TERASAKI TemPower 2 User manual

TERASAKI ELECTRIC (EUROPE) LTD.
80 Beardmore Way, Clydebank Industrial Estate,
Clydebank, Glasgow, G81 4HT, Scotland (UK)
Telephone: [phone]
Fax: [phone]
Email: [email protected]
http://www.terasaki.com
TERASAKI MIDDLE EAST
Saif Zone Q3-168, PO Box 120860
Sharjah, UAE
Telephone: [phone]
Fax: [phone]
Email: [email protected]
http://www.terasaki.com
TERASAKI ELECTRIC (EUROPE) LTD.
(FILIALE ITALIA)
Via Ambrosoli, 4A-20090, Rodano, Milano, Italy
Telephone: [phone]
Fax: [phone]
Email: [email protected]
http://www.terasaki.it
TERASAKI ELECTRIC (EUROPE) LTD.
(SUCURSAL EN ESPAÑA)
Pol. Ind. Coll de la Manya, C/Cal Ros dels Ocells 5
08403 Granollers , (Barcelona) España
Telephone: [phone]
Fax: [phone]
Email: [email protected]
http://www.terasaki.es
TERASAKI ELECTRIC (EUROPE) LTD.
(FILIAL SVERIGE)
Snickarvägen 2, SE-132 38 SALTSJÖ-BOO, Sweden
Telephone: [phone]
Fax: [phone]
Email: [email protected]
http://www.terasaki.se
TERASAKI CIRCUIT BREAKERS (S) PTD. LTD.
17 Tuas Street, Singapore, 638454
Telephone: [phone]
Fax: [phone]
Email: tecs@pacific.net.sg
TERASAKI ELECTRIC CO., LTD.
Head Office & Circuit Breaker Division
6-13-47 Kamihigashi, Hirano-ku,
Osaka 547-0002, Japan
Telephone: [phone]
Fax: [phone]
Email: [email protected]
http://www.terasaki.co.jp
TERASAKI ELECTRIC (M) SDN, BHD.
Lot 3, Jalan 16/13D, 40000 Shah Alam,
Selangor Darul Ehsan, Malaysia
Telephone: [phone]
Fax: [phone]
Email: [email protected]
TERASAKI DO BRASIL LTDA.
Rua Cordovil, 259-Parada De Lucas,
21250-450, Rio De Janeiro-R.J., Brazil
Telephone: [phone]
Fax: [phone]
Email: [email protected]
http://www.terasaki.com.br
TERASAKI ELECTRIC (CHINA) LTD.
72 Pacific Industrial Park, Xin Tang Zengcheng,
Guangzhou 511340, China
Telephone: [phone]
Fax: [phone]
Email: [email protected]
TERASAKI ELECTRIC GROUP SHANGHAI
REPRESENTATIVE OFFICE
Room No. 1405-6, Tomson Commercial Building,
710 Dong Fang Road, Pudong, Shanghai,
200122, China
Telephone: [phone]
Fax: [phone]
Email: [email protected]

KRB-5404
INSTRUCTION MANUAL FOR AIR CIRCUIT BREAKERS
(With Draw-out Cradle and Type AGR-11B,21B,22B,31B Overcurrent Protective Device)
Types: AR208S
AR212S
AR216S
AR220S
AR325S
AR332S
AR440S
AR440SB
AR212H
AR216H
AR220H
AR316H
AR320H
AR325H
AR332H
AR420H
AR440H
AR208D
AR212D
AR216D
Notice
Be sure to read this manual before installing, operating, servicing, or inspecting the ACB.
Please retain this manual for future reference.
Electrical work must be done by competent persons.
ACB maintenance, inspection, parts replacement, OCR field tests and setting changes must be
performed by competent persons.

