Instruction manual
KRB-5377
16
3. GENERAL
3-1. Types and Descriptions
TemPower2 is available in types shown in Tables 3 and 4.
Table 3 Standard types
Frame size (A) 800 1250 1600 2000 2500 3200 4000 4000
Type AR208S AR212S AR216S AR220S AR325S AR332S AR440SB AR440S
IEC, EN, AS
JIS
Max. rated current [I
n
] (A) *1, *2
Marine use
800 1250 1600 2000 2500 3200 4000 4000
N-phase rated current (A) 800 1250 1600 2000 2500 3200 4000 4000
Number of poles *3, *4 3434343434343434
Dielectric withstand voltage [U
i
] (50/60Hz) *5
1000 1000 1000 1000 1000 1000 1000 1000
Operating voltage [U
e
] (50/60Hz) *6
690 690 690 690 690 690 690 690
Rated breaking/making current [kA sym rms/kA peak]
AC 690V *8 50/105 65/143 85/187 75/165
IEC ,EN, AS [I
CS
= I
CU
]
JIS C 8201-2-1 Ann.1 Ann.2
AC 440V 65/143 *10 85/187 *10 100/220 100/220
AC 690V 50/115 65/153 *14 75/179
NK *7
AC 450V 65/153 *10 85/201 *10 *14 100/245
DC 600V *9
For DC
DC 250V
40/40
Rated short-time current [I
CW
] [kA rms] (1 sec.)
65 85 100 100
Rated latching current (kA) 65 85 85 100
With maintenance 30000 30000 30000 25000 20000 20000 15000 15000
Mechanical
Without maintenance
15000 15000 15000 12000 10000 10000 8000 8000
AC 460V 12000 12000 12000 10000 7000 7000 3000 3000
Endurance
in number of ON-
OFF cycles *11
Electrical
Without
mainte-
nance
AC 690V 10000 10000 10000 7000 5000 5000 2500 2500
Installation Draw-out or fixed type
Mass (kg) for draw-out type 73 86 73 86 76 90 79 94 105 125 105 125 126 158 139 176
External dimensions (mm)
a 360445360445360445360445466586466586----
b 460 --
c 290 --
Fixed
type
*12
d75 --
a 354 439 354 439 354 439 354 439 460 580 460 580 460 580 631 801
b 460 460 460
c 345 345 375
Draw-
out type
*13
d40 140 53
Line side Vertical, horizontal or front terminals
Vertical terminals Vertical terminals
Connection method
Load side Vertical, horizontal or front terminals
Vertical terminals 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
Operation indication Group indication
Tripping coil
(TC)
Standard equipment for OCR-equipped ACB
Shunt trip device
(SHT)
Optional
Tripping device
undervoltage trip
device (UVT)
Optional
Number of switches 4C (standard), 7C or 10C; available for general feeder or microload
Auxiliary switches
Terminal type screw terminals
Rated voltage Operation power AC100 - 120V, AC200 - 240V, DC100 - 125V, DC200 - 250V, DC24V or DC48V
*1: Ambient temperature: 40°C (45°C for marine used)）
*2: With horizontal terminals for AR208S - 216S and vertical terminals for AR220S - 440S
*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: Applicable to 3-pole ACBs with INST or MCR.
*8: For applicability to power distribution IT systems, consult us
*
9: A special version of the ACB is necessary above 250V DC. Contact Terasaki for details.
*10: For AC500V
*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 both vertical and horizontal terminals
*13: This manual covers draw-out type ACBs.
*14: In applying or going to apply.