1. Application of moulded case circuit breaker
AHM1 series moulded case circuit breaker is one of products developed and manufactured by adopting international advanced technology. It is supplied with rated insulating voltage 550 and 800V and used for circuit of AC 50/60Hz, rated operating voltage AC 400V (or below), rated operating current up to 1600A for infrequent changing over and starting of the motors.The products conforms to IEC60947-2 standard.
2. Main Technical Specification(table1) of moulded case circuit breaker
| Type |
Rated
current (A) |
Polenum-ber |
Ratedinsui-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 |
| CM1-63L |
(6),10
16,20
25 ,32
40,50
63 |
3, 4 |
500V |
400V |
0 |
25 |
18 |
1500 |
8500 |
A |
| CM1-63M |
0 |
50 |
35 |
| CM1-100L |
(10),16
20,25
32,40
50,63
80,100 |
800V |
0(≤50) |
35 |
22 |
| CM1-100M |
0(≤50) |
50 |
35 |
| CM1-100H |
0(≤50) |
85 |
50 |
1000 |
7000 |
| CM1-225L |
100,125
160,180
200,225 |
≤50 |
35 |
22 |
| CM1-225M |
≤50 |
50 |
35 |
| CM1-225H |
≤50 |
85 |
50 |
1000 |
4000 |
| CM1-400L |
225,250
315,350
400 |
≤50 |
50 |
35 |
| CM1-400M |
≤100 |
65 |
42 |
| CM1-630L |
400,500
630 |
≤100 |
50 |
35 |
| CM1-630M |
≤100 |
65 |
42 |
| CM1-630H |
≤100 |
100 |
65 |
| CM1-800M |
630,700
800 |
3 |
≤100 |
75 |
50 |
| CM1-800H |
≤100 |
100 |
65 |
| CM1-1250M |
1000,1250 |
≤100 |
100 |
65 |
| CM1-1250H |
≤100 |
125 |
75 |
| CM1-1600M |
1600 |
≤100 |
150 |
80 |
Note: 6A without thermal protection
The N-pole of four-poles breaker is sited at the right side of the product has four types:
Type A: Without current trip-lease on N pole which making all the time, not closing and opening with the other three poles.
Type B: Without 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 trip-release which making all the time not closing and opening with the other three poles.
3. Protection Characteristic of moulded case circuit breaker
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 circuit breaker) and table 3 (motor protection circuit breaker).
Table2
| Rated current of release (A) |
ThermodynCMic release( CMbient temperature ) land +40°C marine +45°C |
Operating current of magnetic release (A) |
| 1.05In(cold state) Inoperative time(h) |
1.30In(heat state) Operative time(h) |
| 10≤In≤63 |
≥ 1 |
< 1 |
10In±20% |
| 63<In≤100 |
≥ 2 |
< 2 |
| 100≤In≤800 |
≥ 2 |
< 2 |
5In±20% 10In±20% |
Table3
| Rated current |
ThermodynCMic release ( CMbient temperature ) land +40°C marine +45°C |
Operating current of magnetic release (A) |
| of release (A) |
1.0In(cold state) non-trip time(h) |
1.20In(heat state) trip time (h) |
1.50In(heat state) trip time (h) |
7.2In(cold state) trip time(h) |
| 10 ≤ In ≤ 225 |
≥ 2 |
<2 |
≤ 4min |
4s < Tp ≤ 10s |
12In±20% |
| 225 ≤ In ≤ 630 |
≤ 8min |
6s < Tp ≤ 20s
|
MCCB Tmax 3Pole 4Pole 100A 225A 250A 400A 600A 800A 1000A 1250A 1600A 2000A 3P 4P Molded Case Circuit Breaker
S Series MCCB
1. Application of S moulded case circuit breaker
The S series moulded case circuit breaker applies to breaking and making operation in AC 50/60Hz, rated operation voltage 690V or less and rated current up to 2000A circuit. It can distribute electric energy in circuit, work as the overload of wiring and power supply equipment, or as the protector of short circuit and under voltage. Additionally, this breaker can switch line and start motor unfrequnently. The other characters of the products are: small size, large contact spacings, high capability of break-make, and short arcing distance, this performance is better than that of CM1 series. This performance is as well as original S series circuit breaker. The product complies with the standards of IEC90947-2.
2. Working Circumstance
1). Altitude of the installation place shall not be higher than 2000m(in case it's higher, do ask for advice
from manufacturer first)
2). Circumstance temperature shouldn't be higher than +40ºC or lower than -50ºC , average temperature of
24h shouldn't exceed +35ºC .
Attention: If temperature breaks the limits issued above, users shall operate the product according
to manufacturer's advice.
3). Working area shall not contain any explosive, metal corrosive or inductive media, the place also
should weatherproof.
4). Relative atmosphere humidity shall not exceed 90%
5). Working place shouldn't be shaky or exposed to rain & snow, connect upper terminals to power
source while lower terminals to load, inclination on each side shall not exceed 50.
3. Technical Data of S MCCB
1). Rated working voltage Ue: 380V/400V, 660V/690V.
2). Rated insulation voltage Ui: 690V.
3). Rated impulse withstanding voltage Uimp: 8kV.
4). Sorted by tripping unit: a) Thermalmagnetic type (S20-125~800), b)Electronic type(S20-400~1600).
5). Sorted by phase: a)3P, b)4P.
6). Sorted by application: a)distribution system type, b)motor protection type.
