Circuit Breakers
![Cast-iron enclosed disconnector, Rotary actuator, 4 pole, 800 A, 1000 V, (W x H x D) 410 x 300 x 146.5 mm, fixed mounting, 31345](/en/images/2ad/PB111515/95x95/cast-iron-enclosed-disconnector-rotary-actuator-4-pole-800-a-1000-v-w-x-h-x-d-410-x-300-x-146-5-mm-fixed-mounting-31345.png)
![Circuit breaker, toggle actuator, 3 pole, 150 A, 750 V, (W x H x D) 104 x 163 x 86 mm, DIN rail, NHJF36060TW](/en/images/441/PB111136/95x95/circuit-breaker-toggle-actuator-3-pole-150-a-750-v-w-x-h-x-d-104-x-163-x-86-mm-din-rail-nhjf36060tw.png)
![Switch-disconnector with fuse, Rotary actuator, 4 pole, 160 A, 750 V, (W x H x D) 240 x 162 x 136.5 mm, mounting plate, GS2L4](/en/images/371/PB114125/95x95/switch-disconnector-with-fuse-rotary-actuator-4-pole-160-a-750-v-w-x-h-x-d-240-x-162-x-136-5-mm-mounting-plate-gs2l4.png)
![Disconnector with visible interruption, Rotary actuator, 3 pole, 1600 A, 1000 V, (W x H x D) 340 x 300 x 146.5 mm, fixed mounting, 31364](/en/images/2e0/ODA31364/95x95/disconnector-with-visible-interruption-rotary-actuator-3-pole-1600-a-1000-v-w-x-h-x-d-340-x-300-x-146-5-mm-fixed-mounting-31364.png)
![Load-break switch, toggle actuator, 1 pole, 100 A, 250 V, (W x H x D) 18 x 85 x 73 mm, fixed mounting, A9S66191](/en/images/2d5/PB110909/95x95/load-break-switch-toggle-actuator-1-pole-100-a-250-v-w-x-h-x-d-18-x-85-x-73-mm-fixed-mounting-a9s66191.png)
![Basic switch, Push actuator, 4 pole, 800 A, 1000 V, (W x H x D) 537 x 352 x 300 mm, fixed mounting, LV848009](/en/images/05b/LV848009/95x95/basic-switch-push-actuator-4-pole-800-a-1000-v-w-x-h-x-d-537-x-352-x-300-mm-fixed-mounting-lv848009.png)
![Step switch, Rotary actuator, 1 pole, 12 A, 690 V, (W x H x D) 45 x 50 x 59 mm, front mounting, K1D004QCH](/en/images/62a/K1-K2-638-CPODA2016031/95x95/step-switch-rotary-actuator-1-pole-12-a-690-v-w-x-h-x-d-45-x-50-x-59-mm-front-mounting-k1d004qch.png)
![Basic switch, Push actuator, 4 pole, 630 A, 1000 V, (W x H x D) 346 x 301 x 209 mm, fixed mounting, LV847117](/en/images/b57/LV847117/95x95/basic-switch-push-actuator-4-pole-630-a-1000-v-w-x-h-x-d-346-x-301-x-209-mm-fixed-mounting-lv847117.png)
![Cam switch, Rotary/key actuator, 1 pole, 12 A, 690 V, (W x H x D) 55 x 100 x 53 mm, front mounting, K1B001UZ4](/en/images/92a/K1-K2-638-CPODA2016090/95x95/cam-switch-rotary-key-actuator-1-pole-12-a-690-v-w-x-h-x-d-55-x-100-x-53-mm-front-mounting-k1b001uz4.png)
![Basic switch, Push actuator, 4 pole, 1250 A, 1000 V, (W x H x D) 493 x 300 x 300 mm, Drawout, LV848228](/en/images/f9d/LV848228/95x95/basic-switch-push-actuator-4-pole-1250-a-1000-v-w-x-h-x-d-493-x-300-x-300-mm-drawout-lv848228.png)
![Load-break switch, toggle actuator, 3 pole, 32 A, 500 V, (W x H x D) 36 x 77 x 70 mm, fixed mounting, A9S60332](/en/images/ef4/A9S60332/95x95/load-break-switch-toggle-actuator-3-pole-32-a-500-v-w-x-h-x-d-36-x-77-x-70-mm-fixed-mounting-a9s60332.png)
![Control unit, 4 pole, 2500 A, Drawout, 65281](/en/images/b9c/ODA48640/95x95/control-unit-4-pole-2500-a-drawout-65281.png)
![Operating mechanism, flange mounted, variable depth, 60A, 600 V, fuseholder, switch mechanism, 6 inch handle, NEMA 4](/en/images/83f/9422ATDF631-DA20/95x95/operating-mechanism-flange-mounted-variable-depth-60a-600-v-fuseholder-switch-mechanism-6-inch-handle-nema-4.png)
![Disconnector, Rotary actuator, 3 pole, 32 A, (W x H x D) 82.5 x 131 x 106 mm, VCFN40GE](/en/images/93c/ODAVCFNGE/95x95/disconnector-rotary-actuator-3-pole-32-a-w-x-h-x-d-82-5-x-131-x-106-mm-vcfn40ge.png)
![Basic switch, Push actuator, 4 pole, 1000 A, 1000 V, (W x H x D) 346 x 301 x 209 mm, fixed mounting, LV847138](/en/images/c66/LV847138/95x95/basic-switch-push-actuator-4-pole-1000-a-1000-v-w-x-h-x-d-346-x-301-x-209-mm-fixed-mounting-lv847138.png)
![Basic switch, Push actuator, 3 pole, 1000 A, 1000 V, (W x H x D) 236.5 x 259.5 x 207.5 mm, Drawout, LV846452](/en/images/3bd/LV846452/95x95/basic-switch-push-actuator-3-pole-1000-a-1000-v-w-x-h-x-d-236-5-x-259-5-x-207-5-mm-drawout-lv846452.png)
![Circuit breaker, toggle actuator, 4 pole, 100 A, 690 V, (W x H x D) 100 x 130 x 60 mm, fixed mounting, EZC100H4080](/en/images/685/CPB100603/95x95/circuit-breaker-toggle-actuator-4-pole-100-a-690-v-w-x-h-x-d-100-x-130-x-60-mm-fixed-mounting-ezc100h4080.png)
![Circuit breaker, Push actuator, 4 pole, 630 A, 1000 V, (W x H x D) 358 x 322 x 277 mm, Drawout, 47205](/en/images/5ab/PB104402/95x95/circuit-breaker-push-actuator-4-pole-630-a-1000-v-w-x-h-x-d-358-x-322-x-277-mm-drawout-47205.png)
![Circuit breaker for transformer protection, Rotary actuator, 3 pole, 0.2 A, 690 V, (W x H x D) 45 x 106 x 97 mm, DIN rail, 3RV2411-0BA20](/en/images/ac8/G-NSA0-XX-93056P/95x95/circuit-breaker-for-transformer-protection-rotary-actuator-3-pole-0-2-a-690-v-w-x-h-x-d-45-x-106-x-97-mm-din-rail-3rv2411-0ba20.png)
![Circuit breaker for system protection, Rotary actuator, 3 pole, 60 A, 690 V, (W x H x D) 70 x 170 x 176 mm, rail mounting, 3RV2742-5LD10](/en/images/e4d/G-IC03-XX-18851P/95x95/circuit-breaker-for-system-protection-rotary-actuator-3-pole-60-a-690-v-w-x-h-x-d-70-x-170-x-176-mm-rail-mounting-3rv2742-5ld10.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.