... 1,New multi-purpose jack,meet the single phase two line,single phase three line device 2.5A Surge Protector Power Adapter Products ... jack,resonnable and relaxed jack space can meet single phase two wires,single phase three wires deviceSurge protector combine with power ... equipment,please strictly according to thelogo wiring (L,N,) Grounding line of high quality less than 2.5 m2(squre mm ...