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SVM-79: Single Phase Voltage Relay

• Adjustable Overvoltage

• Adjustable Undervoltage

• Window Operation

• 10 Amp Contacts

• Plug-In Package

• Indicating LED




Nominal Voltage Monitor

The SVM-79 monitors single phase AC voltage and operates a dry set of contacts. When the voltage being monitored is between the independently adjustable upper and lower set points, the output relay and indicating LED are energized. If the voltage goes higher than the overvoltage set point or lower than the undervoltage set point, the output relay will be de-energized and the LED will go out. A time delay avoids the effects of quick variations in the voltage.




Nominal Voltage: 50/60 Hz

    120VAC - Under Adj. 90 to 110VAC, Over Adj. 112 to 140VAC    

    240VAC - Under Adj. 180 to 220VAC Over Adj. 225 to 280VAC Hysteresis: 2%

Pick-up & Drop-out Delays: 0.5 sec. fixed

Power Consumption: 1.5VA

Output Rating @ 25°C:

    10 Amps @ 250VAC

    1/2 HP @ 250VAC

    1/3 HP @ 125VAC

    10 Amps @ 30VDC



Mounting: Plug-In

Termination: 8 Pin Octal

Packaging: Dust Cover

Weight: 9 Oz.


Ambient Temperatures

Operating: 0°C to 40°C

Storage: -40°C to 85°C


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