7). Sorted by rated ultimate breaking capacity: a)S-standard type, b)H-high breaking capacity type
8). Sorted by operation: a) manual type(no code),b) electrical operating type(coded as "D") c) rotatory handle type(coded as "Z")
4. Tripping Characteristics of S MCCB
| Rated current of release (A) |
Thermo dynamic release (ambient temp+40°C) |
Operational current
of magnetic
release (A) |
| 1.05In (cold state) inoperative time (h) |
1.30In (heat state) inoperative time (h) |
| In≤63 |
≥1 |
< 1 |
10-50In±10% |
| 63 < In≤250 |
≥2 |
< 2 |
10In±20% |
| 25 < In≤800 |
≥2 |
< 2 |
5-10In±20% |
| Type |
Rated
Current(A) |
Pole Number |
Rated Insulation Voltage |
Rated Operating Voltage |
Ultimate Short Circuit Breaking Capacity(KA) |
Servies Short Circuit Breaking Capacity (KA) |
operation
performance
(Endurance) |
AC380V
(400V) |
AC660V
(690V) |
DC250 |
AC380V
(400V) |
AC660V
(690V) |
Load |
Unload |
| S-125E |
12.5,16,
20,25,32,
40,50,63,
80,100,125 |
2P
3P
4P |
660V |
380V
660V |
15 |
- |
- |
7.5 |
- |
3000 |
7000 |
| S-125S |
25 |
- |
20 |
16 |
- |
| S-160S |
16,20,32,
40,50,63,
80,100,125,
160 |
35 |
8 |
20 |
18 |
- |
4000 |
6000 |
| S-160H |
50 |
10 |
40 |
25 |
- |
| S-250S |
100,125,160,
180,200,225,
250 |
35 |
10 |
40 |
18 |
- |
2000 |
6000 |
| S-250M |
50 |
16 |
40 |
30 |
- |
| S-250H |
65 |
18 |
40 |
48 |
- |
| S-400S |
200,225,250,
315,350,400 |
35 |
16 |
40 |
18 |
- |
1000 |
4000 |
| S-400M |
50 |
20 |
40 |
30 |
- |
| S-400H |
65 |
25 |
40 |
48 |
- |
| S-630S |
400, 500,
630 |
50 |
20 |
40 |
30 |
- |
1000 |
4000 |
| S-630M |
65 |
25 |
40 |
48 |
- |
| S-630H |
80 |
30 |
40 |
60 |
- |
| S-800S |
500, 630,
700, 800 |
50 |
20 |
40 |
30 |
- |
1000 |
4000 |
3P 4P 250A 800V NS NSX mould case circuit breaker, high breaking capacity magnetic MCCB, Moulded Case Circuit Breaker
1.Description of NS series moulded case circuit breaker:
NS series moulded case circuit breaker is one of breaker which adopts international advanced design, manufacture technology to develop. The rated insulating voltage is 750V, suitable for AC 50Hz(60Hz),rated working voltage 690V or below, rated working current is 12.5A to 1250A of circuit and used in distributing electric energy, and non-frequent breaking in the normal conditions, protecting the equipment from overload, under voltage. Circuit breaker with 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 product conforms to IEC60947-2 standard.
2. Working environment of NS series moulded case circuit breaker:
♦ The altitude bellows 2,000m;
♦ Circuit breaker may be used between -25ºC and +70ºC. For temperatures higher than 40ºC(65ºC for circuit breakers used to protect motor feeders), devices must be derated;
♦ It can withstand the impact from humid air, salt spray, oil mist and mold;
♦ It should be installed in places with no danger of explosion, no conductive dust, and no substance enough to corrode metal or damage the insulation;
♦ In places with no rain and snow erosion;
♦ Pollution degree 3;
♦ Installation category III.
3. Technical Data
| NS/NSX 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/NSX-100N |
3, 4pole |
750 |
690 and below |
25 |
25 |
1500 |
8500 |
A |
| NS/NSX -100H |
70 |
70 |
| NS/NSX -100L |
150 |
150 |
| NS/NSX -160N |
36 |
36 |
1000 |
7000 |
| NS/NSX -160H |
70 |
70 |
| NS/NSX -160L |
150 |
150 |
| NS/NSX -250N |
36 |
36 |
1000 |
7000 |
| NS/NSX -250H |
70 |
70 |
| NS/NSX -250L |
150 |
150 |
| NS/NSX -400N |
45 |
45 |
1000 |
4000 |
| NS/NSX -400H |
70 |
70 |
| NS/NSX -400L |
150 |
150 |
| NS/NSX -630N |
45 |
45 |
1000 |
4000 |
| NS/NSX -630H |
70 |
70 |
| NS/NSX -630L |
150 |
150 |
| NS/NSX -1250N |
3 pole |
50 |
37.5 |
1000 |
4000 |
| NS/NSX -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.
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 .
TM thermal release(from 16 to 250A)
STR22SE electronic release(from 40 to 250A)
STR223E electronic release(from 250 to 630A)
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 |
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
COMPANY PROFILE:
AN HUANG isa modern company of professional design and manufacturer of 3.6kV to 40.5kV Medium Voltage cable accessories, electric components and whole set cabinet Subsidiaries:Anhuang Electric Power Technology Co.,Ltd
Zhejiang Anhuang Imp & Exp. Co .. Ltd. We provide high quality, low cost products for utility systems worldwide
Company constantly introducing new technology,newcraft, the product structure constantly improved.Our Professional
production testing equipment.special production technology and professional service team can satisfy the customers demand.
Our professioal engineers,technicansand managers team always keep our promise:ANHUANG is not only provide cost-effective high quality products.but also provide high quality, efficient, fast service and technical support to ensure customers' require.
Our company obtained international quality management system ccertification for ISO9001,ISO1401,OHSAS18001.
Our company adhenring to the "safety electricity, forever brilliant " as our enterprise's humanism. Willing to work with you hand in hand to build better future
Audited Supplier 
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