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- Fuseless switch disconnectors
- Fuse switch disconnectors
- Switch disconnectors with fuses
- 3KF up to 800 A
- Product description
- Overview of components
- Technical specifications
- Derating values of 3KF fuse switch disconnectors when using SITOR fuses according to IEC constraints
- Derating table for use of SITOR fuses IEC from 32 to 160 A
- Derating table for use of SITOR fuses IEC from 250 to 800 A
- Derating values when using SITOR fuses according to UL constraints
- Derating table for use of SITOR fuses UL from 32 to 160 A
- Derating table for use of SITOR fuses UL from 250 to 800 A
- 3NJ62 up to 630 A
- 3KF up to 800 A
- 8UD1 door-coupling rotary operating mechanisms
All key product features at a glance
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meet the requirements of IEC / EN 60439-1, IEC / EN 60947-3
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Voltage levels up to 690 V AC
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Rated operational current from 160 A to 2000 A
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Fuse links according to IEC 60269 Part 1 can be used – nickel-plated fuse blades are not permissible due to the high transfer resistance
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In open position safe from touch by the back of the hand (exception 3NJ56: IP00)
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Parking position for maintenance
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1-pole or 3-pole switchable
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Vertical and horizontal mounting position
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Climate-proof
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Degree of protection IP30 with closed fuse carriers, IP10 with open fuse carriers (exception 3NJ56: IP00)
NOTE
Instead of fuse links, some 3NJ4 fuse switch disconnectors can be equipped with isolating blades They can then be switched as "Fuseless switch disconnectors", but only under AC-20 conditions "Switching without load".