RDH5R series fuse-switch disconnector,is applied to industry power distribution network of AC50Hz,rated voltage up ty 660V,rated current up to 630A,and is widely used in the distribute circuit and motor circuit which has high short-circuit current.And it also works as circuit making and breaking unfrequently,or circuit isolator.And it can operate with charged, as protection for short-circuit.
This product conforms the standard of IEC60947-3,GB14048.3.
Struture
The switch is made of glass fiber reinforced unsaturated polyester plastics and manual operate handle,it has high dielectric property,protect capacity,and operation safety.
This switch adopts the spring energy storage, the Accelerated closing mechanism for instantaneous release, Contact structure which can connect and break parallel multi break point at the same time.
This switch adopts the modular design in the 160A,250A,400A type, and 630A type adopts the integral type to ensure safety of charged operation, reliability of making and breaking and short-circuit protection.
This product has 2P,3P,4P(3P+ on-off neutral pole)
Handle cna operate on the switch directly,and also can operate by the external Lengthening shaft.
It can provide the NO-NC auxiliary contact and connection type according to requirement.
Main technical parameter
| Model No. | RDH5R-160 | RDH5R-250 | RDH5R-400 | RDH5R-630 |
| rated insulation voltage Ui | 660V | 660V | 660V | 660V |
| rated frequency | 50HZ | 50HZ | 50HZ | 50HZ |
| Use type | AC-23B | AC-23B | AC-23B | AC-23B |
| rated opeate votlage Ue | 380V | 380V | 380V | 380V |
| rated operate current Ie | 160A | 250A | 400A | 630A |
| rated connecting capacity(peak) | 1600A | 2500A | 4000A | 6300A |
| rated breaking capacity(peak) | 1280A | 2000A | 3200A | 5040A |
| rated ultimate short-circuit current(peak) | 50KA | 50KA | 50KA | 50KA |
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