Factory Price Circuit Breaker 1p 2p 3p 4p Mini MCB 20A 16A 10A 32A 25A 40A 63A AC MCB Electric Miniature Circuit Breaker

• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Electric Type
• Speed: High-Speed Circuit Breaker
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: LRM7-63
• Arc-extinguishing Medium: Air
• Installation: Fixed
• Structure: MCB
• Poles Number: 1,2,3,4
• Type: Circuit Breaker
• Function: Circuit-Breaker Failure Protection, Overcurrent Protection, Short-Circuit Protection, Overload Protection
• Certification: ISO9001-2000, CE, CB, CCC
• Model: Lrm7-63
• Rated Voltage(V): 230/400 VAC
• Rated Frequency: 50/60Hz
• Number of Poles: 1p. 2p, 3p, 4p
• Transport Package: 60 PCS/Carton
• Specification: IEC60898-1/IEC60947-2
• Trademark: Long Road/OEM
• Origin: China
• Production Capacity: 50000 Poles/Month
• Package Size: 8.58cm * 7.12cm * 7.51cm
• Package Gross Weight: 0.040kg

Product Description

1. General

1.1 Function
The LRM7-63 circuit-breakers are used in domestic installation as well as in commercial and industry electrical distribution systems, protection of circuits against short-circuit currents and 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(10-20In) :protection for circuits which supply loads with high inrush current at the circuit closing (LV/LV transformers, breakdown lamps)

2. Technical data:

Electrical PARAMETERS	No. Of Poles	1P, 2P, 3P, 4P
	Rated Current (In):(A)	6A,10A,16A,20A,25A,32A,40A,50A,63A
	Rated voltage(Un):(V)	220V~/230V~/240V~1P, 380V~/400V~/415V ~ (2P,3P,4P)
	Rated frequency:(Hz)	50/60Hz
	Rated Insulation voltage Ui:(V)	500V
	Rated impulse withstand voltage(1.2/50us)Uimp:(V)	6000V
	Rated short-circuit capacity Icn:(A)	6000A
	Energy limiting class	3
	Instaneous Tripping current:	B Type(3In~5In) C Type(5In~10In) D Type(10In~20In)
	Grid distance(short-circuit tests)	45mm
	Electrical life	4,000 Nos of operating cycles at rated current
Mechanical PARAMETERS	Protection Degree	IP20
	Material group	IIIa
	Protection against extemal influences:	Enclosed
	Contact position indication	Red/Green
	Mechanical life	20,000 Nos of operating cycles at rated current
	Contact position indicator	Yes
	Reference ambient calibration air temperature	30ºC
Installation	Method of mounting	On symmetrical Din rail 35mm
	Terminal connection type	Screw terminal,Cable/U-type busbar/Pin-type busbar
	Terminal size top/bottom for cable	25mm²
		18-4AWG
	Terminal size top/bottom for busbar	10mm²
		18-8AWG
	Tightening torque	2.5N.m
	Mounting	On DIN rail EN 60715 (35mm) by means of fast big clip device
	Operating means	Lever
	Connection	From top and bottom

3.Overall & Installation Dimensions