Multi-part Document
BS EN IEC 60947 - Low- voltage switchgear and controlgear

This is a multi-part document divided into the following parts:

• Part 1 Low-voltage switchgear and controlgear. General rules
• Part 2 Low-voltage switchgear and controlgear. Circuit-breakers
• Part 3 Low-voltage switchgear and controlgear. Switches, disconnectors, switch-disconnectors and fuse combination units
• Part 4-1 Low-voltage switchgear and controlgear. Contactors and motor-starters. Electromechanical contactors and motor-starters
• Part 4-2 Low-voltage switchgear and controlgear. Contactors and motor-starters. Semiconductor motor controllers, starters and soft-starter
• Part 4-3 Low-voltage switchgear and controlgear. Contactors and motor-starters. Semiconductor controllers and semiconductor contactors for non-motor loads
• Part 5-1 Low- voltage switchgear and controlgear. Control circuit devices and switching elements. Electromechanical control circuit devices
• Part 5-2 Low-voltage switchgear and controlgear. Control circuit devices and switching elements. Proximity switches
• Part 5-7 Low- voltage switchgear and controlgear. Control circuit devices and switching elements. Proximity devices with analogue output
• Part 5-8 Low-voltage switchgear and controlgear. Control circuit devices and switching elements. Three-position enabling switches
• Part 6-1 Low-voltage switchgear and controlgear. Multiple function equipment. Transfer switching equipment
• Part 6-2 Low-voltage switchgear and controlgear. Multiple function equipment. Control and protective switching devices (or equipment) (CPS)
• Part 7-1 Low-voltage switchgear and controlgear. Ancillary equipment. Terminal blocks for copper conductors
• Part 7-4 Low-voltage switchgear and controlgear. Ancillary equipment. PCB terminal blocks for copper conductors
• Part 8 Low-voltage switchgear and controlgear. Control units for built-in thermal protection (PTC) for rotating electrical machines
• Part 9-1 Low-voltage switchgear and controlgear. Active arc-fault mitigation systems. Arc quenching devices
• Part 9-2 Low-voltage switchgear and controlgear. Active arc-fault mitigation systems. Optical-based internal arc-detection and mitigation devices