... operation of contactor, relay, lighting electrical SCBK60 Explosion- Proof Control Box Apply to control the on-off operation of contactor, relay, lighting and ... AC 50Hz, 220V/380V, DC voltage up to 220.The control box is composed of secure shell, Explosion-proof elements (signal indicator ... ,welcome to send us your sample and we can provide with you what you want.We promise you that the quality ...