Accessories for switch disconnectors with fuses, in-line design, pluggable, NH1 connection cover for 2- and 3-pole devices Comprehensive accessories for increased flexibility. From connecting bridges and auxiliary switches to various drives, fourth poles or contact covers: With a wide range of accessories, the switch disconnectors and transfer switches can be used for different requirements and retrofitted at any time. The Siemens switch disconnectors with fuses 3NJ6 are characterized above all by: 1. Modular, compact design. 2. Voltage levels up to AC 690 V and DC 440 V. 3. Simple and economical installation thanks to plug-in contact on the supply line side. 4. Voltage-free fuse replacement. 5. Compliance with the provisions of IEC EN 60947-3. 6. High level of personal protection and maintenance-free. 7. Clear switch position indicator. 8. Flexibility thanks to accessories that can be retrofitted at any time.