Table of Contents
Interphase barrier (BA)
This device enhances the interphase insulation between the terminals of the
breaker, and prevents short-circuit due to conductive objects or dust.
It can be attached and detached easily. The interphase insulation is available for all
connection methods.
Terminal cover (TTC)
The transparent terminal cover prevents users from careless touching to the
live control terminals.
International Protection is IP20 (IEC 60947-1 Annex C). The terminal cover is available
for both the fixed type breakers and the drawout type breakers.
Dust cover (DUC)
The dust cover prevents the dust or water from entering into the panel board
8
due to the breaker panel cut.
Protection degree is IP54. DUC can be locked by the padlock. (The padlock should be
supplied by the customer.) For the suitable size of the padlock, refer to page 20. Consult
us for details.
18
For drawout type
Option
Option
Option
5
Cell switch (CL)
1
Standard pattern
CL-C
CL-T
CL1
1
–
CL2
1
–
CL3
1
1
CL4
2
1
Shorting b contact (SBC)
2
1
Cell switch
Mis-insertion preventor
This is the switch to show the drawout position (CONNECTED, TEST, and
DISCONNECTED) of the breaker. An arbitrary combination up to 4 pieces is available.
Operating sequence
Disconnected
Drawout position of breaker
Connected
Display position of
DISCONNECT
TEST
CONNECT
drawout operation
CL-C
OFF
(CONNECTED)
CL-T
CL-D
OFF
ON
(TEST)
–
CL-D
ON
OFF
(DISCONNECTED)
1
Note) The setting can be changed by customers later.
1
A preliminary setting of CL at factory shipment is as follows.
1
CL1: 1C, CL2: 1C1D, CL3: 1C1T1D, CL4: 2C1T1D
When moving the breaker from the connected position to the test positions,
this contact is used to short-circuit the auxiliary switch (LAXb), thus maintaining the
correct sequence of operation of the external control circuit. When ordering, SBC with
the same number of contacts as auxiliary switches (LAXb) will be provided. Up to 5
SBCs can be mounted.
Operating sequence
Disconnected
Main circuit
Connected
DISCONNECT
TEST
CONNECT
Display position of
drawout operation
ON
Change-over sequence
of SBC
OFF
(b contact)
2
Shorting b contact (Rear side)
3
Safety shutter
4
Safety shutter lock
8
Option
Switch rating
Current (A)
Voltage (V)
Resistive load
Inductive load
250
AC
10
10
(50/60 Hz)
125
ON
250
3
1.5
DC
125
10
6
30
10
10
Contacts max.
Total 4c max.
Option
19
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