Siemens
- Available:
- 5 pcs.In-StockUpdated at: 14-09-2026
- Offer from:
Trusted supplier — United Kingdom, member since 2023
- Warranty:
- 12 months
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The Phase Sequence Monitoring Relay is designed to monitor the phase sequence of 3-phase AC systems. It operates within a voltage range of 360 to 520 V and a frequency of 50 to 60 Hz. This relay features two changeover contacts with screw terminals, making it an ideal follow-on product for the 3UG3511-1BQ50.
This relay is a successor to the 3UG3511-1BQ50, providing improved performance and reliability. It is suitable for a wide range of applications where phase sequence monitoring is required in AC systems.
Siemens

Siemens
Siemens
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Datasheet for Siemens 3UG4511-1BP20, including specifications and features.
3D CAD model and technical drawings, ready for your design software.

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