Power Monitoring and Protection

MCS Series

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MCS Series

Kele Mini Current Switch MCS Series

Kele Mini Current Switch


The Kele MCS Series mini current switches monitor line current for electrical loads such as pumps, conveyors, lighting, heaters or fans and closes the output contacts when the trip point is exceeded. The MCS0.5A has a factory set trip point of 0.5 Amps to provide Fixed Threshold status operation. The MCS75A-LED has a trip setpoint that is adjustable between 0.75 to 75 Amps by rotating the adjustment pot. The sensor requires no external power as it is totally powered by induction from the AC line being monitored. The switch output is normally open and when the input current exceeds the trip setpoint the switch closes to provide an on/off digital signal to the controller.


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QtyModelDescriptionIn StockList PriceInternet Price
MCS0.5A CURR SWITCH, MINI, 0-100A, 0.5A FIXED, SOLID COREIn Stock55.5531.11
MCS75A-LED CURR SWITCH, MINI, 0.75-75A, ADJ, SOLID CORE, LEDIn Stock69.6939.03


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  • Solid core
  • Fixed threshold or field adjustable models
  • Up to 100 amps input current (MCS0.5A)
  • Up to 75 amps input current (MCS75A-LED)
  • Small, compact design

Frequency:40-100 Hz

Current Set Point:

 :MCS0.5A Fixed at 0.5 Amps

 :MCS75A-LED 0.75 to 75 Amps

Maximum Input Current:

 :MCS0.5A 100 Amps continuous

 :MCS75A-LED 75 Amps continuous

Output Type:Solid-state mofset

Output Switch Action:Normally open

Output Switch Ratings:30 VAC/DC, 500 mA Max.

Indication:Status LED (MCS75A-LED Only)

Response Time:200 mS typical

Insulation Class:600 VAC, insulated conductors

Operating Temperature:5° to 140℉ (-15° to 60℃)

Operating Humidity:5-90% RH non-condensing

Enclosure Rating:NEMA 1, ABS/PC, UL94 V-0


Termination:14 to 22 AWG

Dimensions:1.9″ x 1.93″ x 0.83″ (48 x 49 x 21 mm)

Window Size:0.45″ (11.4 mm)

Approvals:UL FIle #E339785, CE, RoHs

Warranty:1 year