KRB-5404
1. SAFETY NOTICES 5
2. RECEIVING AND HANDLING 7
2-1. Transportation Precautions 7
2-1-1. Transporting the ACB 7
2-1-2. Transporting the breaker body 8
2-1-3. Transporting the draw-out cradle 8
2-2. Storage Precautions 8
2-3. Installation Precautions 9
3. GENERAL 16
3-1. Types and Descriptions 16
3-2. Parts and Functions 20
3-3. Circuits and Ratings 24
4. OPERATION 31
4-1. Charging and Opening operation 31
4-1-1. Charging operation 31
4-1-2. Closing operation 32
4-1-3. Opening operation 32
4-1-4. Motion of trip indication and spring charge
indication switches 32
4-1-5. Motion of operation mechanisms 33
4-2. Draw-out and Insertion Operation 35
4-2-1. General 35
4-2-2. Draw-out operation 36
4-2-3. Putting the breaker body back into the draw-out
cradle 37
4-2-4. Contact status of auxiliary and position switches 39
4-3. ON-OFF Button Cover Locking Procedure 39
4-4. Lock in OFF Procedure 40
4-5. Position Lock Lever Locking Procedure 40
4-6. Breaker Fixing Bolt Securing Procedure 41
4-7. OCR Cover Locking Procedure 41
5. OVERCURRENT RELEASE (OCR) 42
5-1. Specifications 42
5-2. Characteristics 44
5-2-1. L characteristic for general feeder 44
5-2-2. R characteristic for general feeder 47
5-2-3. S characteristic for generator protection 51
5-3. OCR Setting Procedure 53
5-3-1. OCR Setting Procedure (AGR-11B type) 53
5-3-2. OCR Setting Procedure (AGR-21B,22B,31B type)
54
5-3-2-1. General 54
5-3-2-2. Available screens 55
5-3-2-3. Monitor screen 57
5-3-2-3-1. Monitor screen (AGR-21B,22B) 57
5-3-2-3-2. Monitor 1 screen (AGR-31B) 58
5-3-2-3-3. Monitor 2 screen (AGR-31B) 59
5-3-2-4. Setup screen 61
5-3-2-4-1. Setup screen(AGR-21B,22B) 61
5-3-2-4-2. Setup screen(AGR-31B) 63
5-3-2-5. Reset screen 66
5-3-2-5-1. Reset screen (AGR-21B,22B) 66
5-3-2-5-2. Reset screen(AGR-31B) 67
5-3-2-6. Setting 1 screen 68
5-3-2-7. Setting 2 screen 70
5-3-2-8. Maintenance screen 73
5-4. OCR Function Check 74
5-5. Operation Indication and Indication Resetting
Procedure 76
5-5-1. Operation Indication (AGR-11B type) 76
5-5-2. Operation Indication and Indication Resetting
Procedure (AGR-21B,22B,31B type) 77
6. MAINTENANCE, INSPECTION AND PARTS
REPLACEMENT 79
6-1. Inspection Procedures 80
6-2. Parts Replacement Procedure 83
6-2-1. Preparation 83
6-2-2. Arc chambers 86
6-2-3. Stationary contact 87
6-2-4. Moving contact 89
6-2-5 Latch release coil (LRC) 91
6-2-6. Shunt trip device (SHT) 92
6-2-7. Control relay 93
6-2-8. Magnet hold trigger (MHT) 96
6-2-9. Auxiliary switches 97
7. TROUBLESHOOTING FLOWCHARTS 99
8.DOOR INTERLOCK 102
9. MECHANICAL INTERLOCK DEVICE. (HORIZONTAL
TYPE) 104
TABLE OF CONTENTS

KRB-5404
4

KRB-5404
5
1. SAFETY NOTICES
Thank you for purchasing the TERASAKI AR-series Air Circuit Breaker (TemPower2).
This chapter contains important safety information.
Be sure to carefully read these safety notices, instruction in this manual, and other documents accompanying theAir Circuit Breaker
(hereinafter referred to as the ACB) to familiarize yourself with safe and correct procedures or practices before installing, operating,
or servicing the ACB.
In this manual, safety notices are divided into “DANGER” and “CAUTION” according to the hazard level:
DANGER : A danger notice with this symbol indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
CAUTION : A caution notice with this symbol indicates a potentially hazardous situation which, if not avoided, may result in
minor or moderate injury and/or property damage.
Note that failure to observe a caution notice could result in serious injury/damage in some situations. Because safety notices contain
important information, be sure to read and observe them.
Transportation Precaution
DANGER
Never stand under the ACB that has been lifted or suspended by a lifter or lifting attachments. The weight of the ACB may
cause serious injury.
Installation Precautions
CAUTION
Electrical work must be done by competent persons.
Do not place the ACB in such an area that is subject to high temperatures, high humidity, dusty air, corrosive gases, strong
vibration and shock, or other unusual conditions. Mounting the ACB in such an area could cause a fire or malfunction.
Be careful to prevent foreign objects (such as debris, concrete powder, dust, chippings, and iron powder) and oil or rainwater
from entering the ACB. These materials inside the ACB could cause a fire or malfunction.
Prior to commencing any work on the ACB, open an upstream circuit breaker or the like to isolate all sources of
power/voltage. Otherwise, electric shock may result.
Fix the draw-out cradle of the ACB firmly on a flat, level surface using mounting screws. Otherwise, the draw-out operation
may cause the breaker body or the draw-out cradle to fall, resulting in damage to the ACB or personal injury.
Take care not to deform or bend protrusions in the bottom face of the draw-out cradle when fixing the draw-out cradle with
mounting screws. Deformation of the protrusions may cause a malfunction.
Connect conductors (including screws) to the main circuit terminals in the specified area. Otherwise, a short-circuit may
result.
When terminating conductors to the ACB, tighten terminal screws to the torque specified in this manual. Otherwise, a fire
could result.
For 4-pole ACBs, be sure to connect a 3-phase, 4-wire neutral conductor to the N-phase pole (on the right end). Otherwise, an
overcurrent may hinder the ACB from tripping, resulting in a fire.
Operation Precautions
DANGER
Never touch live terminal parts. Doing so will result in electric shock.
Do not leave the ACB body in the draw-out position. If the ACB body is accidentally dropped, its weight may cause serious
injury.
CAUTION
Do not force down the charging handle after completion of manual charging operation. Doing so may cause a malfunction.
The permissible operating voltage of the spring charging motor is 85 to 110% of the rated ac voltage or 75 to 110% of the rated
dc voltage. Be sure to supply a voltage within the above ranges to the motor. Otherwise, a malfunction, burnout, or fire may
result.

