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  • 3A SINGLE POLE 6kA B CURVE MCB | MK Circuit Protection

3A SINGLE POLE 6kA B CURVE MCB

  • Designed to fully comply with the requirements of IEC / BS EN 60898
  • Positive contact status indication
  • Trip-free mechanism
  • Tunnel type, captive terminals
  • 25mm2 terminal capacity
  • Can be used as an isolating switch
  • Protective shutter
  • Suitable for installation in all MK Circuit Protection consumer units
  • B/C/D curve optional
  • SKU: H5903S
  • Categories: 6kA circuit breaker, MCB

Stock:  9892 pcs

Specification

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Rated Short Circuit Capacity ICN 6000A
Rated Current 3A
Tripping Characteristics B Curve
Number Of Poles 1P
Voltage Rating AC 230V
Standard IEC / BS EN 60898
Energy Limiting Class 3
Degree of Pollution 2
IP Rating Front face IP4X, screw IP2X
Product Certification CB,CE, UKCA
Mechanical Durability 10,000 cycles
Ambient Operating Temperature -5°C to + 55°C
Calibration Temperature +30°C
Max. Installation Altitude 2000 metres
Material PA6 Nylon
Dimensions (height) 83mm x (width) 18mm x (depth)67mm
Weight 0.11Kg
Mounting Din-Rail
Terminal Capacity 25mm²
Tightening Torque 3Nm
Description MK Cicuit Protection MCBs are of the thermo-magnetic, current limiting type and are available with either Type B or Type C operating characteristics. The thermal component is carefully calibrated, thermally operated bi-metal element. Larger overloads and fault current situations are dealt with using the magnetic tripping mode of the MCB. This acts very quickly, overriding the thermal operation. IEC / BS EN 60898 requires the tripping to occur within 100 milliseconds and when short circuit happens and the design of the MK Sentry MCB allows fault currents up to 6000A/10,000A to be safely interrupted within this time-scale. Positive contact status indication When the green indicator is visible, then a contact gap of 4mm has been achieved. MK Sentry MCBs may therefore be used as single pole isolating switches where appropriate. The operating dolly may be locked in either the ON or OFF position without affecting the ability of the trip mechanism to operate. The contacts themselves are manufactured from carefully chosen materials, selected specifically for their low electrical resistance and low propensity to weld under fault conditions.

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