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Product Details

1. Whole sealing design, it has eight specifications between 63A and 4000A on basic mode of modularized design.
2. The enclosure adopts Dough Molding Compound (called DMC), which has excellent features of dielectric property, flame retardant property, impact resistance and resistance to carbonization.
3. It adopts operating mechanism of elastic-accumulating, speed for contact making and breaking achieves 50KM/H, it has no relationship with the speed for operating handle, there is zero arcover on the surface of switch.
4. Contact framework adopts special double breakpoint horizontal design and pressed spring leaf double bridge design. It adopts making and breaking technique of horizontal sliding design. It has excellent dynamic stability and a big distance between moving contact and fixed contact in off state.
5. All contact materials are made of copper plated with silver alloy, and possess two separate contact surfaces.
6. Auxiliary contacts can be assembled.
7. The electric cable insulating cover can be assembled.
8. It has three poles, four poles and various forms of front operation, side operation, internal operation, external operation, back operation and back wired etc.


Conventional thermal current Ith (A) 3150 4000
Rated current Ie (A) 3150 4000
Rated insulation voltage Ui (V) 750 750
Dielectric strength (V)
Rated impulse withstand voltage Uimp kV 6 6
Rated operational current Ie (A)
380V AC22B 3150
AC23A
AC23B
690V AC20A 3150
AC20B 4000
Overload capacity
Rated short-time withstand current Icw (kA)0.1s/1.0s 90/50 150/70
Making and breaking capacity (A Rms)
Rated breaking capacity 380V 9450
Rated making capacity 380V 9450
Rated short-circuit making capacity Icm (KA peak value) 105
Operation properties
Mechanical durability 380V 300
Electrical durability 380V 100
Mechanical durability 390V 2000 400
Weight(kg) 3 poles 31 90
4 poles 51.5 120


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