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Dipl.-Ing. W. Bender GmbH & Co. KG • Londorfer Str. 65 • 35305 Grünberg • Tel.: 06401 807-0 • Fax: 06401 807-259
Measuring current transformers of the WS... series
Measuring current transformers of the WS...-8000 series
WS50x80 series
measuring current transformers
WS50x80-8000 series
measuring current transformers
WS50x80 series,
split-core type measuring current transformers
WS50x80-8000 series
split-core type measuring current transformers
Device features
WS... series measuring current transformer
• For RCMS460/490 series residual current
monitoring systems
• For RCM420, RCM460 and RCM470 series
residual current monitors
• For EDS470, EDS460 / 490 series insulation
fault locators
WS...-8000 measuring current transformer
• for EDS473(E)-12, EDS474(E)-12, EDS461
and EDS491 series insulation fault locators
Standards, approvals and certifications
130
TDB409015en / Main catalogue part 1 – Insulation monitoring / 05.2011
Subject to change! – © Dipl.-Ing. W. Bender GmbH & Co. KG, Germany
Product description
WS... and WS...-8000 series split-core type measuring current transformers can be opened
using the interlock knob to enclose the conductors to be monitored. That allows easy
retrofitting in existing installations.
WS... und WS...-8000 series measuring current transformers are highly sensitive measuring
current transformers of split-core type which in combination with RCM and RCMS series
residual current monitors and evaluators convert AC currents into evaluable measurement
signals.
In addition, the measuring current transformers can be used in combination with insulation
fault location systems (EDS) for IT systems. They are designed to measure the locating
current generated by a PGH locating current injector or an A-ISOMETER® IRDH. In combination
with EDS series insulation fault locators the test current is converted into evaluable signals.
Connection to the respective devices is via a two-wire cable.
Standards
WS... and WS...-8000 series measuring current transformers comply with the device
standard: IEC 60044-1.
Installation instructions
• Make sure that all live conductors are routed through the measuring current transformer
• Do not route shielded conductors through the measuring current transformer
• Never route a PE conductor through the measuring current transformer!
Wiring diagram
WS... series measuring current transformer
Connection to the respective RCMS series
residual current monitoring system, RCM
series residual current monitor or to an EDS
series insulation fault location systems.
WS...-8000 measuring current transformer
Connection to the respective insulation
fault locator EDS473(E)-12, EDS474(E)-12,
EDS461 and/or EDS491.
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Summary of Contents for Bender WS Series
- Page 1 Dipl.-Ing. W. Bender GmbH & Co. KG • Londorfer Str. 65 • 35305 Grünberg • Tel.: 06401 807-0 • Fax: 06401 807-259 Measuring current transformers of the WS… series Measuring current transformers of the WS…-8000 series Product description WS… and WS…-8000 series split-core type measuring current transformers can be opened using the interlock knob to enclose the conductors to be monitored.
- Page 2 WS… series measuring current transformers – WS…-8000 series measuring current transformers Technical data Ordering information Type Internal dimensions Mounting Art. No. Insulation coordination acc. to IEC 60664-1 / IEC 60664-3 brackets Rated insulation voltage 800 V WS20x30 20 x 30 mm ×...
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