Moulded Case Circuit Breaker (MCCB)

CM1 Series Moulded Case Circuit Breakers
CM1		 NS Series Moulded Case Circuit Breakers
NS		 ABB-S, HSM1, HM3 Series Moulded Case Circuit Breakers
ABB		 Legrand Series Moulded Case Circuit Breakers
DPX		 MEM Series Moulded Case Circuit Breakers
MEM
DORMAN		 3VL Series Moulded Case Circuit Breakers
3VL		 Hager Series Moulded Case Circuit Breakers
Hager

AM1(CM1) Series Moulded Case Circuit Breakers

1. Application
AM1 series moulded case circuit breaker is one of products developed and manufactured byadopting international advanced technology. It is supplied with rated insulating voltage 800Vand used for circuit of A.C. 50Hz, rated operating voltage AC 400V (or below), rated operatingcurrent up to 800A for infrequent changing over and starting of the motors.The products con-forms to IEC60947-2 standard.

2. Main Technical Specification(table1)
Type Rated current (A) Polenum-ber Rated insui-atingvolt-age
(V)		 Rated operat-ingvolt-age
(V)		 Arcing-
over
distance
(mm)		 Ultimate
short
circuit
breaking
capacity
(KA)		 Servies
short
circuit
breaking
capacity
(KA)		 Operation
perform-
ance		 Utiliza-tioncat-egory
Load Unload
AM1-63L (6),10, 16,20
25 ,32
40,50, 63		 3, 4 500V 400V 0 25 18 1500 8500 A
AM1-63M 0 50 35
AM1-100L (10),16, 20,25
32,40
50,63, 80,100		 800V 0(≤50) 35 22
AM1-100M 0(≤50) 50 35
AM1-100H 0(≤50) 85 50 1000 7000
AM1-225L 100,125
160,180
200,225		 ≤50 35 22
AM1-225M ≤50 50 35
AM1-225H ≤50 85 50 1000 4000
AM1-400L 225,250
315,350, 400		 ≤50 50 35
AM1-400M ≤100 65 42
AM1-630L 400,500
630		 ≤100 50 35
AM1-630M ≤100 65 42
AM1-630H ≤100 100 65
AM1-800M 630,700
800		 3 ≤100 75 50
AM1-800H ≤100 100 65
AM1-1250M 1000,1250 ≤100 100 65
AM1-1250H ≤100 125 5

Note: 6A no thermal protection The N-pole of four-poles breaker is sifed at the right side of the product has four types: Type A: No current trip-lease on N pole which making all the time, not closing and opening with the otherthree poles. Type B: No current trip-release on N pole which closing and opening with the other poles. Type C: With current trip-release which closing and opening with the other three poles. Type D: With current frip-release which making all the time not closing and opening with the other threepoles.

3. Protection Characteristic
The thermodynamic release of a circuit breaker provides the feature of inverse time-delay,while the magnetic release is the instantaneous operation as shown on table 2(distribution cir-cuit breaker) and table 3 (motor protection circuit breaker).

Table2
Rated current ofrelease (A) Thermodynamic release( ambient temp ) Operationalcurrent ofmagneticrelease (A)
1.05In(cold state)
Inoperative time(h)		 1.30In(heat state)
Operative time(h)
10≤In≤63 ≥1 < 1 10In±20%
225≤In≤630 ≥2 < 2
100≤In≤800 ≥2 < 2 5In±20%

Table3
Rated current ofrelease (A) Thermodynamic release( ambient temp ) Operationalcurrent ofmagneticrelease (A)
1.0In(cold state)
Inoperative time(h)		 1.20In(heat state)
Operative time (h)		 1.50In(heat state)
Operative time (h)		 7.2In(cold state)
Operative time(h)
10≤In≤225 ≥2 <2 ≤4min
≤8min		 4s< Tp ≤10s
6s< Tp ≤20s		 12In±20%
225≤In≤630

