Leakage protection: the difference between RCD and RCBO

Update date:2017-12-01 Source:MAXGE

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EPBR-i(RCBO)

The Residual Current Circuit breaker refers to a leakage switch (such as an ID leakage switch) without any Current protection (no overload trip). As a large leakage protection device with MCCB, it is a four-pole three-phase four-wire device, but mitsubishi has three poles of RCCB for three-phase and single-phase double line. The other can be combined with the MCCB with the ZCT, the highest sensitivity 3A delay of 5 seconds.

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The RCBO refers to the electromagnetic leakage protection Circuit breaker (such as a DPN single-style leakage Circuit breaker), with overcurrent protection (with an overload trip);The "Residual Current Devices" refers to leakage protection Devices (such as C65 leakage attachments), including leakage switches and leakage protection breakers.

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RCD and MCB are connected to a small leakage Protection Device, which is a double pole single-phase double wire Device.

There is an O for the overlord, that is, with flow protection. Currently, rcdos are also called RCDS.

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Other:

ACB- universal (frame type) circuit breaker;

McB-micro circuit breaker;

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MCCB- molded case circuit breaker,

Zero sequence Current transformer of ZCT(Zero Current Transition).


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Copyright© 2017
www.maxge.com All Rights Reserved.

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