scope:

This part of IEC 61810, with functional and safety aspects, applies to electromechanical elementary relays (non-specified time all-or-nothing relays) with high capability requirements like breaking or short circuit capabilities and similar for incorporation into low-voltage equipment. These relays may have a specific design to extinguish the electric arc between contacts (e.g. by magnetic blow-out), or use an insulation coordination not covered by IEC 61810-1 (e.g. by gas filled contact chambers), or require safety assessments not covered by IEC 61810-1 (e.g. for higher loads).

It defines additional requirements for high-capacity relays with generic performance intended for use in applications in smart grids, electric vehicles and other applications where, for example, battery charge/discharge switching is used, such as:

• electrical energy storage (EES) systems,

• solar photovoltaic energy systems,

• electric road vehicles (EV) and electric industrial trucks,

• power electronic systems and equipment,

• secondary cells and batteries,

• road vehicles.

Compliance with the requirements of this standard is verified by the type tests indicated.