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SMARTE Messtechnik für Gleichstrom – Spannung – Kabel – Isolation

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WITT EscS 3 | PÜWE Potential monitoring device

WITT EscS 6 | PÜWE

Potential monitoring device infeed

SKU: 00000093 Categories: Class 4 VLD, voltage limiting device
  • Description
  • Additional information

Description

Application

The potential monitoring device WITT EscS (PÜWE) determines the potential difference between two connection points and short-circuits it for a limited time when a preset voltage level (40 to 99 volts) is exceeded.

Description

If the preset voltage level is exceeded, the WITT EscS (PÜWE) responds, i.e. anti-parallel connected thyristors are triggered and a contactor is switched at the same time. The two connections are short-circuited.
After the preset time (8 to 60 seconds) has elapsed, the connection is canceled again.
The number of switching operations is counted. If there are more than five switching operations per hour, an error message is generated, otherwise the counter is reset.
The switch-on threshold is set on the display in one-volt steps and applies to AC and DC voltages.
In the event of excess temperature (factory setting 60 ° C) or a defective contactor, the PÜWE is switched to inactive, i.e. it is not switched on.

Function

The following messages are generated by the WITT EscS (PÜWE) and are available on potential-free contacts:

  • Operation WITT EscS (PÜWE) in normal operation, open
  • Short circuit WITT EscS (PÜWE) is closed
  • Error PÜWE has carried out more than 5 switching operations per hour
  • Overtemperature WITT EscS (PÜWE) Internal temperature has reached the limit value, device is inactive

The properties described under the tab “ Technical data ” also contain possible options that we offer for the product. If you are interested, please contact us.

Additional information

Zulassungen

Witt

Normen

Customer requirement, DIN EN 50121-05, DIN EN 50122-02, DIN EN 50123-01, DIN EN 50163, DIN EN 50526-02

Einschaltvermögen (Inss)

14 kA / 25 ms

DC Fahrspannung (UA)

Witt

Hilfsspannung (1)

110 V DC, 240 VAC / 50 Hz, 24VDC, 48VDC, 60VDC

Hilfsspannung (2)

110 V AC / 60 Hz, 110 V DC, 230 V DC, 240 VAC / 50 Hz, 24VDC, 48 V DC, 60VDC, Customer request, No

SCADA drahtlose Kommunikation

GSM, LTE, No, W-LAN

SCADA Kommunikationsprotokoll

No

Bedienelemente

Witt

Gehäuseart

compact cabin GFK, Control cabinet stainless steel

Schutzart nach DIN EN 60529

Witt, Witt

Aussenfarbe

Witt

Hilfsspannung gepuffert

No

Dokumentationsart

digital, Paper

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