Cost-Effective High-Speed with Low Voltage Mould Mccb

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Manual Type
• Model NO.: LRM1
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: Fixed
• Structure: MCCB
• Poles Number: 3, 4
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Overcurrent Protection
• Certification: ISO9001-2000, CE, CB
• Model: Lrm1
• Number of Poles: 3p, 4p
• Current Value: 63A~1600A
• Rated Operating Voltage(V): 400V
• Transport Package: Carton
• Specification: IEC60947-2
• Trademark: Long Road/OEM
• Origin: China
• Production Capacity: 100, 000 Pieces/Month

Product Description

1. Application
LRM1 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)

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
LR1-63L	(6),10 16,20 25 ,32 40,50 63	3, 4	500V	400V	0	25	18	1500	8500	A
LRM1-63M					0	50	35
LRM1-100L	(10),16 20,25 32,40 50,63 80,100		800V		0(≤50)	35	22
LRM1-100M					0(≤50)	50	35
LRM1-100H					0(≤50)	85	50	1000	7000
LRM1-225L	100,125 160,180 200,225				≤50	35	22
LRM1-225M					≤50	50	35
LRM1-225H					≤50	85	50	1000	4000
LRM1-400L	225,250 315,350 400				≤50	50	35
LRM1-400M					≤100	65	42
LRM1-630L	400,500 630				≤100	50	35
LRM1-630M					≤100	65	42
LRM1-630H					≤100	100	65
LRM1-800M	630,700 800	3			≤100	75	50
LRM1-800H					≤100	100	65
LRM1-1250M	1000,1250				≤100	100	65
LRM1-1250H					≤100	125	75
LRM1-1600M	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
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)	Thermodynamic release( ambient 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