202-200-SP - 202-200-SP Series

Littelfuse Voltage Monitoring Relays
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The 202-200-SP voltage monitor is designed to protect single-phase motors regardless of size. It can be used with 190V-240VAC, 50/60Hz motors to prevent damage caused by incoming power problems.

A unique microcontroller-based voltage-sensing circuit constantly monitors the voltage to detect harmful power line conditions. When a harmful condition is detected, the relay’s output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to an acceptable level and a specified amount of time has elapsed (restart delay). The trip delay prevents nuisance tripping due to rapidly fluctuating power line conditions.

Property (Mouseover for details) Value
Input Voltage (V) 190 to 240VAC
Input Tolerance (%) ±10%
Maximum Input Power 5W
Input AC Line Frequency (Hz) 50/60Hz (50Hz will increase all delay timers by 20%.)
Output Form SPDT
Output Load Rating (VA) Pilot Duty: 480VA @ 240VAC; General Purpose: 10A @ 240VAC
Restart Delay Range After a Fault or Complete Power Loss: Manual 2 - 300s adjustable
Trip Delay Range Under/Over Voltage: 4s
Trip Point Accuracy (%) ±1%
Overvoltage Trip Voltage (%) 110%
Overvoltage Reset Voltage (%) 107%
Undervoltage Trip Voltage 90%
Undervoltage Reset Voltage (%) 93%
Termination Type 0.25 in male quick connect
Mounting Method 1/4 in socket head cap screw (customer supplied)
Operating Temperature -40° to 70°C (-40° to 158°F)
Humidity 95% non-condensing
Dimensions 2.50 in H x 2.50 in W x 1.40 in D (63.5 x 63.5 x 35.6 mm)
Weight (lbs/g) 0.5 lb. (8.0 oz. 226.8 g)