4. Accessories of Circuit breaker
4.1 The external accessories of the breaker
Motor-driven operation device
1) Wiring diagram of type CDM electromagnetic operation device(fitting AM1-63,100,225) seethe following drawing (wiring diagram of the external accessories of the breaker in the dottedframe)

Code description: SB1 SB2 stand for push button.(provided by users themselves) Number "1" "2" "3" stand for number of wiring terminals.
Voltage rating: AC50Hz 230V 400V DC 220V
2) Wiring diagram of type CD motor-driven operation device (fitting AM1-400 630 800) seebelows (wiring diagram of the external accessories of the breaker in the dotted frame)

Code description: SB1 SB2 stand for push button. (provided by users themselves) "X" stands for line connection terminals
Voltage rating: AC50Hz 230V 400V DC 220V

Rotary handle operation device
The mechanism is used in moulded case circuit breaker to operate the draw-out panel. Powerdistribution panel and supply box outside the panel by turning the handle ,and to ensure thedoor of panel would not be openned when the breaker being on. The hand-drive mechanism can be equiped with two types of operation, one is "A" modelsquare handle , the other is "B" model round handle.

4.2 Release pattern and accessories code

SHT: Shunt release; UVR: Under-voltage release;AX: Auxiliary contact; AL: Alarm contact
Release patternand accessories code Name/Type AM1-63,
100, 225		 AM1-400 AM1-630 AM1-800
200, 300 No accessories 200: magnetic release (only short circuit protection)300: thermal magnetic release(both overload and short circuit protection)
208, 308 Alarm contact
210, 310 Shunt release
220, 320 Auxiliary contact
230, 330 Under-voltage release
240, 340 Shunt release
Auxiliary contact
250, 350 Shunt release
Under-voltage release
260, 360 Two group of auxiliary contact
270,370 Under-voltage release
Auxiliary contact
218, 318 Shunt release
Alarm contact
228, 328 Alarm contact Auxiliary contact
238, 338 Under-voltage releaseAlarm contact
248, 348 Shunt release, Alarm contact,Auxiliary contact
268, 368 Two group of auxiliary contact,
Alarm contact
278, 378 Shunt release, Alarm contact,Under-voltage release

According to user's demands, accessories could lead to direct wire outcoming or line wiringterminals could be added(please mark out in case of making order).

Under-voltage release
Wring diagram of the under-voltage module connected externally (the internal accessories inthe dotted frame)Ue: AC50Hz 230V, 400V

When the operation voltage is 35%~70% of the rated voltage, the under-voltage release shouldmake the breaker trip correctly.When the operation voltage is 85%~110% of the rated voltage, the under-voltage release shouldmake the breaker close.In case of the operation voltage less than 35% of the rated voltage, the under-voltage shouldprevent the breaker from closing.Note: Only the under-voltage release should be energized in advanced, the breaker could berecramped and turned-on, otherwise the breaker will be damaged.

Shunt release
Scheme of wiring(the internal accessories in the dotted frame)"K" is the slow motion switch normal-close contact connect the coil in series in the shunt release.It turns-on or turns-off voluntarily as soon as the breaker on or off.

Voltage rating: AC50Hz 230V or 400V, DC 110V 220VThe shunt release should make the breaker trip reliably when the operation voltage is 70%~110%of the rated control voltage.

Alarm contact
The position of the breaker in "off" or "on"
The position of the breaker in "free trip" (alarm) B11 and B12 switch from "close" to "open", statusof B11 and B14 switch from "open" to "close"

Auxiliary Contact
When the breaker is in"off" For the breaker with frame current400A and above
For the breaker with frame current225A and below
When the breaker is in"on" When the breaker is in "off", the contacts switch from "close" to "open".When the breaker is in "off",the contacts switch from "open"to close"

