DANSK DS/EN 60947-5-1 PDF

The provisions of the general rules, IEC 60947-1, are applicable to this standard, where specifically called for. This part of IEC 60947 applies to control circuit devices and switching elements intended for controlling, signalling, interlocking, etc., of switchgear and controlgear. It applies to control circuits devices having a rated voltage not exceeding 1000 V a.c. (at a frequency not exceeding 1000 Hz) or 600 V d.c. However, for operational voltages below 100 V a.c. or d.c., see note 2 of 4.3.1.1. This standard applies to specific types of control circuit devices such as: – manual control switches, for example pushbuttons, rotary switches, foot switches etc.; – electromagnetically operated control switches, either time-delayed or instantaneous, for example contactor relays; – pilot switches, for example pressure switches, temperatur sensitive switches (thermostats), programmers, etc.; – position switches, for example control switches operated by part of machine or machanism; – associated control circuit equipment, for example indicator lights, etc.