High Breaking Capacity Magnetic Moulded Case Circuit Breaker MCCB Ah-3431

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: AH-3431
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: MCCB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
• Certification: ISO9001-2000
• OEM or ODM: Acceptable
• Transport Package: Carton
• Specification: As standard drawing
• Trademark: ANHUANG
• Origin: China
• HS Code: 8504329000
• Production Capacity: 10000

Product Description

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