Type Outline Dimensions(mm) Installation
Dimensions
Front panel connection Back panel
connection		 Plug-in connection
W W1 L L1 L2 H H1 H2 H3 H4 C D E F G W2 W3 L4 H5 H6 φD φD1 L5 L6 H7 H8 H9 H10 J K φd1 M A B φd
AM1-63L 76 50 135 170 117 74 92 7 4 85 28.5 48 22 14 100 75 117 44 66 8 8 25 117 3.5
AM1-63M 76 50 135 170 117 82 98.5 28 7 4 85 28.5 48 22 14 100 75 117 44 66 8 8 25 117 3.5
AM1-100L 92 60 150 185 132 68 86 24 7 4 88 35.5 50 22 17.5 129 68 108 26 16 92 168 50 62 74 17.5 56 60 6.5 M8 30 129 4.5
AM1-100M 92 60 150 185 132 86 104 24 7 4 88 35.5 50 22 17.5 122 90 129 68 108 26 16 92 168 50 62 74 17.5 56 60 6.5 M8 30 129 4.5
AM1-100H 92 60 150 185 132 86 104 24 7 4 88 35.5 50 22 17.5 129 68 108 26 16 92 168 50 62 74 17.5 56 60 6.5 M8 30 129 4.5
AM1-225L 107 70 165 215 144 86 110 24 5 4 102 31.5 50 22 17 126 66 110 20 20 94 183 50 69.5 84.5 17.5 54 70 6.5 M8 35 126 5
AM1-225M 107 70 165 215 144 103 127 24 5 4 102 31.5 50 22 17 142 105 126 66 110 20 20 94 183 50 69.5 84.5 17.5 54 70 6.5 M8 35 126 5
AM1-225H 107 70 165 215 144 103 127 24 5 4 102 31.5 50 22 17 126 66 110 20 20 94 183 50 69.5 84.5 17.5 54 70 6.5 M8 35 126 5
AM1-400L 150 96 257 357 224 105 155 38 8 6 128 64.5 89 65 ?6 198 144 194 60 120 33 33 169 279 60 83.5 106.5 21 129 60 8.5 M10 44 194 7
AM1-400M 182 116 270 370 234 110 160 43 8 6 134 70 89 65 ?9 200 65 125 36 36 169 299 60 92 110 21 123 100 8.5 M12 58 200 7
AM1-630L 182 116 270 370 234 110 160 43 8 6 134 70 89 65 ?9 240 174 200 65 125 36 36 169 299 60 92 110 21 123 100 8.5 M12 58 200 7
AM1-630M 182 116 270 370 234 110 160 43 8 6 134 70 89 65 ?9 200 65 125 36 36 169 299 60 92 110 21 123 100 8.5 M12 58 200 7
AM1-630H 210 140 280 380 243 106 145 33 30 128 128 70 243 7.2
AM1-800M 210 140 280 380 243 106 145 33 30 128 128 70 243 7.2
AM1-800H 210 140 280 380 243 106 145 33 30 128 128 70 243 7.2

NS Series Moulded Case Circuit Breakers

1.Application
NS series moulded case circuit breaker is one of breaker which adopts international ad-vanced design, manufacture technology to develop. The rated insulating voltage is 750V, suit-able for AC 50Hz(60Hz),rated working voltage 690V or below, rated working current is 12.5A to1250A of circuit and used in distributing electric energy, and non-frequent breaking in the nor-mal conditions , protecting the current& equipment from overload&under voltage, circuit breakerwith rated frame current 400A or below,can be used in mousecage motor's non-frequent start,breaking during working, protecting motor from overload, short circuit&undervoltage,the prod-uct conforms to IEC60947-2 standard.