KRB-5404
6
Operation Precautions (continued)
CAUTION
Repeated open/close operation by the motor charging mechanism without pause should not exceed 15 times. If repeated
continuous open/close operation is inevitable, a pause of at least 20 minutes should be provided after the repetitions of 15
times. Otherwise, a spring charging motor may be burnt out.
Do not bring your hand or face close to arc gas vent of the arc chamber while the ACB is closed. Otherwise, a burn may result
from high-temperature arc gas blowing out of the arc gas vent when the ACB trips open.
If the ACB trips open automatically, remove the cause of tripping operation before re-closing the ACB. Otherwise, a fire
could result.
If the ACB has the breaker fixing bolts, be sure to loose the fixing bolts before draw-out operation. Otherwise, damage to the
ACB may result.
Make sure the draw-out cradle is secured with mounting screws before inserting or drawing out the breaker body. Otherwise,
the insertion or draw-out operation may cause the breaker body or the draw-out cradle to fall, resulting in damage to the ACB
or personal injury.
When retracting the draw-out rail into the draw-out cradle, be sure to push the rail end. Do not hold the hook pin, body
stopper, or body stopper shaft. Doing so may cause your fingers to be pinched, resulting in injury.
Do not forcedly turn the draw-out handle clockwise when the breaker body is in the “CONN.” position. Doing so may cause a
malfunction.
If the ACB has the breaker fixing bolts, make sure the bolts on both sides are securely tightened before using the ACB.
Loosened fixing bolts may cause a malfunction of theACB, in particular when it is installed in such an area that is subject to
strong vibrations.
OCR (Overcurrent Release) Handling Precautions
CAUTION
OCR field tests and setting changes must be performed by competent persons.
After setting changes are made, the settings be checked with e.g., a type ANU-1 OCR checker (optional).
After completion of OCR tests, be sure to return the settings to the original values. Failure to do so may cause a fire or
burnout.
Before changing OCR settings, open the ACB and then lock the OFF button to prevent theACB from being closed
inadvertently.
Do not push the SET button diagonally. Doing so may cause a poor in return and malfunction.
Maintenance and Inspection Precautions
CAUTION
ACB maintenance, inspection and parts replacement must be performed by competent persons.
Do not touch ACB current carrying parts and ACB structural parts close to a current carrying part immediately after the ACB
trips open. Remaining heat may cause a burn.
Prior to commencing any work on the ACB, open an upstream circuit breaker or the like to isolate all sources of
power/voltage from the main and control circuits. Otherwise, electric shock may result.
Take care to avoid adhesion of dust to main and control circuit contacts. Dust on the contacts may result in a fire.
Prior to commencing maintenance, inspection, or parts replacement, make sure that the closing springs are released and the
ACB is open. Otherwise, unintentional open/close operation may lead to fingers or tools to be pinched by the open/close
mechanism, resulting in injury.
Retighten the terminal screws periodically to the specified torque. Otherwise, a fire could result.
When grinding a contact tip, be careful to prevent grinding dust from entering the breaker operating mechanism. Wipe the tip
clean after grinding. Otherwise, a malfunction or fire could result.
Do not perform dielectric withstand tests under other conditions than specified. Doing so may cause a malfunction.
Be sure to reinstall the arc chamber if removed. Failure to do so or incorrect installation of the arc chamber may result in a fire
or burn.
When charging the closing springs or performing open/close operation of the ACB with the arc chamber, front cover and/or
side covers removed during maintenance or inspection work, do not touch parts other than those required for the above
operation (charging handle, ON/OFF buttons, moving core and the like). Doing so may cause fingers or tools to be pinched,
resulting in injury.
When replacing an auxiliary, do not damage the control wire for the auxiliary or pinch the wire between the auxiliary and the
breaker body. Doing so may cause a malfunction.

