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4mm Twin and Earth Cable 25m Coil (37A)

4mm twin and earth current carrying capacity

The table below shows the current carrying capacity of 4mm twin and earth cable. This cable is mainly used for Radial socket circuits rated at 32 AMP, also used for immersion heaters and some cookers. As you can see the amount of current the cable can take changes depending on how the cable is installed, Clipped direct is the larger figure as it allows the cable to cool and dissipate the heat out better than when its embedded into a wall.

We have some great posts and pages for further reading and technical information on twin and earth cable

NOMINAL CROSS
SECTIONAL AREA
mm2
REFERENCE METHOD A* (IN CONDUIT IN WALL) Amps REFERENCE METHOD C* (CLIPPED DIRECT) Amps VOLTAGE DROP mV/A/m
4mm 26 Amps 37 Amps 11