4.5ka MCB 1-63A Electric AC DC MCB SKD Types Miniature Circuit Breakers

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Manual Type
• Model NO.: LRM3-63
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: Fixed
• Structure: MCB
• Poles Number: 1,2,3,4
• Type: Circuit Breaker
• Function: Overcurrent Protection, Overload, Short-Circuit Protection
• Certification: ISO9001-2000, CE, CB, CCC
• Rated Current(a): 1,2,3,4,6,10,16,20,25,32,40,50,63
• Rated Frequency: 50/60Hz
• Rated Voltage: 230/400V AC
• Rated Short-Circuit Making Capaity: 4500A
• Transport Package: 240 Poles/Carton
• Specification: IEC60898
• Trademark: OEM/LONGROAD
• Origin: China
• Production Capacity: 1000, 000 Poles/Month
• Package Size: 42.50cm * 23.00cm * 33.50cm
• Package Gross Weight: 24.000kg

Product Description

1.General
1.1 Function

LRM3-63 circuit-breakers are used in domestic installation as well as in commercial and industry electrical distribution systems.
Protection of circuits against short-circuit currents, overload currents, ON/OFF, isolation.
1.2 Selection
Tripping curves:
B curve (3-5In)
protection for people and big length cables in TN and IT systems.
C curve (5-10In)
protection for resistive and inductive loads with low inrush current.
D curve(10-14In)
protection for circuits which supply loads with high inrush current at the circuit closing
(LV/LV transformers, breakdown lamps).
2. Technical parameter:
 

Standard		IEC/EN 60898-1,IEC60947-2
Rated current In	A	1, 2, 3, 4, 6,10,16,20,25,32, 40, 50, 63
Poles		1P, 1P+N,2P,3P,3P+N, 4P
Rated voltage Ue	V	230/400~240/415
Insulation voltage Ui	V	500
Rated frequency		50/60Hz
Rated breaking capacity	A	4500
Energy limiting class		3
Rated impulse withstand voltage(1.2/50) Uimp	V	6000
Dielectric test voltage at ind. Freq. for 1 min	kV	2
Pollution degree		2
Power loss per pole		Rated current (A)				Max power loss per pole (W)
		1, 2, 3, 4, 5, 6, 10				2
		13, 16, 20, 25, 32				3.5
		40, 50, 63				5
Thermo-magnetic release characteristic		B, C, D
Electrical life		4, 000
Mechanical life		20, 000
Contact position indicator		Yes
Protection degree	ºC ºC	IP20 30 -5...+40(Special application please refer to P14 for temperature compensation correction)
Reference temperature for setting
of thermal element
Ambient temperature (with
daily average≤35ºC)
Storage temperation	ºC	-25...+70
Terminal connection type		lug type
Terminal size top/bottom for cable	mm2	25
	AWG	18-4
Tightening torque	N·m	2.5
	In-Ibs.	22
Mounting		On DIN rail EN 60715 (35mm) by means of fast clip device
Connection		From top and bottom
Auxiliary contact		Yes
Shunt release		Yes
Under voltage release		Yes
Alarm contant		Yes

Detailed Photos