1. Circuit Breaker: Circuit Breaker ngu ai gaw, hkang zing ai cabinet kata na madung daw langai rai nna, circuit ni hpe matut mahkai (sh) daw kau na matu lang ai. Overload (sh) short circuit zawn re ai n kaja ai lam byin wa ai shaloi, circuit breaker gaw circuit hpe lawan ladan daw kau ya nna, wan jak ni hte system ni hpe makawp maga ya ai.
2. Contactor: Contactor ngu ai gaw, wan n-gun hpe matut mahkai (sh) daw kau na matu lang ai wan n-gun arung arai langai mi re. Shi gaw wan n-gun rawng ai ladat hku nna bungli galaw nna, shi a matut mahkai lam ni hpe galaw nna, circuit hpe hpaw nna pat kau ya ai. Control cabinet ni hta, contactor ni hpe lang nna, motor hte nhtoi zawn re ai jak ni hpe hpaw hpang ai hte jahkring kau ai hpe hkang lu ai.
3. Relay: Relay ngu ai gaw circuit ni hpe hkang na matu lang ai wan jak langai mi re. Shi gaw wan n-gun rawng ai ladat hku nna bungli galaw nna, shi a matut mahkai lam ni hpe galaw nna, circuit hpe hpaw nna pat kau ya ai. Control cabinet ni hta, logic hpe hkang ai hte aten hpe jahkring kau ai zawn re ai bungli ni hpe galaw na matu relay ni hpe lang chye ma ai.
4. Fuse: Fuse ngu ai gaw circuit hte wan jak ni hpe makawp maga na matu lang ai wan jak langai mi re. Circuit langai mi hpe grai n-gun ja ai (sh) short-circuit galaw ai shaloi, fuse kata na fuse gaw lawan ladan htum mat nna, circuit hpe daw kau ya nna, wan jak hte system ni hpe n hkra hkra makawp maga ya lu ai.
5. Frequency Converter: Wan jak langai a lawan ai hpe hkang lu na matu lang ai wan jak langai mi hpe tsun ai re. Dai gaw, n-gun jaw ai frequency hte voltage hpe galai shai ai hku nna, motor a lawan ai hpe hkrak hkrak hkang lu ai. Control cabinet ni hta, frequency galai shai ai ni hpe, nbung laru hte pump ni hpe hkang ai zawn re ai, mawdaw a lawan ai hpe hkang ra ai bungli ni hta lang chye ma ai.