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16
Specifications
4
1
Types of Mounting
Draw-out type
This type of ACB consists of a breaker body and a draw-out
cradle. The breaker body can be moved within or removed
from the draw-out cradle that is fixed in the switchboard.
There are four breaker body positions: CONNECTED, TEST,
ISOLATED, and WITHDRAWN. The switchboard panel door
can be kept closed in the CONNECTED, TEST, and ISOLATED
positions (“shut-in three positions”).
Fixed type (standard series only)
This type of ACB has no draw-out cradle and is designed to be
directly mounted in the switchboard.
Connection methods
Main circuit terminals
Three(3) types of main circuit terminal arrangements are avail-
able: vertical terminals, horizontal terminals, and front connec-
tions. Different types of terminal arrangements can be speci-
fied for the line and load sides. Unless otherwise specified by
the user, horizontal terminals are given to types AR208S,
AR212S and AR216S ACBs on both the line and load sides,
and vertical terminals to AR220S, AR235S, AR332S and AR
440S. For AR440S, only vertical terminals available. For High
fault series, vertical terminals are standard and horizontal ter-
minals are optional, and front connections are not available.
ISOLATED
CONN
RELEASE
BUTTON
TEST
z
CONNECTED position
Position indicator
Both the main and control circuits are connected for
normal service.
x
TEST position
Position indicator
The main circuit is isolated and the control circuits are
connected. This position permits operation tests without the
need for opening the switchboard panel door.
c
ISOLATED position
Position indicator
Both the main and control circuits are isolated.
The switchboard panel door does not need to be opened.
v
WITHDRAWN position
The breaker body is fully withdrawn from the draw-out
cradle.
ISOLATED
CONN
RELEASE
BUTTON
TEST
ISOLATED
CONN
RELEASE
BUTTON
TEST
£
Vertical terminals
£
Front connections
Control circuit terminals
Control circuit terminals are front located to allow easy wiring/
access.
• The terminal blocks (for auxiliary switches, position switches,
and control circuits) are positioned on the top of the ACB front
panel and can be accessed from the front for wiring.
• M4 screw terminals are standard.
£
Screw terminals
£
Horizontal terminals