KRB-5404
7
2. RECEIVING AND HANDLING
Upon receipt of yourACB, check the following. If you have any question or problem, contact us at the indicated on the back cover
of this manual.
Check that the ACB received is as ordered and that the accessories are as specified.
Check that the ACB is not damaged during shipment.
2-1. Transportation Precautions
DANGER
Never stand under the ACB that has been lifted or suspended by a lifter or lifting attachments. If the ACB body is accidentally
dropped, its weight may cause serious injury.
2-1-1. Transporting the ACB
Before transporting the ACB, make sure the breaker body is in the CONN. position. If the ACB has breaker fixing bolts, make
sure the breaker body is secured to the draw-out cradle with the fixing bolts.
When lifting the ACB, hold it using lifting attachments or wire ropes through the lifting holes. Take care that the position
switches, control circuit terminals, auxiliary switches, arc gas barrier and control terminal block cover which are shown in Fig. 1
are not damaged by the lifting rope. Lift the ACB carefully and gently. For transportation, place the ACB on a pallet and carry
slowly and carefully.
Avoid shock and vibration to theACB during transportation.
Do not lay the ACB during transportation.
When transporting theACB over great distances, crate it for protection against shock and vibration and secure the crate package
with wood or ropes.
When transporting theACB while it is installed in a switchboard, you should fix the breaker body in the draw-out cradle with the
breaker fixing bolts (optional).
Lower the ACB onto a flat, level surface.
Front view Rear view
Fig. 1 Transporting the ACB
Breaker body
Breaker fixing bolt
Lifting attachment
Control terminal block cover
Lifting hole (ø20mm)
Arc gas barrier
Draw-out cradle
Position switches
Control circuit terminals
Auxiliary switches

KRB-5404
8
2-1-2. Transporting the breaker body
Use an optional lifter or lifting plate to transfer the breaker body.
When transporting the breaker body on a lifter, move the lifter with the lifter fork held at the lowest possible position.
Take care not to exert forces on the front cover and the control circuit contacts shown in Fig. 2 . Otherwise, a deformation or
damage may result.
Front view Rear view
Fig. 2 Transporting the breaker body
2-1-3. Transporting the draw-out cradle
When transporting the draw-out cradle, hold it using lifting attachments or wire ropes through the lifting holes or carry it by the
portions (4 points) marked with the arrows shown in Fig 3. When carrying the draw-out cradle, take care not to exert forces on
the arc gas barrier, the draw-out arm, the position switches, the auxiliary switches, the control circuit terminals, the control
terminal block cover, and the control circuit contacts.
Front view Rear view
Fig. 3 Transporting the draw-out cradle
2-2. Storage Precautions
It is recommended that the ACB be used as soon as you have received it. If it is necessary to store the ACB, note the following:
Store the ACB in a dry indoor location to prevent condensation due to sudden changes in ambient temperature. Condensation has
a harmful effect on the ACB insulation.
Store the ACB in a clean place free of corrosive gases and dust. In particular, exposure to a mixture of moisture and cement dust
may cause corrosion damage to metal parts of the ACB.
Place the ACB on a flat, level surface in its normal position (Do not lay the ACB).
Do not place the ACB directly on the floor. Do not stack the ACBs during storage.
Control circuit contact
Lifting plate
Front cover
Lifting attachment
Control terminal block cover
Lifting hole (ø20mm)
Arc gas barrier
Draw-out arm
Position switches
Control circuit terminals
Auxiliary switches
Control circuit contacts

