Circuit Breakers
![HJL36090 Schneider Electric Circuit Breakers](/en/images/e4e/HJL36090-DA/95x95/compact-circuit-breaker-toggle-actuator-3-pole-90-a-750-v-w-x-h-x-d-104-x-163-x-86-mm-hjl36090.webp)
![HDL36035 Schneider Electric Circuit Breakers](/en/images/a8c/HDL36035-DA/95x95/compact-circuit-breaker-toggle-actuator-3-pole-35-a-750-v-w-x-h-x-d-104-x-163-x-86-mm-hdl36035.webp)
![HU366 Schneider Electric Circuit Breakers](/en/images/f4f/HU366-DA/95x95/disconnector-3-pole-600-a-w-x-h-x-d-701-8-x-1276-35-x-257-3-mm-hu366.webp)
![3LD2545-0TK53 Siemens Circuit Breakers](/en/images/53a/G-I202-XX-32994P/95x95/emergency-stop-load-break-switch-rotary-actuator-3-pole-63-a-690-v-w-x-h-x-d-90-x-106-x-468-5-mm-front-installation-din-rail-3ld2545-0tk53.webp)
![3NP5060-0EA86 Siemens Circuit Breakers](/en/images/c42/P-NSE0-XX-00056P/95x95/fuse-load-break-switch-cover-handle-3-pole-160-a-690-v-w-x-h-x-d-134-x-196-x-161-5-mm-mounting-plate-3np5060-0ea86.webp)
![3NP1153-1BC12 Siemens Circuit Breakers](/en/images/9f0/G-I202-XX-22276P/95x95/fuse-load-break-switch-cover-handle-3-pole-400-a-690-v-w-x-h-x-d-209-4-x-306-x-187-6-mm-busbar-3np1153-1bc12.webp)
![K1M023L Schneider Electric Circuit Breakers](/en/images/c83/K1-K2-638-CPODA2016002/95x95/cam-operated-switch-rotary-actuator-3-pole-12-a-690-v-w-x-h-x-d-45-x-50-x-99-mm-front-mounting-k1m023l.webp)
![3LD5610-0TL13 Siemens Circuit Breakers](/en/images/5f4/G-I202-XX-56002P/95x95/emergency-stop-load-break-switch-rotary-actuator-4-pole-125-a-690-v-w-x-h-x-d-151-x-178-x-158-mm-front-mounting-3ld5610-0tl13.webp)
![3KC0438-0PE00-0AA0 Siemens Circuit Breakers](/en/images/e4c/G-I202-XX-35325P/95x95/mains-switch-4-pole-250-a-1000-v-w-x-h-x-d-279-x-164-x-197-2-mm-screw-mounting-3kc0438-0pe00-0aa0.webp)
![3NP1143-1DA14 Siemens Circuit Breakers](/en/images/4f6/G-I202-XX-50979P/95x95/fuse-load-break-switch-cover-handle-3-pole-250-a-690-v-w-x-h-x-d-183-7-x-306-x-146-5-mm-mounting-plate-3np1143-1da14.webp)
![3LD2050-1TL11 Siemens Circuit Breakers](/en/images/618/G-I202-XX-33166P/95x95/main-switch-rotary-actuator-4-pole-16-a-690-v-w-x-h-x-d-49-x-66-x-113-5-mm-front-mounting-3ld2050-1tl11.webp)
![3NP1163-1JC20 Siemens Circuit Breakers](/en/images/998/G-I202-XX-53093P/95x95/fuse-load-break-switch-cover-handle-3-pole-630-a-690-v-w-x-h-x-d-249-4-x-306-x-161-5-mm-busbar-3np1163-1jc20.webp)
![GB2CB16 Schneider Electric Circuit Breakers](/en/images/d9a/PB110899/95x95/circuit-breaker-toggle-actuator-1-pole-10-a-w-x-h-x-d-15-x-74-x-67-mm-mounting-plate-gb2cb16.webp)
![3LD2264-1GP53 Siemens Circuit Breakers](/en/images/997/G-I202-XX-32535P/95x95/emergency-stop-load-break-switch-rotary-actuator-3-pole-32-a-690-v-w-x-h-x-d-100-x-152-x-117-mm-front-mounting-3ld2264-1gp53.webp)
![3KC0352-0RE00-0AA0 Siemens Circuit Breakers](/en/images/102/G-I202-XX-35328P/95x95/mains-switch-3-pole-1250-a-1000-v-w-x-h-x-d-475-x-310-x-311-5-mm-screw-mounting-3kc0352-0re00-0aa0.webp)
![BDF36060 Schneider Electric Circuit Breakers](/en/images/249/PP-B-UM3-std-REP-DA21/95x95/circuit-breaker-toggle-actuator-3-pole-60-a-800-v-w-x-h-x-d-81-x-137-x-80-mm-din-rail-bdf36060.webp)
![LV430788 Schneider Electric Circuit Breakers](/en/images/7f2/ODAPB103222/95x95/circuit-breaker-toggle-actuator-4-pole-40-a-800-v-w-x-h-x-d-140-x-161-x-86-mm-fixed-mounting-lv430788.webp)
![LV431160 Schneider Electric Circuit Breakers](/en/images/6dd/PB103202/95x95/circuit-breaker-toggle-actuator-3-pole-220-a-800-v-w-x-h-x-d-105-x-161-x-86-mm-fixed-mounting-lv431160.webp)
![3NP5260-0EA26 Siemens Circuit Breakers](/en/images/a08/P-NSE0-XX-00496P/95x95/fuse-load-break-switch-cover-handle-3-pole-250-a-690-v-w-x-h-x-d-207-x-300-x-176-mm-mounting-plate-3np5260-0ea26.webp)
![3LD2517-0TK13 Siemens Circuit Breakers](/en/images/293/G-I202-XX-32965P/95x95/emergency-stop-load-break-switch-rotary-actuator-3-pole-63-a-690-v-w-x-h-x-d-67-x-91-x-395-mm-front-installation-din-rail-3ld2517-0tk13.webp)
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.