KRB-5404
18
Table 4 High-performance types
Frame size (A)
1250
1600
2000
1600
2000
2000
2500
3200
4000
Type
AR212H
AR216H
AR220H
AR316H
AR320H
AR420H
AR325H
AR332H
AR440H
Max. rated current [
I
n
] (A) *1, *2
IEC, EN, AS
1250
1600
2000
1600
2000
2000
2500
3200
4000
JIS
Marine use
N-phase rated current (A)
1250
1600
2000
1600
2000
2000
2500
3200
4000
Number of poles *3, *4
3
4
3
4
3
4
3
4
3
4
3
3
4
3
4
3
Dielectric withstand voltage [
U
i
] (50/60Hz) *5
1000
1000
1000
1000
1000
1000
1000
1000
1000
Operating voltage [
U
e
] (50/60Hz) *6
690
690
690
690
690
690
690
690
690
Rated breaking/making current [kA sym rms/kA peak] *7
IEC ,EN, AS [
I
CS
=
I
CU
]
JIS C 8201-2-1 Ann.1 Ann.2
AC 690V *9
55/121
85/187
75/165
85/187
75/165
AC 440V
80/176
100/220
120/264
100/220
120/264
NK *8
AC 690V
55/128
85/201
*14
85/201
*14
AC 450V
80/186
100/233
*14
100/233
*14
For DC
DC 250V *10
40/40
Rated short-time current [
I
CW
] [kA rms] (1 sec.)
80
100
100
100
100
Rated latching current (kA)
65
85
100
85
85
Endurance
in number of ON-
OFF cycles *11
Mechanical
With maintenance
30000
30000
25000
30000
25000
15000
20000
20000
15000
Without maintenance
15000
15000
12000
15000
12000
8000
10000
10000
8000
Electrical
Without
mainte-
nance
AC 460V
12000
12000
10000
12000
10000
3000
7000
7000
3000
AC 690V
10000
10000
7000
10000
7000
2500
5000
5000
2500
Installation
Draw-out or fixed type
Mass (kg) for draw-out type
79
94
79
94
79
94
105
125
105
125
139
105
125
105
125
139
External dimensions (mm)
Fixed
type
*12
a
360
445
360
445
360
445
466
586
466
586
-
466
586
466
586
-
b
460
-
460
-
c
290
-
290
-
d
75
-
75
-
Draw-
out type
*13
a
354
439
354
439
354
439
460
580
460
580
631
460
580
460
580
631
b
460
460
460
460
c
345
375
345
380
d
40
53
40
60
Connection method
Line side
Vertical terminals (Horizontal terminals can be specified as an
option)
Vertical
terminals
Vertical terminals
(Horizontal terminals can
be specified as an option)
Vertical
terminals
Load side
Vertical terminals (Horizontal terminals can be specified as an
option)
Vertical
terminals
Vertical terminals
(Horizontal terminals can
be specified as an option)
Vertical
terminals
Control circuit terminal type
screw terminals
Spring charging method
Manual or motor charging
Overcurrent release (OCR)
No OCR, or L-characteristic for general feeder protection (In case of AGR-11B)
No OCR, L-characteristic for general feeder protection, R-characteristic for general feeder protection or S-characteristic for
generator protection (In case of AGR-21B,22B,31B)
Operation indication
Group indication (In case of AGR-11B)
Individual indication (In case of AGR-21B,22B,31B)
Tripping device
Tripping coil
(TC)
Standard equipment for OCR-equipped ACB
Shunt trip device
(SHT)
Optional
Undervoltage trip
device (UVT)
Optional
Auxiliary switches
Number of switches
4C (standard), 7C or 10C; available for general feeder or microload
Terminal type
screw terminals
Operation power *15
Rated voltage
AC100V, AC110V, AC120V, AC200V, AC220V, AC240V,
DC24V, DC48V, DC100V, DC110V, DC125V, DC200V or DC220V
*1: Ambient temperature: 40°C (45°C for marine used)
*2: For vertical terminals
*3: For 2-pole applications, use two poles at both ends.
*4: 4-pole ACBs are not applicable to power distribution IT systems unless N-phase protection is provided.
*5: Varies depending on applicable standards. AC1000V applies to ACBs conforming to IEC60947-2 and JIS C8201-2.
*6: Varies depending on applicable standards. AC690V applies to ACBs conforming to IEC60947-2 and JIS C8201-2.
*7: Setting the instantaneous trip function to NON reduces the rated breaking current to the rated latching current.
*8: Applicable to 3-pole ACBs with INST or MCR.
*9: For applicability to power distribution IT systems, consult us
*10: A special version of the breaker is available to use above 250V DC. Contact Terasaki for details.
*11: Expected service life based on endurance test. The service life of ACB depends on the working and environmental conditions. Refer to chapter 6
“Maintenance, Inspection and
Parts Replacement
”.
*12: For vertical terminals
*13: This manual covers draw-out type ACBs.
*14: In applying or going to apply.
*15:
For more information, please refer to page 23 and 25.
Use the ACBs in the environmental conditions specified in Table 5.
Table 5 Operating environment
Standard
environment
(Standard equipped
ACBs)
Altitude
2000 m max.
Ambient temperature
-5°C to +40°C The average temperature for 24 hours must not exceed 35°C
Humidity
45 to 85% rel. max.
Vibration
0.7G max.
Shock
200 m/s
2
(20G) max.
Atmosphere
No excessive water vapor, oil vapor, dust, or corrosive gases. No sudden change in temperature and no condensation.
Ammonia (NH
3
): 0.5 ppm max, Hydrogen sulfide (H
2
S)/sulfur dioxide (SO
2
)/hydrogen chloride (HCl): 0.1 ppm max.,
Chlorine (Cl
2
): 0.05 ppm max.
Special
environment
(Optional)
Tropical environment
package
Different from standard ACBs in that Ambient temperature: 60°C max. and Humidity: 95% rel. max. (no condensation)
Cold environment
package
Different from standard ACBs in that Ambient temperature: -25°C min. for use and -40°C min. for storage (no condensation)
Corrosion-resistant
package
Different from standard ACBs in that NH
3
: 50 ppm max, H
2
S: 10 ppm max., SO
2
/HCl: 5 ppm max., and Cl
2
: 1 ppm max.