2.Main Technical Specifications
Type Pole number Rated insulating voltage(V) Rated operating voltage(V) Rated ultimate short circuit breaking capacity Icu (KA) at 380/415V Rated servies short circuit breaking capacity Ics at 380/415V(KA) Operation performance Utilization category
ON OFF
NS-100N 3, 4pole 750 690 and below 25 25 1500 8500 A
NS-100H 70 70
NS-100L 150 150
NS-160N 36 36 1000 7000
NS-160H 70 70
NS-160L 150 150
NS-250N 36 36 1000 7000
NS-250H 70 70
NS-250L 150 150
NS-400N 45 45 1000 4000
NS-400H 70 70
NS-400L 150 150
NS-630N 45 45 1000 4000
NS-630H 70 70
NS-630L 150 150
NS-1250N 3 pole 50 37.5 1000 4000
NS-1600N 50 37.5
Note:1. The N-pole breaker has no protection which closing and opening with the other three poles. 2. The type of thermal magnetic for NS-400/630 has no four poles.

3 Trip units main technical parameter
Thermal magnetic release


Type Rated currentIn(A) Note
NS-100 12.5,16,20,25,32,40,50,63,80,100 Tadjustable (0.8~1In)M adjustable (5~10In)
NS-160 16,20,25,32,40,50,63,80,100,125,160
NS-250 160,180,200,225,250
NS-400 315,350,400
NS-630 400,500,630
NS-1250 800,1000,1250 Tadjustable (0.8~1In)M fixed
NS-1600 1000,1250,1600

Electronic release
NS 22SE: protection of low-voltage distribution networks for NS-100\160\250


1. Overload protection with adjustable threshold
2. Short-circuit protection with adjustable threshold
3. Load indication : light at 90% of Ir setting threshold;
Flashing at 105% or more of Ir setting threshold

Type Rated current In(A) Note
NS-100 40,100 Ir=0.4~1×In(adjustable 48 setting)
Tripping between 1.05~.3×Ir (IEC60947-2)
(Long-time overload protection)
Im=2-3-4-5-6-7-8-10×Ir
(Short-circuit protection)
NS-160 40,100,160
NS-250 40,100,160,250

NS 22ME: protection of motor for NS-100\160\250


1. Overload protection with adjustable threshold, as defined by IEC60947-4 (2) tripping class 10
2. Short-circuit protection with fixed threshold (13xIr)
3. phase failure protection (tripping time delay between 3.5s-6s)
4. Load indication : dark less than 105% of Ir setting threshold;
Flashing at 105% or more of Ir setting threshold

Type Rated current In(A) Note
NS-100 40,50,80,100 Ir=0.6-0.63-0.67-0.71-0.75-0.80-0.85-0.90-0.95-1×In
NS-160 40,50,80,100,150
NS-250 40,50,80,100,150,220

NS 23SE: protection of low-voltage distribution networks for NS-400\630



1. Overload protection with adjustable threshold
2. Short-circuit protection with adjustable threshold
3. Load indication : light at 90% of Ir setting threshold;
Flashing at 105% or more of Ir setting threshold

Type Rated current In(A) Note
NS-400 400 Ir=0.4~1×In(adjustable 48 setting)
Tripping between 1.05~1.3×Ir (IEC60947-2)
(Long-time overload protection)
Im=2-3-4-5-6-7-8-10×Ir
(Short-circuit protection)
NS-630 630

NS 53UE: protection of low-voltage distribution networks for NS-400\630



1. Overload protection with adjustable threshold, as defined by IEC60947-2
2. Short-circuit protection with adjustable threshold
3. Instantaneous short-circuit protection
4. Earth fault protection with adjustable threshold
5. Load indication : light at 90% of Ir setting threshold;
Flashing more than Ir setting threshold
6. Fault indication
LEDs indicates the type of fault that caused tripping
Overload (LT protection) or abnormal component temperature (>Ir);
Short-circuit (ST or instantaneous protection)( >Im);
Earth fault (if earth fault protection option is present)(Ig);
Microprocessor malfunction (both (>Ir) and ( >Im) LEDs go on ,plus the (Ig) LEDs if earth fault protection option is present )
Battery powered. Spare battery are supplied in an adapter box. When a fault occurs , the LED indicating the type of fault ,lights for about 10 minutes . The information is however stored in memory . The LED can be illuminated by pressing the test pushbutton. The LED automatically goes off and the memory is cleared when the circuit breaker is reset .

