Accessory for switch 3KL61 auxiliary switch mounting kit 1 NO+1 NC (max. 3 contact blocks can be mounted) Comprehensive accessories for increased flexibility. From bridging bars through auxiliary switches to various drives, fourth poles or contact covers: With a wide range of accessories, the switch disconnectors and transfer switching equipment can be used for a wide variety of requirements and retrofitted at any time. no value www.siemens.com/switching-devices. Siemens offers a comprehensive portfolio of protection, switching, measuring and monitoring devices, distribution systems as well as switches and sockets for safe and efficient electrical infrastructure in buildings and industry