Circuit Breakers
![Mains switch, Rotary actuator, 4 pole, 100 A, 800 V, (W x H x D) 340 x 245 x 73.5 mm, screw mounting/DIN rail, 3KC6430-2TA20-0TA3](/en/images/aa9/G-I202-XX-34336P/95x95/mains-switch-rotary-actuator-4-pole-100-a-800-v-w-x-h-x-d-340-x-245-x-73-5-mm-screw-mounting-din-rail-3kc6430-2ta20-0ta3.png)
![Main switch, Rotary actuator, 3 pole, 16 A, 690 V, (W x H x D) 67 x 84 x 429.5 mm, front installation/DIN rail, 3LD2013-0TK51](/en/images/508/G-I202-XX-33187P/95x95/main-switch-rotary-actuator-3-pole-16-a-690-v-w-x-h-x-d-67-x-84-x-429-5-mm-front-installation-din-rail-3ld2013-0tk51.png)
![Emergency stop load-break switch, Rotary actuator, 3 pole, 16 A, 690 V, (W x H x D) 67 x 84 x 429.5 mm, front installation/DIN rail, 3LD2013-0TK53](/en/images/58b/G-I202-XX-31940P/95x95/emergency-stop-load-break-switch-rotary-actuator-3-pole-16-a-690-v-w-x-h-x-d-67-x-84-x-429-5-mm-front-installation-din-rail-3ld2013-0tk53.png)
![Emergency stop load-break switch, Rotary actuator, 3 pole, 16 A, 690 V, (W x H x D) 67 x 75 x 385 mm, front installation/DIN rail, 3LD2017-0TK13](/en/images/dad/G-I202-XX-33168P/95x95/emergency-stop-load-break-switch-rotary-actuator-3-pole-16-a-690-v-w-x-h-x-d-67-x-75-x-385-mm-front-installation-din-rail-3ld2017-0tk13.png)
![Main switch, Rotary actuator, 3 pole, 16 A, 690 V, (W x H x D) 49 x 66 x 89.5 mm, front mounting, 3LD2022-0TK11](/en/images/597/G-I202-XX-31937P/95x95/main-switch-rotary-actuator-3-pole-16-a-690-v-w-x-h-x-d-49-x-66-x-89-5-mm-front-mounting-3ld2022-0tk11.png)
![Emergency stop load-break switch, Rotary actuator, 3 pole, 16 A, 690 V, (W x H x D) 49 x 66 x 89.5 mm, front mounting, 3LD2022-0TK13](/en/images/bc7/G-I202-XX-31938P/95x95/emergency-stop-load-break-switch-rotary-actuator-3-pole-16-a-690-v-w-x-h-x-d-49-x-66-x-89-5-mm-front-mounting-3ld2022-0tk13.png)
![Emergency stop load-break switch, Rotary actuator, 3 pole, 16 A, 690 V, (W x H x D) 53 x 45 x 91 mm, DIN rail, 3LD2030-0TK13](/en/images/079/G-I202-XX-32012P/95x95/emergency-stop-load-break-switch-rotary-actuator-3-pole-16-a-690-v-w-x-h-x-d-53-x-45-x-91-mm-din-rail-3ld2030-0tk13.png)
![Main switch, Rotary actuator, 4 pole, 16 A, 690 V, (W x H x D) 53 x 45 x 91 mm, DIN rail, 3LD2030-1TL11](/en/images/00e/G-I202-XX-33164P/95x95/main-switch-rotary-actuator-4-pole-16-a-690-v-w-x-h-x-d-53-x-45-x-91-mm-din-rail-3ld2030-1tl11.png)
![Main switch, Rotary actuator, 3 pole, 16 A, 690 V, (W x H x D) 100 x 152 x 117 mm, front mounting, 3LD2064-0TB51](/en/images/eb9/G-I202-XX-32475P/95x95/main-switch-rotary-actuator-3-pole-16-a-690-v-w-x-h-x-d-100-x-152-x-117-mm-front-mounting-3ld2064-0tb51.png)
![Changeover switch, Rotary actuator, 3 pole, 32 A, 690 V, (W x H x D) 67 x 92 x 103 mm, front mounting, 3LD2223-7UK01](/en/images/d68/G-I202-XX-33008P/95x95/changeover-switch-rotary-actuator-3-pole-32-a-690-v-w-x-h-x-d-67-x-92-x-103-mm-front-mounting-3ld2223-7uk01.png)