Type Rated current In(A) Note
NS-400 400

Ir=0.4~1×In(adjustable 48 setting)
Tripping between 1.05~1.3×Ir (IEC60947-2)
at 6×Ir Trip time: 1s, 2s, 4s, 8s, 16s(adjustable)
(Long-time overload protection)
Isd=1.5-2-3-4-5-6-7-8-10×Ir
Trip time: 0s, 0.1s, 0.2s, 0.3s adjustable+I2t
(Short-circuit short time delay protection)
Ii=1.5-2-3-4-6-7-8-10-11×Ir
(Instantaneous short-circuit protection)
Ig=0.1-0.2-0.3-0.4-0.5-0.6-0.7-0.8-1×Ir
Trip time: 0.1s, 0.2s, 0.3s, 0.4s adjustable+I2t
(Earth fault protection) (If option is present)
NS-630 630

NS 43ME: protection of motor for NS-400\630


1. Overload protection with adjustable threshold, as defined by IEC60947-4 (2) tripping class 10A,10 and 20
2. Short-circuit protection with adjustable threshold (6...13xIr)
3. Phase failure protection (built-in electronic release: operates unbalanced single-phase currentat 40% and more than )(tripping time delay 4s±10%),as defined by IEC60947-4.1
4. Load indication : Flashing more than Ir setting threshold
5. Fault indication
LEDs indicates the type of fault that caused tripping
Overload (LT protection) or abnormal component temperature (>Ir);
Short-circuit (ST or instantaneous protection)( >Im);
Phase failure (right LED);
Microprocessor malfunction ( (>Ir) ( >Im) and phase failure LEDs all go on )
Battery powered. Spare battery are supplied in an adapter box. When a fault occurs ,the LEDindicating the type of fault ,lights for about 10 minutes . The information is however stored inmemory . The LED can be illuminated by pressing the test pushbutton. The LED automaticallygoes off and the memory is cleared when the circuit breaker is reset .

Type Rated current In(A) Note
NS-400 400

Ir=0.4~1×In(adjustable 48 setting)
Trip degree: class 10A, 10,20(IEC60947-4)
(Long-time overload protection)
Im=6-7-8-9-10-11-12-13×Ir
(Short-circuit protection)
NS-630 630

4.Accessories

Accessories Rated operating voltage Consumption For type
Pick-up Seal-in
Shunt release(MX) 24V
100V
220/230V
380/400V		 <10VA <5VA NS-100~630
Under-voltagerelease(UN) 220/230V
380/400V		 <10VA <5VA

Accessories Rated operating voltage Consumption For type
AC12 AC15
Auxiliary contact(OF) 380/400V 6 3 NS-100~630
Alarm contact(AL) 380/400V 6 3

Rotary handle
Direct rotary handle
Degree of protection:IP40
Function:
1) suitability for isolation
2) indication of three positions 0(off) I(on) and tripped
3) press "push to trip" button, can trip-free
4) visibility of and access to trip unit settings
5) the circuit breaker can be locked in the off position by one to three padlocks , diameter 5 to 8mm(not supplied)
Extended rotary handle
Degree of protection:IP55
Function:
1) Suitability for isolation
2) Indication of three positions 0(off) I(on) and tripped
3) Visibility of and access to trip unit settings when the door is open
4) Door opening prevented when circuit breaker is on
5) The circuit breaker can be locked in the off position by one to three padlocks , diameter 5 to 8mm(not supplied).Locking prevents opening of the switchboard door

5.Installation
Circuit breaker may be mounted vertically, horizontally or flat on their back without any derating of characteristics.
6.Fix
Mounting on backplate , mounting on rails
7.Connection
Front panel connection , black panel connection , plug-in connection
8. Outline and Installation Dimension

