Description
2.2 Ergonomic design
3VA molded case circuit breakers with UL and IEC certification
30
Manual, 01/2019, L1V30435333-01
Indication of breaker positions in the draw-out unit
The picture below illustrates the colors used to indicate the breaker position in the draw-out
unit:
The breaker position is indicated in a window of the draw-out unit and is clearly color-coded,
enabling immediate identification of the current position of the molded case circuit breaker.
The draw-out unit has three positions:
●
CONNECT:
The molded case circuit breaker is connected to the main circuit. The auxiliary circuits are
also connected.
●
TEST:
In the TEST position, the main contacts of the molded case circuit breaker are not
connected to the main circuit, but the auxiliary components are connected to the control
circuit. This allows the functionality of the auxiliary circuit and all of its components
(auxiliary switches, auxiliary releases, communication, etc.) to be tested when the main
circuit is open.
●
DISCONNECT:
The molded case circuit breaker is not connected to the main circuit or to the auxiliary
circuit. The molded case circuit breaker can be removed.
●
UNBLOCK:
The molded case circuit breaker is not in any of the positions defined above and can be
moved by means of the crank handle.
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