Is an Mx or MNx accessory mandatory with EVlink Home?

Check your local regulations. Schneider Electric recommends connecting an Mx or MNx accessory to EVlink Home to increase people's protection.
For countries without national exception: EVlink Home (& Smart) fulfill the following requirement from IEC 61851-1 Ed3.0 standard: the minimum opening of the contact equal to the clearance according to IEC 60664-1 considering overvoltage category 3 (e.g. the value given in IEC 60664-1 for 230 V/400 V is 4 kV rated impulse voltage withstand that implies at least 3 mm separation of contacts) and the MNx is not mandatory.

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