This part of IEC 61810, which functional aspects and safety requirements, applies to high capacity/performance electromechanical elementary relays (non-specified time all-or-nothing relays) for incorporation into low voltage equipment (circuits up to 1 500 V DC and up to 1 000 V AC). These relays may have a specific design to extinguish the electric arcing 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 e.g. 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. NOTE – This standard is intended to be used in conjunction with IEC 61810-1: 2015.