SANS 60947-5-5-2005 低压开关和控制器．第5．5节：控制电路电器和开关元件．具有机械锁闩功能的电气紧急制动装置
Low-voltage switchgear and controlgear Part 5-5: Control circuit devices and switching elements - Electrical emergency stop device with mechanical latching function
Provides detailed specifications relating to the electrical and mechanical construction of emergency stop devices with mechanical latching function and to their testing. Is applicable to electrical control circuit devices and switching elements which are