Circuit Breakers
![Emergency stop/main switch, Rotary actuator, 3 pole, 20 A, (W x H) 60 x 60 mm, VCDN20](/en/images/e84/VCDN12-VCDN20/95x95/emergency-stop-main-switch-rotary-actuator-3-pole-20-a-w-x-h-60-x-60-mm-vcdn20.png)
![Fuse load-break switch, 3 pole, 16 A, 400 V, (W x H x D) 54 x 88 x 74 mm, fixed mounting, MGN01316](/en/images/dd1/PB110952/95x95/fuse-load-break-switch-3-pole-16-a-400-v-w-x-h-x-d-54-x-88-x-74-mm-fixed-mounting-mgn01316.png)
![Basic switch, Push actuator, 4 pole, 1200 A, 1000 V, (W x H x D) 493 x 300 x 300 mm, Drawout, LV848267](/en/images/1f1/LV848267/95x95/basic-switch-push-actuator-4-pole-1200-a-1000-v-w-x-h-x-d-493-x-300-x-300-mm-drawout-lv848267.png)
![Disconnector, Push actuator, 3 pole, 1250 A, 1000 V, (W x H x D) 442 x 352 x 297 mm, fixed mounting, 48034](/en/images/fdd/PB104404/95x95/disconnector-push-actuator-3-pole-1250-a-1000-v-w-x-h-x-d-442-x-352-x-297-mm-fixed-mounting-48034.png)
![Trip unit MicroLogic 5.0 P, Compact NS630b to NS1600 fixed, selective protections](/en/images/015/ODA47058/95x95/trip-unit-micrologic-5-0-p-compact-ns630b-to-ns1600-fixed-selective-protections.png)
![Basic switch, Push actuator, 4 pole, 1000 A, 1000 V, (W x H x D) 537 x 352 x 300 mm, fixed mounting, LV848026](/en/images/d65/LV848026/95x95/basic-switch-push-actuator-4-pole-1000-a-1000-v-w-x-h-x-d-537-x-352-x-300-mm-fixed-mounting-lv848026.png)
![Disconnector with visible interruption, Rotary actuator, 4 pole, 1250 A, 1000 V, (W x H x D) 340 x 300 x 146.5 mm, fixed mounting, 31363](/en/images/c23/ODA31363/95x95/disconnector-with-visible-interruption-rotary-actuator-4-pole-1250-a-1000-v-w-x-h-x-d-340-x-300-x-146-5-mm-fixed-mounting-31363.png)
![Basic switch, Push actuator, 4 pole, 1000 A, 1000 V, (W x H x D) 346 x 301 x 209 mm, fixed mounting, LV847137](/en/images/9ae/LV847137/95x95/basic-switch-push-actuator-4-pole-1000-a-1000-v-w-x-h-x-d-346-x-301-x-209-mm-fixed-mounting-lv847137.png)
![Cast-iron enclosed disconnector, Rotary actuator, 3 pole, 2500 A, 1000 V, (W x H x D) 347.5 x 440 x 227.5 mm, fixed mounting, 31340](/en/images/1c3/ODA31340/95x95/cast-iron-enclosed-disconnector-rotary-actuator-3-pole-2500-a-1000-v-w-x-h-x-d-347-5-x-440-x-227-5-mm-fixed-mounting-31340.png)
![Basic switch, Push actuator, 3 pole, 1600 A, 1000 V, (W x H x D) 378 x 300 x 300 mm, Drawout, LV848276](/en/images/e98/LV848276/95x95/basic-switch-push-actuator-3-pole-1600-a-1000-v-w-x-h-x-d-378-x-300-x-300-mm-drawout-lv848276.png)
![Load-break switch, toggle actuator, 3 pole, 600 A, 750 V, (W x H x D) 140 x 340 x 110 mm, DIN rail, NLLL36000S60X](/en/images/8af/ODANLLL36000S60X/95x95/load-break-switch-toggle-actuator-3-pole-600-a-750-v-w-x-h-x-d-140-x-340-x-110-mm-din-rail-nlll36000s60x.png)
![Basic switch, Push actuator, 3 pole, 1200 A, 1000 V, (W x H x D) 378 x 300 x 300 mm, Drawout, LV848262](/en/images/9ec/LV848262/95x95/basic-switch-push-actuator-3-pole-1200-a-1000-v-w-x-h-x-d-378-x-300-x-300-mm-drawout-lv848262.png)
![Changeover switch, Rotary actuator, 3 pole, 12 A, 690 V, (W x H x D) 45 x 45 x 97 mm, front mounting, K1F003ULH](/en/images/0f5/K2F003ULH-1/95x95/changeover-switch-rotary-actuator-3-pole-12-a-690-v-w-x-h-x-d-45-x-45-x-97-mm-front-mounting-k1f003ulh.png)
![Remotely switchable circuit breaker, toggle actuator, 3 pole, 63 A, 500 V, (W x H x D) 99 x 84 x 77 mm, fixed mounting, A9C61363](/en/images/257/PB115439/95x95/remotely-switchable-circuit-breaker-toggle-actuator-3-pole-63-a-500-v-w-x-h-x-d-99-x-84-x-77-mm-fixed-mounting-a9c61363.png)
![BCD coding switch, Rotary actuator, 1 pole, 12 A, 690 V, (W x H x D) 45 x 50 x 59 mm, front mounting, K1D009B](/en/images/c83/K1-K2-638-CPODA2016002/95x95/bcd-coding-switch-rotary-actuator-1-pole-12-a-690-v-w-x-h-x-d-45-x-50-x-59-mm-front-mounting-k1d009b.png)
![Cam-operated switch, Rotary actuator, 3 pole, 20 A, 690 V, (W x H) 45 x 45 mm, fixed mounting, K2C503H](/en/images/8dc/K1-K2-638-CPODA2016113/95x95/cam-operated-switch-rotary-actuator-3-pole-20-a-690-v-w-x-h-45-x-45-mm-fixed-mounting-k2c503h.png)
![Load-break switch, Rotary actuator, 3 pole, 25 A, (W x H x D) 55 x 74 x 106 mm, fixed mounting, VVE0](/en/images/f25/ODAPG121022-SE/95x95/load-break-switch-rotary-actuator-3-pole-25-a-w-x-h-x-d-55-x-74-x-106-mm-fixed-mounting-vve0.png)
![Load-break switch, toggle actuator, 3 pole, 150 A, 750 V, (W x H x D) 104 x 163 x 86 mm, DIN rail, NHLF36000S15TW](/en/images/e2b/ODANHLF36000S15TW/95x95/load-break-switch-toggle-actuator-3-pole-150-a-750-v-w-x-h-x-d-104-x-163-x-86-mm-din-rail-nhlf36000s15tw.png)
![Basic switch, Push actuator, 4 pole, 800 A, 1000 V, (W x H x D) 537 x 352 x 300 mm, fixed mounting, LV848008](/en/images/296/LV848008/95x95/basic-switch-push-actuator-4-pole-800-a-1000-v-w-x-h-x-d-537-x-352-x-300-mm-fixed-mounting-lv848008.png)
![Basic switch, Push actuator, 4 pole, 630 A, 1000 V, (W x H x D) 306.5 x 259.5 x 207.5 mm, Drawout, LV847209](/en/images/f2a/LV847209/95x95/basic-switch-push-actuator-4-pole-630-a-1000-v-w-x-h-x-d-306-5-x-259-5-x-207-5-mm-drawout-lv847209.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.