Circuit Breakers
![Door-coupling rotary operating mechanism standard,IEC IP65 with door interlo...](/en/images/e62/G-I202-XX-22866P/95x95/door-coupling-rotary-operating-mechanism-standard-iec-ip65-with-door-interlo.png)
![Door-coupling rotary operating mechanism standard,IEC IP65 with door interlo...](/en/images/5d0/G-I202-XX-24216P/95x95/door-coupling-rotary-operating-mechanism-standard-iec-ip65-with-door-interlo.png)
![Door-coupling rotary operating mechanism standard,IEC IP65 with door interlo...](/en/images/623/G-I202-XX-35029P/95x95/door-coupling-rotary-operating-mechanism-standard-iec-ip65-with-door-interlo.png)
![Door mounted rotary operator standard IEC IP65 with door interlocking and ill...](/en/images/31d/G-I202-XX-55362P/95x95/door-mounted-rotary-operator-standard-iec-ip65-with-door-interlocking-and-ill.png)
![Side wall mounted rotary operator, standard, IEC IP65, illumination kit 24 V ...](/en/images/a23/G-I202-XX-22868P/95x95/side-wall-mounted-rotary-operator-standard-iec-ip65-illumination-kit-24-v.png)
![Side wall mounted rotary operator, emergency stop,IEC IP65 with mounting bra...](/en/images/435/G-I202-XX-28928P/95x95/side-wall-mounted-rotary-operator-emergency-stop-iec-ip65-with-mounting-bra.png)
![Off switch, 3 pole, 32 A, (W x H x D) 72 x 89.8 x 74.5 mm, fixed mounting, 5TL1632-0](/en/images/cd4/P-I202-XX-07845P/95x95/off-switch-3-pole-32-a-w-x-h-x-d-72-x-89-8-x-74-5-mm-fixed-mounting-5tl1632-0.png)
![Load-break switch, Rotary actuator, 3 pole, 63 A, 750 V, (W x H x D) 73 x 110 x 95 mm, screw mounting/DIN rail, 3KD0332-2LG20-3](/en/images/9db/G-I202-XX-56863P/95x95/load-break-switch-rotary-actuator-3-pole-63-a-750-v-w-x-h-x-d-73-x-110-x-95-mm-screw-mounting-din-rail-3kd0332-2lg20-3.png)
![Off switch, 4 pole, 100 A, (W x H x D) 72 x 89.8 x 74.5 mm, fixed mounting, 5TL1691-1](/en/images/583/P-I202-XX-07969P/95x95/off-switch-4-pole-100-a-w-x-h-x-d-72-x-89-8-x-74-5-mm-fixed-mounting-5tl1691-1.png)
![Load-break switch, Rotary actuator, 3 pole, 16 A, 750 V, (W x H x D) 63 x 100 x 92 mm, screw mounting/DIN rail, 3KD0133-2KG20-3](/en/images/922/G-I202-XX-56878P/95x95/load-break-switch-rotary-actuator-3-pole-16-a-750-v-w-x-h-x-d-63-x-100-x-92-mm-screw-mounting-din-rail-3kd0133-2kg20-3.png)
![Main switch, Rotary actuator, 4 pole, 25 A, 690 V, (W x H x D) 60 x 60 x 114 mm, fixed mounting, 3LD3154-1TL51](/en/images/51c/G-I202-XX-38608P/95x95/main-switch-rotary-actuator-4-pole-25-a-690-v-w-x-h-x-d-60-x-60-x-114-mm-fixed-mounting-3ld3154-1tl51.png)
![Load-break switch, 4 pole, 1000 A, 1000 V, (W x H x D) 331 x 235 x 111.5 mm, screw mounting, 3KD5044-0QE10-0](/en/images/f4c/G-I202-XX-29529P/95x95/load-break-switch-4-pole-1000-a-1000-v-w-x-h-x-d-331-x-235-x-111-5-mm-screw-mounting-3kd5044-0qe10-0.png)
![Load-break switch, 3 pole, 1000 A, 1000 V, (W x H x D) 382 x 310 x 152.5 mm, screw mounting, 3KD5030-0RE20-0](/en/images/3d5/G-I202-XX-23373P/95x95/load-break-switch-3-pole-1000-a-1000-v-w-x-h-x-d-382-x-310-x-152-5-mm-screw-mounting-3kd5030-0re20-0.png)
![Load-break switch, 4 pole, 80 A, 1000 V, (W x H x D) 148 x 168 x 68 mm, screw mounting/DIN rail, 3KD2840-0NE20-0](/en/images/e6c/G-I202-XX-23365P/95x95/load-break-switch-4-pole-80-a-1000-v-w-x-h-x-d-148-x-168-x-68-mm-screw-mounting-din-rail-3kd2840-0ne20-0.png)
![Load-break switch, 4 pole, 1250 A, 1000 V, (W x H x D) 484.5 x 310 x 154 mm, screw mounting, 3KD5244-0RE10-0](/en/images/beb/G-I202-XX-29530P/95x95/load-break-switch-4-pole-1250-a-1000-v-w-x-h-x-d-484-5-x-310-x-154-mm-screw-mounting-3kd5244-0re10-0.png)
![Main switch, Rotary actuator, 4 pole, 40 A, 690 V, (W x H x D) 49 x 60 x 77 mm, fixed mounting, 3LD3330-0TL11](/en/images/26e/G-I202-XX-38532P/95x95/main-switch-rotary-actuator-4-pole-40-a-690-v-w-x-h-x-d-49-x-60-x-77-mm-fixed-mounting-3ld3330-0tl11.png)
![Switch-disconnector with fuse, 2 pole, 630 A, (W x H x D) 590 x 198 x 308 mm, 3NJ6332-3AA00-0AA0](/en/images/8a4/G-I202-XX-58266P/95x95/switch-disconnector-with-fuse-2-pole-630-a-w-x-h-x-d-590-x-198-x-308-mm-3nj6332-3aa00-0aa0.png)
![Load-break switch, Rotary actuator, 3 pole, 125 A, 1000 V, (W x H x D) 121 x 168 x 97 mm, screw mounting/DIN rail, 3KD3232-0NE10-0](/en/images/c49/G-I202-XX-23364P/95x95/load-break-switch-rotary-actuator-3-pole-125-a-1000-v-w-x-h-x-d-121-x-168-x-97-mm-screw-mounting-din-rail-3kd3232-0ne10-0.png)
![Load-break switch, 4 pole, 250 A, 1000 V, (W x H x D) 157.3 x 126 x 69.5 mm, screw mounting/DIN rail, 3KD3844-0NE10-0](/en/images/e56/G-I202-XX-29526P/95x95/load-break-switch-4-pole-250-a-1000-v-w-x-h-x-d-157-3-x-126-x-69-5-mm-screw-mounting-din-rail-3kd3844-0ne10-0.png)
![Switch-disconnector with fuse, 3 pole, 125 A, (W x H x D) 190 x 150 x 161.5 mm, base mounting, 3KF2312-0LF11](/en/images/234/G-I202-XX-36450P/95x95/switch-disconnector-with-fuse-3-pole-125-a-w-x-h-x-d-190-x-150-x-161-5-mm-base-mounting-3kf2312-0lf11.png)
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.