KRB-5404
9
2-3. Installation Precautions
CAUTION
Electrical work must be done by competent persons.
Do not place the ACB in such an area that is subject to high temperatures, high humidity, dusty air, corrosive gases, strong
vibration and shock, or other unusual conditions. Mounting the ACB in such an area could cause a fire or malfunction.
Be careful to prevent foreign objects (such as debris, concrete powder, dust, chippings, and iron powder) and oil or rainwater
from entering the ACB. These materials inside the ACB could cause a fire or malfunction.
Prior to commencing any work on the ACB, open an upstream circuit breaker or the like to isolate all sources of
power/voltage. Otherwise, electric shock may result.
Fix the draw-out cradle of the ACB firmly on a flat, level surface using mounting screws. Otherwise, the draw-out operation
may cause the breaker body or the draw-out cradle to fall, resulting in damage to the ACB or personal injury.
Take care not to deform or bend protrusions in the bottom face of the draw-out cradle when fixing the draw-out cradle with
mounting screws. Deformation of the protrusions may cause a malfunction (see Fig. 4).
Connect conductors (including screws) to the main circuit terminals in the specified area. Otherwise, a short-circuit may
result.
When terminating conductors to the ACB, tighten terminal screws to the torque specified in this manual. Otherwise, a fire
could result.
For 4-pole ACBs, be sure to connect a 3-phase, 4-wire neutral conductor to the N-phase pole (on the right end). Otherwise, an
overcurrent may hinder the ACB from tripping, resulting in a fire.
Fig. 4 Protrusion on the bottom of the draw-out cradle
For AR440SB, the mounting screw protection covers are installed on two of four mounting screw holes. When fixing the draw-
out cradle, insert the draw-out cradle mounting screws into these two holes while lifting open the covers.
Do not lift open the cover too high. Failure to do so may result in damage to the cover.
(When lifting open the
mounting screw protection cover)
Fig. 5 Mounting screw protection cover
Draw-out cradle mounting screws
Hex head M12 (4) (not supplied)
with spring washer, flat washers (2)
and nut
Tightening torque: 41 - 52 N·m
Protrusion
Draw-out cradle
mounting screw hole
Mounting screw
protection cover
Protrusion
Draw-out cradle
mounting screw hole

KRB-5404
10
Do not install theACB in such an area that is exposed to direct sunlight.
Make sure that the mounting base has a sufficient capacity of bearing the weight of the ACB (see Table 3 and Table 4). The
mounting base must be protected against vibration. Take appropriate measures to provide a perfect protection to the mounting
base against resonance. Otherwise, open/close operation of theACB may cause a malfunction of other devices in the switchboard
or vibrations of the switchboard may cause a malfunction of the ACB.
Use the following screws with appropriate length for the main circuit terminals.
Main circuit terminal screws: Hex head M10, with flat washers (2), spring washer (1) and nut (1) per screw
Tightening torque: 22.5 - 37.2 N·m
Table 1 Number of main circuit terminal screws required
ACB type
AR208S, AR212S, AR216S
AR208D, AR212D, AR216D
AR220S,
AR212H, AR216H, AR220H
AR325S, AR332S
AR316H, AR320H, AR325H, AR332H
AR440SB
AR440S,
AR420H,
AR440H
Number of main
circuit terminal
screws
(3/4-pole)
Vertical terminals
12/16
18/24
24/32
24/32
48/64
Horizontal/front terminals*
12/16
18/24
-
-
* Front terminals are not applicable for high-performanceARxxxH types.
Use the following screw for the ground terminal. The screw must have a length that allows it to be inserted 4 - 9 mm into the
ground terminal M8 tapped hole.
Ground terminal screw: M8 (1) with spring washer and flat washer
Tightening torque: 11.8 - 14.7 N·m

KRB-5404
11
Connect conductors to the main circuit terminals in the conductor connection area as shown in Figs. 6 - 9.
Vertical terminals, 3 Poles Vertical terminals, 4 Poles
Right side view Back view Right side view Back view
Horizontal terminals, 3 Poles Horizontal terminals, 4 Poles
Right side view Back view Right side view Back view
Front terminals, 3 Poles Front terminals, 4 Poles
Right side view Back view Right side view Back view
Fig. 6 Conductor (include screw) connection area
(AR208S, AR212S, AR216S, AR220S, AR212H, AR220H, AR208D, AR212D, AR216D)
*Insulation distance of conductor connection area and earth metal is more than 12.5mm.

KRB-5404
12
Vertical terminals, 3 Poles Vertical terminals, 4 Poles
Right side view Back view Right side view Back view
Horizontal terminals, 3 Poles Horizontal terminals, 4 Poles
Right side view Back view Right side view Back view
Front terminals, 3 Poles Front terminals, 4 Poles
Right side view Back view Right side view Back view
Fig. 7 Conductor (include screw) connection area (AR325S, AR332S, AR316H, AR320H, AR325H, AR332H)
*Insulation distance of conductor connection area and earth metal is more than 12.5mm.

KRB-5404
13
Vertical terminals, 3 Poles
Right side view Back view
Vertical terminals,4 Poles
Right side view Back view
Fig. 8 Conductor (include screw) connection area (AR440S)
*Insulation distance of conductor connection area and earth metal is more than 12.5mm.

