Circuit Breakers


Order No.:
27H1493
Manufacturer SKU:
3KD4640-0QE20-0


Order No.:
27H1494
Manufacturer SKU:
3KD4642-0QE10-0


Order No.:
27H1495
Manufacturer SKU:
3KD4644-0QE10-0


Order No.:
27H1496
Manufacturer SKU:
3KD4644-0QE40-0


Order No.:
27H1497
Manufacturer SKU:
3KD4660-0QE20-0


Order No.:
27H1498
Manufacturer SKU:
3KD4830-0QE10-0


Order No.:
27H1499
Manufacturer SKU:
3KD4830-0QE20-0


Order No.:
27H1500
Manufacturer SKU:
3KD4832-0QE10-0


Order No.:
27H1501
Manufacturer SKU:
3KD4834-0QE10-0


Order No.:
27H1502
Manufacturer SKU:
3KD4834-0QE40-0


Order No.:
27H1503
Manufacturer SKU:
3KD4840-0QE10-0


Order No.:
27H1504
Manufacturer SKU:
3KD4840-0QE20-0


Order No.:
27H1505
Manufacturer SKU:
3KD4842-0QE10-0


Order No.:
27H1506
Manufacturer SKU:
3KD4844-0QE10-0


Order No.:
27H1507
Manufacturer SKU:
3KD4844-0QE40-0


Order No.:
27H1508
Manufacturer SKU:
3KD4860-0QE20-0


Order No.:
27H1509
Manufacturer SKU:
3KD5030-0QE10-0


Order No.:
27H1510
Manufacturer SKU:
3KD5030-0QE20-0


Order No.:
27H1511
Manufacturer SKU:
3KD5030-0RE10-0


Order No.:
27H1512
Manufacturer SKU:
3KD5030-0RE20-0
Safety guaranteed: Functions and advantages of switch-disconnectors
Circuit breakers are used to protect electrical circuits by automatically switching off in the event of an overload or short circuit. They can be switched back on, eliminating the need for one-way fuses. Switch-disconnectors, on the other hand, specialize in safely isolating electrical circuits from the power supply.
Unlike circuit breakers, switch-disconnectors do not perform a protective function, but merely ensure safe isolation as well as prevention of accidental switch-on. Both electromechanical components are indispensable in electrical installations and in the energy sector, with circuit-breakers primarily ensuring the protection of installations, while switch-disconnectors are used for maintenance and repairs.