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Phase Monitoring Relay, Multifunction, 3UG, SPST-NC, DIN Rail, Screw


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Technical Datasheet:
3UG4511-1BP20   Datasheet
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DIN Rail



3 Phase




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Technical Documents (1)

CAD Downloads


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CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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Product Overview

The 3UG4511-1BP20 is an analogue phase sequenced Monitoring Relay, the phase sequence in a three-phase network and no adjustments are required for operation. The device has an internal power supply and works using the closed-circuit principle. If the phase sequence at the terminals L1-L2-L3 is correct, the output relay picks up after the delay time has elapsed and the LED is lit. If the phase sequence is wrong, the output relay remains in its rest position.
  • Analogue Phase Sequence Monitoring Relay
  • SPST-NC Contact Configuration
  • Variably Adjustable to Overshoot, Undershoot or Range Monitoring
  • Freely Configurable Delay Times and Reset Response
  • Provides Maximum Protection for Mobile Machines and Plants or for Unstable Networks
  • Automatic direction correction of rotation by sensing power system faults and wrong phase sequence


HVAC, Portable Devices, Building Automation

2 In stock

3 more will be available on 14/10/22
3 more will be available on 25/10/22
1 more will be available on 05/11/22
2 more will be available on 22/11/22

Reserving future stock

Order before 6pm (Northern Ireland 6pm)

With you next business day

Due to market conditions delivery times are for general guidance only and may be subject to change at short notice

£88.82 ( ex VAT  ) £106.584 ( inc VAT )

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