NS-100~630

mm C C1 C2 C3 G G1 G4 G5 H H1 H2
NS 100/160/250N/H/L 29 76 54 108 62.5 125 70 140 80.5 161 94
NS 400/630N/H/L 41.5 116 92.5 184 100 200 113.5 227 127.5 255 142.5

mm H3 H4 H5 H6 H7 K K1 K2 L L1 L2 P1 P2 P4 P5
NS 100/160/250N/H/L 188 160.5 321 178.5 357 17.5 35 70 52.5 105 140 81 86 111* 83
NS 400/630N/H/L 285 240 480 237 474 22.5 45 90 70 140 185 95.5 110 168 107

mm P6 R R1 R2 R4 R5 φT φT4 (Ue)
NS 100/160/250N/H/L 88 14.5 29 54 108 143 6 22 ≤32
NS 400/630N/H/L 112 31.5 63 71.5 143 188 6 32 ≤32

*P4=126 is suitable for=NS 250N/H/L

ABB-S, HSM1, HM3 Series Moulded Case Circuit Breakers
     
     

1.Application
AM3 series moulded case circuit breaker , it's applicable circuit of AC 50Hz(or 60Hz),ratedinsulation voltage 690V(AM3-125 500V),rated operating voltage AC 690V or below ,rated oper-ating current 12.5-1600A, for distribute energy of electric and infrequent making and breakingcircuit in normal condition. The circuit-breakers are provided with the function of the protectionagainst overload and short circuit and under-voltage. The circuit breakers comply with standardof IEC60947-2.The circuit-breakers are double insulating (Inm=250A or above), the controlcircuit of the accessories is set apart with the main circuit , and doesn’t need to open the coverof the circuit-breaker when install the accessories.

2. Specification
Type Pole number Rated insulating voltage(V) Rated operating voltage(V) Ultimate short circuitbreaking capacity Icu(KA) Rated short-circuitserrice breakingcapocity Ics(%icu) Utilization category
AC380V(400) AC660V(690)
AM3-125L 1,2,3,4 500 500 25 - 50% A
AM3-160L 3,4 690 690 and below 35 8 75%
AM3-160M 50 10 75%
AM3-250L 800 35 14 100%
AM3-250M 65 18 75%
AM3-250H 85 20 75%
AM3-400L 35 18 100%
AM3-400M 65 22 100%
AM3-400H 100 30 75%
AM3-630L 35 20 100%
AM3-630M 50 22 100%
AM3-630H 65 25 100%
AM3-800L 35 20 100%
AM3-800M 50 22 100%
AM3-800H 65 25 100%
AM3-1250/1600L 3 50 20 100%

3. Trip units main technical parameter (see table 2)



Type Thermal magnetic release Electronic release
Rated currentIn(A) Note Ratedcurrent In(A) Note
AM3-125 12.5,16,20,25,32,40,50,63,80,100,125 T fixedM fixed -  
AM3-160 16,20,25,32,40,50,63,80,100,125,160 T adjustable (0.7~1In)M fixed -  
AM3-250 100,125,160,180,225,250 T adjustable (0.7~1In)M fixed -  
AM3-400 225,250,315,350,400 T fixed or adjustable (0.7~1In)M fixed 320,400 I1=0.4...1×In AM3 PR211(L-LI)
I1=0.4...1×In AM3 PR212(LSI-LSIG)
Tripping between 1.05...1.3×I1(IEC60947-2) I2t=constant(Long-time overload protection)
I2=1-2-3-4-6-8-10×In
t2=0.05s,0.1s,0.25s,0.5s adjustable(Short-circuit short time delay protection)
I3=1.5-2-4-6-8-10-12×In(Instantaneous short-circuit protection)
I4=0.2-0.3-0.4-0.6-0.8-0.9-1×In
t4= 0.1s, 0.2s, 0.4s, 0.8s adjustable(Earth fault protection)
AM3-630 400,500,630 T fixedM fixed 630
AM3-800 630,700,800 T fixedM fixed 800
AM3-1250 - - 800,1000,1250
AM3-1600 - - 1000,1250,1600

Note: T-thermal M-magnetic L-long time S-short time relay I-instantaneous G-earth fault AM3-125/160 In=12.5,16,20,32,40 magnetic protection that is fixed at 500A.

