1. Electricity - Electronics
  2. Switch and Relay
  3. Phase sequence monitoring relay
  4. Elektra Elektronik GmbH & Co. Störcontroller KG

Under-voltage monitoring relay EUW 3
over-voltagephase sequencethree-phase

under-voltage monitoring relay
under-voltage monitoring relay
under-voltage monitoring relay
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Characteristics

Measured/monitored value
under-voltage, over-voltage, phase sequence
Network
three-phase, DC
Mounting
DIN rail
Other characteristics
adjustable
Tripping current

0.2 A, 4 A

Trigger voltage

Min.: 195 V

Max.: 253 V

Description

The EUW 3 supervises three-phase networks on under and overvoltage, in which both switching points can be independently adjusted by each other. Overranging has to be avoided. The supervision is separately carried out for every phase so that the actual asymmetry or even phase failure is recognized. In addition direction of rotation (phase sequence) and neutral wire break is monitored. Every error is shown by the corresponding red LED lighting up. In the normal operation the output relay is pulled on and the power light (green LED) lights up. In the fault case as well as at loss of the supply voltage the relay drops off and the operating light goes out. The inserted hysteresis prevents the permanent condition change by varying measuring voltage around a switching point. With the separately adjustable response and drop-out delays, short mains dips or asymmetries during switch-on processes can be deliberately ignored.

Exhibitions

Meet this supplier at the following exhibition(s):

Middle East Energy
Middle East Energy

16-18 Apr 2024 Dubai (United Arab Emirates)

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    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.