Type1+2 SPD combines the characteristics of Type 1 and Type 2, providing two-level protection. This type of protector first guides most of the surge current to ground through Type 1 protector, and then further reduces the remaining surge current through Type 2 protector.
Type 1+2 Surge Protective Device
Specification:
- Nominal voltage Un: 60V 120V 230V 400V
- Max. continuous operating voltage Uc: 75V 150V 275V 320V 385V 440V
- Type 1+2 / Class I +Ⅱ/ Class B+C
- Impulse discharge current (10/350 μs) Iimp = 12.5kA @ Type 1
- Nominal discharge current (8/20 μs) In = 20kA @ Type 2
- Maximum discharge current (8/20 μs) Imax =50kA @ Type 2
- Protective elements: Metal Oxide Varistor (MOV), Gas Discharge Tube (GDT)
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