4. Accessories
4.1 The external accessories of the breaker
Motor-driven operation device
1) Wiring diagram of type CDM electromagnetic operation device(fitting AM3-125,160,250) seethe following drawing (wiring diagram of the external accessories of the breaker in the dottedframe)

Code description: SB1,SB2 stand for push button.(provided by users themselves) Number "1","2","3" stand for number of wiring terminals.Voltage rating: AC50Hz 230V 400V, DC 220V2) Wiring diagram of type CD motor-driven operation device (fitting AM3-400 630 800) seebelows (wiring diagram of the external accessories of the breaker in the dotted frame)

Code description: SB1,SB2 stand for push button. (provided by users themselves) "X" stands for line connection terminalsVoltage rating: AC50Hz 230V 400V; DC220V

Rotary handle
Economic extended rotary handleDegree of protection:IP30Function:
1) With indication of isolation
2) Indication of three positions 0(off) I(on) and tripped
3) Door opening prevented when circuit breaker is on

4.2 The internal accessories of the breaker
Undervoltage release
Us: AC50/60Hz 400V, 230VWhen the operation voltage is 35%~70% of the rated voltage, the under-voltage release shouldmake the breaker trip correctly.When the operation voltage is 85%~110% of the rated voltage, the under-voltage release shouldmake the breaker close.In case of the operation voltage less than 35% of the rated voltage, the under-voltage shouldprevent the breaker from closing.Note: Only the under-voltage release should be energized in advanced, the breaker could berecramped and turned-on, otherwise the breaker will be damaged.

Shunt release
Us: AC50/60Hz 400V 230V; DC110V 220VThe shunt release should make the breaker trip reliably when the operation voltage is 70%~110%of the rated control voltage

Auxiliary Contact
When the breaker is in"off"   Size2N/O+2N/C1N/O+1N/C
 
When the breaker is in"on" When the breaker is in "off", the contacts switch from "close" to "open".When the breaker is in "off", the contacts switch from "open" to close"

The position of the breaker in "off" or "on"  
The position of the breaker in "free release"(alarm) B11 and B12 switch from "close" to "open", statusof B11 and B14 switch from "open" to "close"

Auxiliary contact and Alarm contact: Auxiliary contact is as some as Alarm contact , the tech-nical parameter(see table 3)

table3
Rated heatingcurrent Ith (A) Rated operating current Ie(A) Suited Frame Inm(A)
AC 380V DC 220V
3 0.3 0.15 125, 160
3 0.4 0.15 250, 400
3 0.4 0.15 630, 800,1250, 1600

5.Installation
Circuit breaker may be mounted vertically, horizontally or flat on their back without any derating of characteristics.
6.Fix
Mounting on backplate.
7.Connection
Front panel connection , black panel connection , plug-in connection
8.Outline and Installation Dimension

Type Outline Dimensions Installation Dimensions
W L H H1 L1 C A B d
AM3-125 78 120 71 91 102 25 25 100 4.5
AM3-160 90 120 71 93 102 30 30 100 4.5
AM3-250 105 170 103.5 135 139 35 35 139 5.5
AM3-400 140 254 101.5 135 218 43.75 43.75 214 5.5
AM3-630/800 210 268 103.5 159 241 70 70 237 5.5
AM3-1250/1600 210 406 138.5 204.5 326 70 70 378 5.5

DPX Moulded Case Circuit Breakers
   

1.Application
DPX series MCCB is applicable circuit of AC 50/60Hz, rated current 25-250A, for distributeenergy of electricity & infrequent making & breaking circuit in normal conditions. The productsconforms to IEC60947-2.