![Load-break switch, Rotary actuator, 2 pole, 32 A, 800 V, (W x H x D) 98 x 128 x 129 mm, DIN rail, 3LD2230-8VQ11-0AF6](/en/images/6fa/G-I202-XX-33034P/95x95/load-break-switch-rotary-actuator-2-pole-32-a-800-v-w-x-h-x-d-98-x-128-x-129-mm-din-rail-3ld2230-8vq11-0af6.png)
![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, 3LD2264-0TB53](/en/images/d0b/G-I202-XX-32538P/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-3ld2264-0tb53.png)
![Changeover switch, Rotary actuator, 4 pole, 160 A, 690 V, (W x H x D) 299 x 149 x 94 mm, front mounting, 3LD2318-7UL01](/en/images/eaa/G-I202-XX-32034P/95x95/changeover-switch-rotary-actuator-4-pole-160-a-690-v-w-x-h-x-d-299-x-149-x-94-mm-front-mounting-3ld2318-7ul01.png)
![Main switch, Rotary actuator, 3 pole, 160 A, 690 V, (W x H x D) 112 x 169 x 94 mm, DIN rail, 3LD2330-0TK11](/en/images/177/G-I202-XX-32921P/95x95/main-switch-rotary-actuator-3-pole-160-a-690-v-w-x-h-x-d-112-x-169-x-94-mm-din-rail-3ld2330-0tk11.png)
![Emergency stop load-break switch, Rotary actuator, 3 pole, 250 A, 690 V, (W x H x D) 112 x 169 x 94 mm, front mounting, 3LD2405-0TK13](/en/images/80a/G-I202-XX-32936P/95x95/emergency-stop-load-break-switch-rotary-actuator-3-pole-250-a-690-v-w-x-h-x-d-112-x-169-x-94-mm-front-mounting-3ld2405-0tk13.png)
![Changeover switch, Rotary actuator, 3 pole, 250 A, 690 V, (W x H x D) 224 x 149 x 106 mm, front mounting, 3LD2405-7UK01](/en/images/54b/G-I202-XX-32904P/95x95/changeover-switch-rotary-actuator-3-pole-250-a-690-v-w-x-h-x-d-224-x-149-x-106-mm-front-mounting-3ld2405-7uk01.png)
![Changeover switch, Rotary actuator, 4 pole, 250 A, 690 V, (W x H x D) 299 x 149 x 106 mm, front mounting, 3LD2405-7UL01](/en/images/ec6/G-I202-XX-32910P/95x95/changeover-switch-rotary-actuator-4-pole-250-a-690-v-w-x-h-x-d-299-x-149-x-106-mm-front-mounting-3ld2405-7ul01.png)
![Main switch, Rotary actuator, 3 pole, 250 A, 690 V, (W x H x D) 112 x 169 x 94 mm, front mounting, 3LD2418-0TK11](/en/images/f75/G-I202-XX-32918P/95x95/main-switch-rotary-actuator-3-pole-250-a-690-v-w-x-h-x-d-112-x-169-x-94-mm-front-mounting-3ld2418-0tk11.png)
![Emergency stop load-break switch, Rotary actuator, 3 pole, 250 A, 690 V, (W x H x D) 112 x 169 x 94 mm, front mounting, 3LD2418-0TK13](/en/images/a7d/G-I202-XX-32939P/95x95/emergency-stop-load-break-switch-rotary-actuator-3-pole-250-a-690-v-w-x-h-x-d-112-x-169-x-94-mm-front-mounting-3ld2418-0tk13.png)
![Changeover switch, Rotary actuator, 3 pole, 63 A, 690 V, (W x H x D) 212 x 302 x 181 mm, front mounting, 3LD2566-7UB01](/en/images/220/G-I202-XX-32566P/95x95/changeover-switch-rotary-actuator-3-pole-63-a-690-v-w-x-h-x-d-212-x-302-x-181-mm-front-mounting-3ld2566-7ub01.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.