Rectangular module with a blue faceplate, rows of black screw terminals at the top and bottom and beige mounting ears

50R-100 | Littelfuse | Power Monitoring & Protection

1-Phase Voltage Monitor 95-120V SPDT

Brand:Littelfuse

MPN:50R-100

SKU:50R-100

List Price:

$414.00

Today's Price:

$215.28

product datasheet

catalog page

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product specifications

Service Type

Single Phase

Contact Form

SPDT

Supply Voltage (Nominal)

120 VAC

Mount

Foot

product series specifications

Frequency: 50* or 60 Hz

Contact Rating: SPDT, 10A general-purpose or 480 VA @ 240 VAC

Line Voltage Monitored:

50R-100 95-120 VAC

50R-200 190-240 VAC

Low Voltage Trip:90% of set point

Low Voltage Reset:93% of set point

Reset Delay Time after Power Loss:2 seconds

Trip Delay Time Low Voltage:2 seconds

Weight:1.0 lb (0.45 kg)

Approvals:UL and cUL listed, file #E68520

Warranty:5 years

product series features

Single-phase motor protection from low voltage conditions
Two-color LED for normal and fault condition indication
General-purpose relay for switching loads up to 10A at 240 VAC
UL and ULC listed

more information & related documents

Series Description

The MotorSaver™ 50R Series single-phase voltage monitor voltage sensing circuit constantly monitors the single-phase power for a low voltage condition. When a harmful condition is detected, the 50R Series output relay is deactivated after a fixed trip delay time. The output relay reactivates after power line conditions return to an acceptable level for a fixed restart time delay period. The trip delay prevents nuisance tripping due to rapidly fluctuating power line conditions. Single-phase motors on fans, compressors, air conditioners, heat pumps, water pumps, and small conveyor motors can be protected by the 50R Series.

Kele Description

1PH VOLT MONITOR 95-120V SPDT

Manufacturer

Littelfuse