2. Specification
Type DPX-125 DPX-250
Poles number 3 3
Rated current In(A) 25~125 125~250
Rated working voltage Ue(V) (50/60Hz) 500 600
Rated working voltage Ue(V) 250 250
Rated insulation voltage Ui~(V) 500 690
Rated impulse voltage Uimp(KV) 6 8
Utilisation category A A
Rated limitedshort-circuitbreaking capacityIcu(KA) 230/240V~ 22 60
400/415V~ 16 36
440V~ 10 30
480/500V~ 8 25
600V~ - 20
690V~ - 16
250V 16 36
Rated short-circuit breaking service capacity Ics(%Icu) 100 100
Life(open, close fora time) Mechanical 7000 7000
Electrical 1000 1000

3. Outline and Installation Dimension

 
 

MEM Series Moulded Case Circuit Breakers
   

1.Application
MEM series MCCB is applicable circuit of AC 50/60Hz, rated insulation voltage 690V, ratedcurrent 16-250A, for distribute energy of electricity & infrequent making & breaking circuit innormal conditions, protecting when circuit is overloaded, short circuit. The products conforms toIEC60947-2 standard.

2. Specification
Type MEM-125 MEM-250
Poles number 3 3
Rated current In(A) 16, 20, 32, 40, 50, 63,80, 100, 125 100, 160, 180, 200, 250
Utilisation category A A
Rated ultimate short-circuit breaking capacityIcu(KA) at 415V 16 25
Rated short-circuit service breaking capacityIcs(%Icu) at 415V 100 100

3. Outline and Installation Dimension

DORMAN Series Moulded Case Circuit Breakers
     

1.Application
AM6 Series Moulded Case Circuit Breaker is available in two frame sizes from 25 to 800amps, loadline series of moulded case circuit breakers provide overload and short-circuit pro-tection for the full range of transformer sizes encountered in normal service. The overload andinstantaneous tripping elements, adjustable over all wide band, make these MCCBs ideal formany distribution application.

2. Specification
Type AM6-100 AM6-160 AM6-250 AM6-400 AM6-630 AM6-800
Poles number 1,3 3 3 3 3 3
Rated current In(A) 25,32,40,50,60,80,100 125,160 160,200250 300,400 500,630 700,800
Rated insulation voltage Ui(V) AC500 AC660 AC660 AC660 AC660 AC660
Utilisation category A A A A A A
Rated ultimate short-circuit breaking capacity Icu(KA) at 415V 25 65 65 65 65 65
Rated short-circuit service breakingcapacity Ics(%Icu) at 415V 75% 75% 75% 75% 75% 75%

Tripping Elements
Overload front adjustable 0.7-1.0 times rated current
Instantaneous: non-adjustable AA 25~63=400A
AA 80~250=10In
Switch Disconnector
Current rating In(A): 250 3pold
3. Outline and Installation Dimension

3VL Series Moulded Case Circuit Breakers
   

1.Application

3VL series MCCB is one of new products developed and manufactured by adopting interna-tional advanced technology. It is supplied with rated insutaling voltage 690V and used for circuitof AC 50/60Hz, rated operating voltage AC 415V or below, rated opereating current from 16A to250A. It is designed for protection of electric circuit, motors, transformers and other equipments.The products conforms to IEC60947-2 standard.

2. Specification
Type 3VL-160X 3VL-160 3VL-250 3VL-400 3VL-630
Poles number 3 3 3 3 3
Rated current In(A) 20~160A 50~160A 100~250A 200~400A 315~400A
Rated operating voltage Ue(V) AC 50/60Hz 690 690 690 690 690
Rated insulation voltage Ui(V) 800 800 800 800 800
Rated impulse withstand voltage Uimp(KV) 8 8 8 8 8
Utilisation category A A A A A
Rated ultimate short-circuit breaking capacityIcu(KA) AC 220/240V 65 65 65 65 65
  AC 380/415V 40 40 40 40 40
  AC 690V 8 12 12 12 12
Rated shor