480 Volt Shunt Trip Wiring Diagram

Branch h frame 18k board circuit breakers.

480 volt shunt trip wiring diagram. Transformer sizing 208x60x1 73 49 82kva purchase a 75 kva transformer line side wire and ocp sizing 75kva divided by 1 73x208 208 amp line side 4 0 thhw 2 copper wire size ocp 208amp x 1 25 260 amp ocp 300. Eaton ghb3030s1 breaker 30a 3p 277 480v type ghb 10 kaic bolt on shunt trip 30 amp 3 pole miniature industrial circuit breaker type ghb quicklag bolt on 10 kaic 277 480 volt ac 125 250 volt dc includes shunt trip. Shunt trip breaker wiring diagram this post is about the single wiring diagram of mccb shunt trip breaker. One application of a shunt trip breaker is in the fire life safety system.

Meter shunt fuse. As you know that electricity is dangerous but it s become more dangerous when it s upgrade from the 220 volts to 3 phase 440 volts. Shunt trip circuit breakers are usually rated three phase 480v or higher and are installed in the same way as other three phase circuit breakers with extra remote control circuits to operate the shunt trip and indicate remotely whether the shunt trip circuit breaker has actually opened. Shunt trip breaker wiring diagram which related with safety and protection of electricity.

Shunt trip breaker 125 ampere 3 pole bolt on molded case thermal magnetic circuit breaker. Shunt trips accessories in qo breakers are factory installed only and can not be added to an existing breaker. When there is a fire sprinkler installed in the elevator machine room the power to the elevator is cut off automatically by means of a shunt trip when the heat detector. Wiring diagram book a1 15 b1 b2 16 18 b3 a2 b1 b3 15 supply voltage 16 18 l m h 2 levels b2 l1 f u 1 460 v f u 2 l2 l3 gnd h1 h3 h2 h4 f u 3 x1a f u 4 f u 5 x2a r power on optional x1 x2115 v 230 v h1 h3 h2 h4 optional connection electrostatically shielded transformer f u 6 off on m l1 l2 1 2 stop ol m start 3.

I have 3 phase 208 volt at the mdp. I have a 60 amp 3 phase 480 volt equipment. In the diagram a mccb molded case circuit breaker shown which is wired for 3 phase system.