Chandru & Co
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S751/3DR-K63


  • Extended Product Type: S751/3DR-K63
  • Product ID: 2CDH781001R2607
  • EAN: 4016779838917
  • Catalog Description: S751/3DR-K63 Selective Main Circuit Breaker
  • Long Description:
    • Selective main circuit-breakers of the S 750 DR series are SMCBs based on DIN VDE 0641-21 with a voltage-independent operating principle.
    • These circuit-breakers do not rely on a control circuit to make or break contact (SHU), making them particularly suitable for use in energy distribution systems with maximum availability requirements.
    • They offer total selectivity to downstream MCBs and outstanding selectivity to upstream protective devices due to their unique current limiting selectivity.


Product Description

ParameterValue
StandardsDIN VDE 0641-21
Tripping CharacteristicK (Selective)
FunctionSingle Pole Switching
Suitable for IsolationYes
Rated Operational Voltage230 / 400 V AC
Rated Insulation Voltage (Ui)According to IEC/EN 60664-1: 690 V
Rated Impulse Withstand Voltage6 kV at 2000 m, 8 kV at Sea Level, 9.8 kV
Dielectric Test Voltage50/60 Hz, 1 min: 2 kV
Rated Current (In)63 A
Rated Short-Circuit Capacity(230 / 400 V AC): 25 kA
Rated Frequency (f)50 / 60 Hz
Power LossAt Rated Operating Conditions per Pole: 8.7 W
Power Supply ConnectionArbitrary
Contact Position IndicationRed ON / Green OFF
Number of Poles3x1
Overvoltage CategoryIV
Tightening Torque2.5 ... 3 N·m
Mounting TypeDIN-Rail
Screw Terminal TypeCable Clamp
Actuator MarkingI / O
Options Provided3x 1 

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