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Hager NCN120A MCB SP Type C 20A 10kA

SKU: NCN120A

MCB 1P 10kA C-20A 1M

Available in delivery or click&collect

EX. VAT: £7.08

Description

Architecture
  • Neutral position
    without neutral
  • Number of poles
    1 P
  • Type of pole
    1 P
  • Curve
    C
Main electrical features
  • Rated operational voltage Ue
    240 / 415 V
  • Type of supply voltage
    AC
Voltage
  • Rated insulation voltage
    500 V
  • Max operating voltage
    440 V
  • Rated impulse withstand voltage
    6000 V
Electric current
  • Rated service breaking capacity Ics AC according IEC 60898-1
    7.5 kA
  • Rated short circuit breaking capacity Icn under 230V AC according IEC60898-1
    10 kA
Electric current / temperature
  • Rating current 30°C
    20 A
Dimensions
  • Depth of installed product
    70 mm
  • Height of installed product
    83 mm
  • Width of installed product
    17.5 mm
Power
  • Total power loss under IN
    2.56 W
Endurance
  • Electric endurance in number of cycles
    4000
  • Number of mechanical operations
    20000
Installation, mounting
  • Tightening torque
    2,8Nm
Equipment
  • Can be accessorized
    Yes
Standards
  • Standard text
    EN 60898-1,AS/NZS 60898-1
  • European directive WEEE
    concerned
Safety
  • Protection index IP
    IP20
Use conditions
  • Operating temperature
    -25…70 °C

Additional information

Product

Circuit Breaker

Product Type

MCB

Pole Configuration

SP

Mounting

DIN Rail

Trip Type

Type C

Short Circuit Rating

10 kA

Cable Capacity

35 (Rigid) 25 (Flexible) mm2

Width

17.5 mm

Current Rating

20 A

Voltage

230 | 400 V

Standards

BS EN 60898

Frequently asked questions

An MCB is an electromechanical device used to protect electrical circuits from overcurrents. It automatically switches off the circuit if the current exceeds a predetermined threshold, thereby preventing damage to wiring, appliances, and other connected equipment.

MCBs are typically used in the consumer unit (fuse box) of single-phase installations. They protect individual circuits that supply power to sockets, lighting, appliances, and other electrical loads within homes, offices, and small businesses.

MCBs are essential for electrical safety in single-phase systems as they prevent overheating and potential fire hazards caused by excessive current flow. They ensure that circuits are automatically disconnected in case of faults such as short circuits or overloads.

When selecting an MCB for a single-phase system, consider:

  • Current Rating: Choose an MCB with a current rating that matches or slightly exceeds the maximum current expected in the circuit it protects.
  • Breaking Capacity: Ensure the MCB has a sufficient breaking capacity to safely interrupt the maximum fault current that could occur in the circuit.
  • Tripping Curve: Select the tripping curve (e.g., B, C, or D) based on the type of load and expected inrush currents to prevent unnecessary tripping.

MCBs used in single-phase installations should comply with relevant standards such as BS EN 60898 or BS EN 60947-2, depending on whether they are intended for domestic or industrial applications. Compliance ensures reliability and safety in operation.

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