+84-28-3742 1888
+84-28-3742 1888

MSL7 Residual Current Circuit BreakerCurrent

  • MSL7 residual current device is in conformity with the standards of IEC61008. It can cut off the fault circuit immediately on the occasion of shock hazard or earth leakage of trunk line. Thus it is suitable to avoid the shock hazard and fire caused by earth leakage. It can be used in circuits up to single phase 240V, threephase 415V, 50 or 60Hz.


1. Main Technical Parameter.


Type MSL7
Pole 2P, 4P
Rated current In(A) 25,40,63,80,100
Rated residual operating current (I∆nA) 10,30,100,300,500
Rated non-operating current for earth leakage I∆n(A) 0.5I∆n
Voltage Un(V) 240(220) 415(380)
Residual current off-time: <0.1s
Minimum value of rated making and breaking capacity 1KA
Rated conditional short-circuit current (Inc) In=25,40A Inc=1500A In=63A Inc=3000A


We are also one of the leading manufacturers and exporters of a wide range of SMC Pole Mounted Junction Boxes (Street Light Boxes). These are manufactured using high grade material and are provided with a protection cover to avoid shocks. These boxes are highly durable and are offered in standard specifications to our clients.

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We apply a policy of continuous development of its products and reserves the right to make changes in the specifications and technical characteristics without notice, For further information please contact Morstar.

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