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Does the Neutral require connection on a Acti 9 (4 pole) RCCB?

Installation guide for RCCB for 3P without neutral
If you are using Acti9 range RCCB, You don't need to add the resistor with iID Acti9 RCCB. You can directly connect the 3 phase on 3 poles of RCCB (without neutral).
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