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EntelliGuard* L

Handling, mounting and connecting

Clearance distances Front view fixed or draw-out pattern
A modern circuit breaker is designed to interrupt high
short-circuit currents in a very limited time frame. In doing A
so the breaker vents gas and a limited amount of conductive
fragments.
B2
EntelliGuard Air Circuit Breakers have been designed to B1
limit the venting phenomenon to a minimum, but certain
clearances do need to be taken into account as indicated in
the front and side views.
Application Guide to the contacts and the removal of the arc chutes. A certain Side view fixed pattern
The maintenance of the fixed pattern devices requires access

distance needs to be left above the breaker to allow for this
as indicated in the front and side views.

Minimum clearance distances on fixed pattern breaker from housing to:

160
A
160
30
30
B1 (1) Metal parts Insulated parts
B2 30 30
Intro Minimum clearance distances from draw-out cassette housing to: 182mm min
to remove
Metal parts Insulated parts arc chute
A (2) 0 0
A B1 30 30
B2
30
30
(1) Dimension allows for field arc chute replacements
B (2) With cassette top covers; distance without these parts 160mm
Handling
C EntelliGuard Breakers in the fixed pattern and as draw-out
portion have two retractable lifting eyes. One of these is
located on the breaker right hand side and second on the left
hand side (please see sketch).
D The cassettes have four re-enforced tilting points with M10
screw thread.
Recommended connection cross sections
E The adjacent table indicates the recommended bus bar
dimensions to be used in connecting the EntelliGuard Air Circuit
Breaker.
X

Recommended copper busbar sizes (per phase) Recommended aluminium busbar sizes (per phase)
Horizontal and
Envelope Rating (A) flat/front termination Vertical termination Envelope Rating (A) Horizontal termination Vertical termination
630 2 x 50 x 5 1 x 100 x 5 400 2 x 40 x 8 2 x 40 x 8
800 2 x 50 x 5 1 x 100 x 5 630 2 x 40 x 8 2 x 40 x 8
1000 2 x 60 x 5 2 x 100 x 5 800 2 x 50 x 8 2 x 50 x 8
1 1250 2 x 50 x 10 2 x 80 x 5 1 1000 2 x 50 x 10 2 x 50 x 10
1600 2 x 50 x 10 2 x 100 x 5 1250 2 x 63 x 12 2 x 63 x 12
2000 3 x 50 x 10 3 x 100 x 5 1600 4 x 50 x 8 4 x 50 x 8
2500 N/A 4 x 100 x 5 2000 (4) 3 x 100 x 10
2500 (4) 4 x 100 x 10
2000 3 x 50 x 10 3 x 100 x 5 2000 3 x 100 x 10 3 x 100 x 10
2 2500 4 x 50 x 10 4 x 100 x 5 2 2500 4 x 100 x 10 4 x 100 x 10
3200 4 x 100 x 10 4 x 100 x 10 3200 (4) 4 x 150 x 10
4000 (1) 4 x 100 x 10 + 1 x 100 x 5 4000 (4) 5 x 150 x 10
(1) Consider vertical configuration. No horizontal configuration available. (3) With specifically designed Aluminium connection kit; please contact us.

(4) Consider vertical configuration. No horizontal configuration available.

D.2