Insulating Measures - Siemens SENTRON 3WL10 Series Manual

Accessories
3.1 Accessories for connection and insulation
3.1.3

Insulating measures

①
Low cover
②
Extended cover
③
Phase barrier 200 mm
④
Phase barrier 100 mm
Terminal cover
On fixed-mounted circuit breakers, the cover is installed over the termination area and
reduces the risk of direct contact with live parts.
The cover is available in two versions:
● Low cover of front main terminal
● Extended cover of front main terminal
Phase barriers
Phase barriers provide insulation between the individual phases of the circuit breaker. They
are installed in the front termination area between the phases of the fixed breaker version.
Note
You will find connections that necessitate mandatory insulation measures in Chapter
Isolating distances and insulating equipment (Page 119).
In these cases, the measures are contained in the scope of delivery by default.
Rear connections of the fixed breaker version and the entire withdrawable breaker do not
require insulation measures.
74
Air circuit breaker 3WL10
Manual, 11/2017, L1V30499596002-01