... Switch was consist by two units MCB or MCCB in 3P,4P and their accessory (Auxiliary ,warning contact,)machine interlock parts ... .)Model:Q2ERated Current: 10A,63A,100A,225A,400A,630A,800APoles:3P,4PMore:1.split type2.short circuit, overload protection ,fire protection ... phase protection. Automatic transfer switch ATS 220V Q2E 100-800A 3P,4P