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CQB5aL-63 4.5kA Residual Current Operated Circuit Breaker with Over-current Protection

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Zhejiang Chuangqi Electric Co., Ltd.

Wenzhou,Zhejiang,China

CCCME Member

Recommended by CCCME

Product Details
Company Profile

·Overload protection ·Short circuit protection ·Protect people against indirect contacts and additional protection against direct contacts. ·Protect installations against fire hazard due to insulation faults. ·High-quality residual current device ·Wide variety of rated tripping currents Suitable for industrial, commercial, high-rise and civil residences circuit protection.

1 Overview and applications

·Overload protection

·Short circuit protection

·Protect people against indirect contacts and additional protection against direct contacts.

·Protect installations against fire hazard due to insulation faults.

·High-quality residual current device

·Wide variety of rated tripping currents

Suitable for industrial, commercial, high-rise and civil residences circuit protection.

2. Type designation

3 Technical data

Specifications
Rated voltage (V) :	230V~/400~
Rated current (A)	10、16、20、25、32、40、50、63
Rated sensitivity lrn (mA)	30、50、100
Rated residual non-operating current	0.5 lrn
Poles	1P+N、2P、3P+N、4P
Rated breaking capacity lcu(A)	4500
Rated residual making and breaking capacity lr m	2000A
Tripping characteristic	Table 2
Mechanical &Electrical life	Mechanical ≥ 4000 ；Electrical≥ 2000
Pollution degree	2
Protection class	IP20
Overvoltage category	Ⅲ
Standards	IEC61009-1、GB/T16917.1
Compliant certification	CCC

Table 2 Tripping characteristics

Rated current(A) Test current Initial status Tripping time Expected result Remarks
≤63	1.13In	Cold	t≤1h	Non-tripping
≤63	1.45In	Following previous test	t＜1h	tripping	Current smoothly rises to specified value in 5s
≤63	2.55In	Cold	1s＜t＜60s(In≤32A) 1s＜t＜120s(In＞32A)	tripping
≤63	3In	Cold	t≤0.1s	Non-tripping	B
	5In		t＜0.1s	tripping	B
	5In		t≤0.1s	Non-tripping	C
	10In		t＜0.1s	tripping	C
	10In		t≤0.1s	Non-tripping	D
	20In		t＜0.1s	tripping	D

Note: The status "cold " means that the test is carried out at a reference calibration temperature without load before the test.

4 Order Specifications
·When ordering circuit breakers, the following points should be specified:

A) Product models, such as CQB5aL-63;

B) Poles of circuit breakers, such as (1P+N);

C) Rated current of circuit breakers, such as 16A、20A、25A;

D) Rated residual operating current, such as 30mA;

E) Order quantity, such as 100 pcs

·Purchase order template

CQB5aL-63 1P+N C/16A 30mA 100pcs

5 Conductor requirements and cross-sectional area

Rated current （A）	Nominal cross-sectional area（mm2）
≤10	1.5
16~20	2.5
25	4
32	6
40~50	10
63	16

6.Dimensions and installation sizes (mm)

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Zhejiang Chuangqi Electric Co., Ltd.

CCCME Member

Recommended by CCCME

Location:Wenzhou,Zhejiang,China
Business Type:Manufacturer
Main Products:Electronic Apparatus,Hardware and Tool,Mould

Wenzhou Luogelang Electrical Equipment Co.,Ltd was founded in 1995.In hte year of 1998,absorbing foreign capital,established Joint Venture Wenzhou Luogelang Electric Equipment Co.,Ltd. The company is situated in Wenzhou Bei Baixiang Industrial Zone,close to the national road 104,only 20 km away from Wenzhou Airport.It takes 20 minutes to Longwan Port and QiLi Gang Port,good location and convenient for highway,airway and waterway transportation. Since the beginning of its founding,the company has set forth the aim:Quality first,development,producdtion and marketing.By introducing and absorbing the advanced foreign technology and equipment,the company now has become a specialized manufacturer of low-voltage electrical appliances and teh leading company among teh manufactures. The main products of the company:electromagnetic and electronic residual current operated circuit breakers;LEB47(DZ47-63)series,LEB65 series and LEB47B(NC-100)series miniature circuit breaker;modular distribution boxes,current transformers,AC contactors,wall switches,plugs and sockets and others. The products of the company have been granted "CCC" and "CE" certificates and the company has passed ISO9001. Ninety percent of the products have been exported to more than 20 countries and areas such as Russia,UK,Greece,Egypt,the Netherlands,Southeast Asia,Middle East and South America,etc.and LEGEND brand has won a good reputation from the clients. The company and its people will always pursue the aim at safety and reliability,meeting the needs of teh customers and making a contribution to the peace and happiness of the mankind

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