KRB-5404
14
ACB
ACB
ACB
Support
Support
Support
Conductor
Conductor
Conductor
●Vertical terminals, 3 Poles
Right side view Back view
●Vertical terminals, 4 Poles
Right side view Back view
Fig. 9 Conductor (include screw) connection area (AR440SB)
*Insulation distance of conductor connection area and earth metal is more than 12.5mm.
Use a support to hold conductors securely at distance L as shown in Fig. 10 and Table 2. Such a support will help preventing the
conductors and main circuit terminals from being deformed or damaged due to a large electromagnetic force caused by any fault
current. Use a high-quality insulating material for a support and secure enough insulation distance.
Table 2 Distance L
Short-circuit current (kA)
30
50
65
80
100
120
Distance
L (mm)
AR2
300
250
150
150
---
---
AR3
350
300
250
250
150
---
AR4
350
300
250
250
150
100
Fig. 10 Support mounting

KRB-5404
15
The following procedure makes it easy to make connections with plug-in tab terminals (#187) of position switches, control
circuit terminals, and auxiliary switches.
(1) Draw out the breaker body to the removed position, and remove it using an optional lifter or lifting plate. Refer to sections 4-2-2
and 2-1-2.
(2) If the ACB is equipped with the control terminal block cover, loosen both the cover fixing screws and remove the cover.
(3) Remove the terminal block fixing screws shown in Fig. 11.
Fig. 11 Terminal block fixing screws
(4) Tilt the terminal block down as shown in Fig. 12. After connecting wires, tilt the terminal block up again and fix it with the
terminal block fixing screws.
Fig. 12 Terminal block tilted down
Connect the control wire to a com. terminal as shown in Fig. 13.
Fig. 13 Com terminal connection
If any work is done near the ACB that have been installed, protect the openings of the ACB with appropriate covers to prevent
spatters, metal chips, wire cuttings or other foreign objects from entering the ACB.
Terminal block fixing screws
Hex head M6 × 10 (4) (red),
with spring washer and flat
washer
Tightening torque: 4.7 - 5.9 N·m
Auxiliary switches
Cover fixing screw
Auxiliary switch terminal screw
(Control terminal screw)
(Position switch terminal screw)
Pan head M4 × 8,
with spring washer and terminal
washer
Tightening torque: 1.3 - 1.7 N·m
Com. terminals
Control wire
Cross sectional area of the control
wire: 1.5 mm2(AWG16)
Small flat-blade screwdriver
* If the gap above the com. terminal is
too small to insert the screwdriver,
unscrew the two communication
terminal block mounting screws (pan
head M4 × 8, red, with spring and flat
washers), remove the terminal block,
connect the control wire and reinstall
the terminal block. The tightening
torque of the mounting screws is 1.3
–1.7 N·m.
8 -9mm

KRB-5404
16
3. GENERAL
3-1. Types and Descriptions
TemPower2 is available in types shown in Tables 3 and 4.
Table 3-1 Standard types
Frame size (A)
800
1250
1600
2000
2500
3200
4000
4000
Type
AR208S
AR212S
AR216S
AR220S
AR325S
AR332S
AR440SB
AR440S
Max. rated current [In] (A) *1, *2
IEC, EN, AS
800
1250
1600
2000
2500
3200
4000
4000
JIS
Marine use
N-phase rated current (A)
800
1250
1600
2000
2500
3200
4000
4000
Number of poles *3, *4
3
4
3
4
3
4
3
4
3
4
3
4
3
4
3
4
Dielectric withstand voltage [Ui] (50/60Hz) *5
1000
1000
1000
1000
1000
1000
1000
1000
Operating voltage [Ue] (50/60Hz) *6
690
690
690
690
690
690
690
690
Rated breaking/making current [kAsym rms/kApeak]
IEC ,EN, AS [ICS = ICU]
JIS C 8201-2-1 Ann.1 Ann.2
AC 690V *8
50/105
65/143
85/187
75/165
AC 440V
65/143 *10
85/187 *10
100/220
100/220
NK *7
AC 690V
50/115
65/153
*14
75/179
AC 450V
65/153 *10
85/201 *10
*14
100/245
For DC
DC 250V *9
40/40
Rated short-time current [ICW] [kA rms] (1 sec.)
65
85
100
100
Rated latching current (kA)
65
85
85
100
Endurance
in number of ON-
OFF cycles *11
Mechanical
With maintenance
30000
30000
30000
25000
20000
20000
15000
15000
Without maintenance
15000
15000
15000
12000
10000
10000
8000
8000
Electrical
Without
mainte-
nance
AC 460V
12000
12000
12000
10000
7000
7000
3000
3000
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)
Fixed
type
*12
a
360
445
360
445
360
445
360
445
466
586
466
586
-
-
-
-
b
460
-
-
c
290
-
-
d
75
-
-
Draw-
out type
*13
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
d
40
140
53
Connection method
Line side
Vertical, horizontal or front terminals
Vertical terminals
Vertical terminals
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 (In case ofAGR-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 ofAGR-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: 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: Aspecial version of the breaker is available to use 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 typeACBs.
*14: In applying or going to apply.
*15: For more information, please refer to page 23 and 25.

