Phase selector with voltage and current protection

Rated supply voltage: AC 3*220V
Max load current: 100A or 63A Current
protection:1-100A adjustable or 1-63A adjustable
Operation voltage range: AC140V-300V
Rated frequency:50/60Hz
Hysteresis:Over voltage and asymmetry:5V,
Under voltage:3VAsymmetry trip delay: 10s
Voltage measurement accuracy: ≤1%(over the whole range)
Rated insulation voltage: 450V
Output contact: 1NO
Electrical life:100000
Mechanical life: 100000
Protection degree: IP20
Pollution degree: 3
Altitude: ≤2000m
Humidity: <50% at 40'C(without condensation)