-250P30

The 4-1/2” (114 mm) size dial Swichgage is a mechanical gage for temperature indication. It is a combination indicating gage and critical temperature limit switches. High and low temperature limit contacts are visible. It includes adjustable, electrical contacts that can be used for start and stop, to trip alarms and to shut down equipment.

This vapor-actuated gage features a sealed capillary tube and sensing bulb. When subjected to heat, the liquid in the sensing bulb expands to vapor creating pressure against a bourdon tube mechanism. The bourdon tube translates this vapor pressure into a mechanical gage reading. The gage pointer acts as a pressure indicator and as one switch pole, which completes a circuit when it touches the adjustable limit contacts. Contacts have self-cleaning motion to ensure electrical continuity.

PRODUCT FEATURES:

• Combination indicating gage and critical temperature limit switches
• High and low temperature limit contacts are visible and adjustable
• SPDT snap-acting models
• Panel and wall mount versions
• Latching control relay versions available
• Gage pointer makes with two adjustable contacts to complete a pilot-duty circuit

PRODUCT SPECIFICATIONS:

• Murphy Part No.: SPLFC-250P30
• Series: SPLFC Series
• Temperature Range: 15-250°F (9-121°C)
• Minimum Sensing Bulb Insertion into Process: 5 in. (127 mm)
• Diameter: 4-1/2” (114 mm)
• Dial: White on black, dual scale, °F and °C standard
• Case: Die-cast aluminum
• Mounting: Panel Mount
• Capillary: PVC-Armored Copper Tube, 30 ft. long
• Sensing Bulb: Copper Bulb
• Length: 7 in. (178 mm)
• Pressure Rating: 600 psi (4.1 MPa) [41 bar]
• Connection: 1/2 NPT compression fitting
• Overrange: Do not exceed 10% above full range
• Limit Contacts: 1-SPDT, Center off; pilot-duty; 2 A @ 30 V; 1 A @ 125 VAC. Contacts are gold-plated silver
• Wire Connections: Wire leads, 18 AWG (1.0 mm2) x 9 in. (229 mm) long
• Item Weight: 8 lb. (3.6 kg) approximately
• Item Dimension: 16 x 11 x 5-1/2 in. (406 x 279 x 140 mm)

APPLICATIONS:

• Gas compressors
• Heaters and coolers
• Water pump temperature
• Engine coolant temperature
• Process temperature