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3SM8L, MCCBs with earth leakage protection

Independent power supply with build-in power source,directly draws power from the incoming end to avoid the risk of protection function failure caused by external power supply failure.

● Overload protection
● Short circuit protection
● Isolation
● Controlling
● Used in residential building, non-residential building, industry, energy and infrastructure
Availability:

Functions

●   Protection of plant and equipment against overload or damage by ground faults (ground-fault protection)

●   Protection against fire hazard caused by insulation faults

●   Switching and protection devices for motors, transformersand capacitors

●   Disconnector units with features for stopping and switching off in an emergency in conjunction with lockable rotary operating mechanisms and terminal covers


Instruction of type code

3SM8L.1

●   Here is code of N-pole type for 4 pole circuit breaker:

A: N-pole fixed without over-current release unit, it has been connected all along, and does not act with other three poles to turn on or off

B: N-pole fixed without over-current release unit, it acts with other three poles


Technical Specifications

3SM8L.2


Tripping characteristic

●   For power distribution

3SM8L.3


●   For power distribution

3SM8L.4


Action time of residual current protection

3SM8L.5


Outline and installation dimensions

3SM8L.6


For power distribution

3SM8L.7


For motor protection

3SM8L.8


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