You can use on virtually any DC voltage. It just grounds 1 wire when tripped. It must be used in connection with a Murphy switch or you could wire through a relay using the n.c. side for normal operation and this will ground and open the circut.

FW Murphy Temperature Gauge 2" 20T Series (20T-250-10-1/2 10FT Capillary)

Q: can it be wired to an alarm buzzer on a boat?

This does not have an alarm prior to shutdown. image.png

Q: Will this work on an older Mercedes marine diesel engine, 1970s?

works with any engine that has a port for 1/2" pipe thread, Mercedes were metric, you would need to make your port threads to 1/2" NPT. Also, To work this gauge right you need a tattletale relay to shut engine off when temp gets to high.

Q: Which one has the single wire terminal post to activate the shutdown? That is the one I need.

They're all the single wire. The last few digits are the length of the capillary tube. Its a 20t series (gauge mounting size 2"), 250 degrees max and the rest of the numbers are the length (6ft) and pipe thread size (1/2).

4.8/5

Product ID: 84588912

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Details

Brand
FW Murphy
Material
Metal
Screen Size
2 Inches
UPC
600713096675
Global Trade Identification Number

📏10FT Capillary

🔧20T Series

🌡️2" Display

Frequently Bought Together

FW Murphy Temperature Gauge 2" 20T Series (20T-250-10-1/2 10FT Capillary)

Murphy 20P-100 Oil Pressure Gauge

Murphy by Enovation Controls 117 Magnetic Switch (25700071)

Description

Stay Cool Under Pressure! ❄️

DURABLE DESIGN - Built to withstand tough environments, ensuring longevity.
EXTENDED REACH - 10FT capillary allows for versatile installation options.
EASY INSTALLATION - User-friendly setup for quick deployment in any application.
INDUSTRY STANDARD - Part of the trusted 20T Series, recognized for reliability.
PRECISION MONITORING - Experience accurate temperature readings with a 2" display.

The FW Murphy Temperature Gauge 2" 20T Series is a robust and reliable instrument designed for precise temperature monitoring in various industrial applications. With a 10FT capillary for flexible installation, this gauge ensures accurate readings and durability, making it a go-to choice for professionals.

Have a Question? See What Others Asked

can it be wired to an alarm buzzer on a boat?

Will this work on an older Mercedes marine diesel engine, 1970s?

Which one has the single wire terminal post to activate the shutdown? That is the one I need.

Is this 24 volt?

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FW Murphy Temperature Gauge 2" 20T Series (20T-250-10-1/2 10FT Capillary)

Details

Description

Have a Question? See What Others Asked

Common Questions