KRB-5404
17
Table 3-2 D types
Frame size (A)
800
1250
1600
Type
AR208D
AR212D
AR216D
Max. rated current [In] (A) *1, *2
IEC, EN, AS
800
1250
1600
JIS
Marine use
N-phase rated current (A)
800
1250
1600
Number of poles *3, *4
3
4
3
4
3
4
Dielectric withstand voltage [Ui] (50/60Hz) *5
1000
1000
1000
Operating voltage [Ue] (50/60Hz) *6
690
690
690
Rated breaking/making current [kAsym rms]
IEC ,EN, AS [ICS = ICU]
JIS C 8201-2-1 Ann.1 Ann.2
AC 690V *8
42
AC 440V
50
For DC
DC 250V *10
40
Rated short-time current [ICW] [kA rms] (1 sec.)
50
Endurance
in number of ON-
OFF cycles *11
Mechanical
With maintenance
26000
26000
26000
Without maintenance
12500
12500
12500
Electrical
Without
mainte-
nance
AC 460V
11000
11000
11000
Installation
Draw-out or fixed type
Mass (kg) for draw-out type
73
86
73
86
76
90
External dimensions (mm)
Fixed
type
*12
a
360
445
360
445
360
445
b
460
c
290
d
75
Draw-
out type
*13
a
354
439
354
439
354
439
b
460
c
345
d
40
Connection method
Line side
Vertical, horizontal or front terminals
Load side
Vertical, horizontal or front 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 ofAGR-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 *14
Rated voltage
AC100, AC110V, AC120V, AC200V, AC220V, AC240V,
DC24V, DC48V, DC100V, DC110V, DC125V, DC200V or
DC220V
*1: Ambient temperature: 40°C (45°C for marine used)）
*2: With horizontal terminals forAR208D –216D
*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
*10: Aspecial 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 both vertical and horizontal terminals
*13: This manual covers draw-out type ACBs.
*14: For more information, please refer to page 23 and 25.

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 [In] (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 [Ui] (50/60Hz) *5
1000
1000
1000
1000
1000
1000
1000
1000
1000
Operating voltage [Ue] (50/60Hz) *6
690
690
690
690
690
690
690
690
690
Rated breaking/making current [kAsym rms/kApeak] *7
IEC ,EN, AS [ICS = ICU]
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 [ICW] [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 ofAGR-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 ofAGR-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: Aspecial 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 typeACBs.
*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/s2(20G) max.
Atmosphere
No excessive water vapor, oil vapor, dust, or corrosive gases. No sudden change in temperature and no condensation.
Ammonia (NH3): 0.5 ppm max, Hydrogen sulfide (H2S)/sulfur dioxide (SO2)/hydrogen chloride (HCl): 0.1 ppm max.,
Chlorine (Cl2): 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 NH3: 50 ppm max, H2S: 10 ppm max., SO2/HCl: 5 ppm max., and Cl2: 1 ppm max.

