This standard applies to circuit-breakers, the main contacts of which are intended to be
It applies whatever the rated currents, the method of construction or the proposed applications
of the circuit-breakers may be.
The requirements for circuit-breakers which are also intended to provide earth-leakage
protection are contained in Annex B.
The additional requirements for circuit-breakers with electronic over-current protection are
contained in Annex F.
The additional requirements for circuit-breakers for IT systems are contained in Annex H.
The requirements and test methods for electromagnetic compatibility of circuit-breakers are
contained in Annex J.
The requirements for circuit-breakers not fulfilling the requirements for over-current protection
are contained in Annex L.
The requirements for modular residual current devices (without integral current breaking
device) are contained in Annex M.
The requirements and test methods for electromagnetic compatibility of ci