User Manual 27
User Manual 26
Undervoltage release/UVT
Shunt trip release/SHT
Closing release/XF
Auxiliary contact/AX
Motor operator
The auxiliary contact remotely monitors ON/OFF position of air switch disconnector from
remote place.
Contact configuration:
44: 4NO and 4NC;66: 6NO and 6NC;
44C: 4NO or 4NC;66C: 6NO or 6NC.
The electric motor charges the closing spring of mechanism when the air switch
disconnector is closed.
Factory installed only.
Mechanical charging handle can be used when maintaining or without power supply.
Equipped with a limit switch contact which signals that spring is charged.
Voltage /V
Rated Current /
A
AC
240
5
480
2
DC
110
0.25
220
0.25
Mechanical interlocks with cables
For mutual interlocking of 2 or 3 (in preparation) switches
Mechanical interlock with cable
Cable length for maximum distance of mounting positions of interlocks 78in(2m)
Suitable for ASD25DC air switch disconnector.
Scope of delivery: 2 interlocks and 2 cables (2 switches version), 3 interlocks and 6 cables (3 switches version)
78in/2m(max)
A
B
A B
0
1
0
0
0
1
Circuit diagram
On/Off state
User Manual 26
Safety shutter
Safety shutter lock
Mechanical interlocks with cables
It is the automatic safety device to protect the connectors of main circuits by cutting off da
n
gerous
contact from outside while the breaker is draw out. When the main breaker is drawn in, the safety
shutter is automatically open.
Only available for withdrawable circuit breaker & non-automatic switch.
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vent main
breaker pushed in.
Only available for withdrawable circuit breaker & non-automatic switch.
Lock is not provided.
Diameter of the lock should be 0.12in to 0.22in.
For mutual interlocking of 2 or 3 (in preparation) breakers
Mechanical interlock with cable
Cable length for maximum distance of mounting positions of interlocks 78in(2m)
Suitable for A32 Power circuit breaker and ASD32 No-automatic switch
Scope of delivery: 2 interlocks and 2 cables (2 breakers version), 3 interlocks and 6 cables (3 breakers version)
Accessories
78in/2m(max)
A
B
A B
0
1
0
0
0
1
Circuit diagram
On/Off state
Accessories
Accessories
The undervoltage release is an optional device on both manually and electrically operated
air switch disconnectors. It opens the switch when its supply voltage falls to 30–60%
of rated voltage. If the release is not energized to 85% of its supply voltage, the switch
disconnector can not be closed electrically or manually.
Undervoltage release ratings:
Control voltages
Operational
voltage range
85%-110%
Dropout voltage
30%-60%
Inrush/continuous
power consumption
Operating time(ms)
24-30Vdc
20-23Vdc
7-14Vdc
450W/4.5W
70
48-60Vac/dc
41-66Vac/dc
14-29Vac/dc
275W/4.5W
70
110-130Vac/dc
94-143Vac/dc
33-78Vac/dc
275W/4.5W
70
200-240Vac/dc
170-264Vac/dc
60-144Vac/dc
275W/4.5W
70
380-415Vac
323-457Vac
114-249Vac
275W/4.5W
70
The shunt trip is an optional device on air switch disconnectors.It opens the switch
disconnector instantaneously when its coil is energized by a voltage input.
Shunt trip ratings:
Control voltages
Operational
voltage range
70%-110%
Inrush/continuous
power consumption
Operating time(ms)
24-30Vdc
17-33Vdc
450W/4.5W
35
48-60Vac/dc
34-66Vac/dc
275W/4.5W
35
110-130Vac/dc
77-143Vac/dc
275W/4.5W
35
200-240Vac/dc
146-264Vac/dc
275W/4.5W
35
380-415Vac
266-458.5Vac
275W/4.5W
35
The closing release is an optional device. It remotely closes the air switch disconnector
when the coil is energized by a voltage input.
Shunt release ratings:
Control voltages
Operational
voltage range
70%-110%
Inrush/continuous
power consumption
Operating time(ms)
24-30Vdc
17-33Vdc
450W/4.5W
35
48-60Vac/dc
34-66Vac/dc
275W/4.5W
35
110-130Vac/dc
77-143Vac/dc
275W/4.5W
35
200-240Vac/dc
146-264Vac/dc
275W/4.5W
35
380-415Vac
266-458.5Vac
275W/4.5W
35
