accessory for Switch disconnector with fuses In-line design, pluggable Guide rails Overall depth 400 mm 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. The Siemens 3NJ6 switch disconnectors with fuses are characterized primarily by: 1. Compact, modular design. 2. Voltage levels up to 690 V AC/440 V DC. 3. Simple and efficient mounting due to incoming plug-in contact. 4. Dead-state fuse replacement. 5. Compliance with the provisions of IEC EN 60947-3. 6. High operator protection and maintenance-free. 7. Clear and unambiguous switch position indicator. 8. Flexibility due to accessories that can be retrofitted at any time.