Ground Fault Relays RCD300M2 Differential Current Rela
designed to provide sensitive ground fault
protection without the problems associated with
high-sensitivity nuisance tripping. It operates
continuously and has the unique feature of a
metering output to drive either a remote meter or
interface with a PLC. This output signal gives
the RCD300M2 both protective and predictive
capabilities. By using it, leakages can be seen
as they occur and ground faults can be detected
before they become critical.
The RCD300M2 operates in conjunction with a
Littelfuse WKE Series current transformer. The
combination of the RCD300M2 measuring signal
and the output signal from the WKE provide the
required resilience to electrical noise - the main
cause of nuisance tripping.
The RCD300M2 can operate on grounded, highresistance
grounded and ungrounded power
systems. When a ground fault occurs, the
RCD300M2 operates the leakage current output
relay after the preset time delay. The
RCD300M2 also continuously checks the
connection to the C.T. If the C.T. circuit is
broken, the RCD300M2 indicates "C.T. Fault"
and operates the output relay. Due to its
sensitivity, the RCD300M2 provides a high
degree of network protection and personnel
safety as well as minimizing the risk of fire
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Datasheet |
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UL 508 、 VDE |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2016/11/30 |
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297 KB |
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