... up to 45A AC-53bPotential free control inputLED-indications for power supply, ramping, bypassing relaysSelf protection against overheatingAuxiliary relay output ... Machine XCJH 1 5.0 Acceptable DC Power Shanghai Huayi, HY3020 1 3.0 Acceptable DC Power Shanghai Huayi, HY3003D-2 1 3 ... Operation Box HAPN, OB-HPVFV 4 2.0 Acceptable Power Frequency Withstand Voltage Tester Nanjing Changsheng, CS2674A 1 8. ...