KRB-5404
19
Table 6 shows the dielectric withstand voltage and the insulation resistance of theACBs.
CAUTION
Do not perform dielectric withstand/insulation resistance tests under other conditions than specified. Doing so may cause a
malfunction.
Table 6 Dielectric withstand voltage and insulation resistance
Circuit
Dielectric withstand voltage (50/60Hz)
Impulse withstand
voltage Uimp
Insulation
resistance
(DC500V Megger
used)
Main circuit
Between poles, and terminal group and ground
AC3500V
1 minute
12kV
300M
Control circuit
Auxiliary
switches
For general feeder
Between terminal group and ground
AC2500V
1 minute
6kV
100M
For microload
Between terminal group and ground
AC2000V
1 minute
4kV
100M
Position switches
Between terminal group and ground
AC2000V
1 minute
4kV
100M
Overcurrent release
Between terminal group and ground
AC2000V
1 minute
4kV
100M
Undervoltage trip device,
Reverse power trip device
Between terminal group and ground
AC2500V
1 minute
6kV
100M
Other accessories
Between terminal group and ground
AC2000V
1 minute
4kV
100M
The above data applies to newACBs. Device terminals within ACBs are not covered. Use a DC500V Megger to measure the insulation resistance.
Table 7 shows the internal resistance and power consumption of the ACBs.
Table 7 Internal resistance and power consumption
Type
AR208S
AR208D
AR212S
AR212D
AR216S
AR216D
AR220S
AR325S
AR332S
AR440SB
AR440S
Frame size (A)
800
1250
1600
2000
2500
3200
4000
4000
DC internal resistance (m) (for 1-poleACB)
0.033
0.033
0.028
0.024
0.014
0.014
0.017
0.014
AC power consumption (W) (for 3-pole ACB)
200
350
350
490
600
780
1650
1060
Type
AR212H
AR216H
AR220H
AR316H
AR320H
AR325H
AR332H
AR420H
AR440H
Frame size (A)
1250
1600
2000
1600
2000
2500
3200
2000
4000
DC internal resistance (m) (for 1-poleACB)
0.024
0.024
0.024
0.014
0.014
0.014
0.014
0.014
0.014
AC power consumption (W) (for 3-poleACB)
260
350
490
310
430
600
780
*1
1060
*1:Contact us.
Table 8 shows applicable current of the ACBs. The applicable current varies depending on the ambient temperatures.
Table 8 Dependence of applicable current on ambient temperature
Type
AR208S
AR208D
AR212S
AR212D
AR216S
AR216D
AR220S
AR325S
AR332S
AR440SB
AR440S
Standard
Conductor size
Ambient
temperature (°C)
2 × 50 × 5t
2 × 80 × 5t
2 × 100 × 5t
3 × 100 × 5t
2 × 100 × 10t
3 × 100 × 10t
4 × 150 × 10t
4 × 150 × 6t
IEC60947-2
EN60947-2
AS3947-2
JIS C8201-2-1
Ann.1 Ann.2
40 (standard ambient
temperature)
800
1250
1600
2000
2500
3200
4000
4000
45
800
1250
1600
2000
2500
3200
4000
4000
50
800
1250
1600
2000
2500
3200
3940
4000
55
800
1200
1540
1820
2500
2990
3820
3940
60
800
1150
1460
1740
2400
2850
3690
3760
NEMA,SG-3
ANSI C37.13
40 (standard ambient
temperature)
800
1250
1540
2000
2500
3200
3310
3700
45
800
1190
1470
1960
2500
3010
3200
3580
50
800
1130
1390
1860
2440
2860
3100
3470
55
790
1070
1310
1750
2300
2690
2980
3350
60
740
1000
1230
1640
2150
2520
2870
3140
JEC-160
40 (standard ambient
temperature)
800
1100
1460
1740
2370
2610
2870
3230
45
800
1060
1400
1680
2280
2510
2750
3100
50
800
1010
1340
1600
2180
2400
2620
2970
55
770
960
1280
1530
2080
2290
2490
2830
60
730
920
1220
1450
1970
2170
2360
2690
Type
AR212H
AR216H
AR220H
AR316H
AR320H
AR325H
AR332H
AR420H
AR440H
Standard
Conductor size
Ambient
temperature (°C)
2 × 80 × 5t
2 × 100 × 5t
3 × 100 × 5t
2 × 100 × 5t
3 × 100 × 5t
2 × 100 × 10t
3 × 100 × 10t
2 × 150 × 6t
4 × 150 × 6t
IEC60947-2
EN60947-2
AS3947-2
JIS C8201-2-1
Ann.1 Ann.2
40 (standard ambient
temperature)
1250
1600
2000
1600
2000
2500
3200
2000
4000
45
1250
1600
2000
1600
2000
2500
3200
2000
4000
50
1250
1600
2000
1600
2000
2500
3200
2000
4000
55
1250
1600
1820
1600
2000
2500
2990
2000
3940
60
1250
1550
1740
1600
2000
2400
2850
2000
3760
NEMA,SG-3
ANSI C37.13
40 (standard ambient
temperature)
1250
1600
2000
1600
2000
2500
3200
*1
3700
45
1250
1600
1960
1600
2000
2500
3010
*1
3580
50
1250
1600
1860
1600
2000
2440
2860
*1
3470
55
1250
1510
1750
1600
1950
2300
2690
*1
3350
60
1240
1420
1640
1550
1830
2150
2520
*1
3140
JEC-160
40 (standard ambient
temperature)
1250
1500
1740
1600
2000
2370
2610
*1
3230
45
1250
1440
1680
1600
2000
2280
2510
*1
3100
50
1250
1380
1600
1600
2000
2180
2400
*1
2970
55
1250
1310
1530
1600
1920
2080
2290
*1
2830
60
1230
1250
1450
1600
1820
1970
2170
*1
2690
*1:Contact us.
Notes: For AR208S, AR212S, AR216S, AR208D, AR212D and AR216D it is assumed that main circuit terminals are of horizontal type at both the line and load sides. For other
types, it is assumed that main circuit terminals are of vertical type at both the line and load sides. The above values may vary depending on the switchboard configuration.