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Siemens 3rr2 Current Monitoring Relays

Siemens Sirius 3RR2 Current Monitoring Relays.

Sizes S0 and S00.
Basic or digital.
24 - 240 AC DC

Suitable for the load monitoring of motors or other loads. In two or three phases they monitor the rms value of AC currents for overshooting or undershooting of set threshold values. Available in basic versions (closed-circuit principle) and digitally adjustable versions(LCD, open-circuit or closed circuit principle).


  • Directly mountable onto 3RT2 contactors, i.e. no additional wiring outlay in the main circuit
  • Optimally coordinated with the technical characteristics of the 3RT2 contactors
  • No separate current transformer required

Application and use:

  • For load monitoring of motors or other loads
  • Multi-phase monitoring of undercurrent and overcurrent
  • Starting and tripping delay can be adjusted separately
  • Tripping delay 0 ... 30 s
  • Auto or manual RESET

Please note: image illustrative of the range

Part NumberSizeQuantityDelivery Surcharge*Price (ex Vat)Quantity
EAE380 3RR21411AW30 1.6-16A 1 Cross £
EAE381 3RR22411FW30 1.6-16A 1 Cross £
EAE382 3RR21421AW30 4-40A 1 Cross £
EAE383 3RR22421FW30 4-40A 1 Cross £

*Delivery Surcharge will be applied upon checkout

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