CQB2LE series Electronic Leakage Circuit Breaker

Product Overview

The CQB2LE series residual current operated circuit breaker is meticulously designed by CHAC Electric to meet the customization requirements of international clients in the low-voltage electrical sector. As a proficient contract manufacturer with extensive export expertise, we are dedicated to delivering high-quality and reliable products.

 

Our CQB2LE series stands out due to advanced technology and strict quality control. We utilize cutting-edge production equipment and adhere to strict quality inspection standards to ensure each unit meets the highest performance levels. Our commitment to innovation and precision ensures that these circuit breakers operate efficiently and reliably, even under demanding electrical conditions. This makes them an ideal choice for customers seeking robust and durable electrical protection solutions in diverse distribution applications. Moreover, as a professional customization service provider, we understand the unique needs of our international clients. We offer flexible customization options, from product design and specifications to packaging and branding, enabling our clients to tailor the products to their specific market requirements. Our efficient production processes and stringent quality management systems guarantee timely delivery of premium-quality products, helping our clients stay ahead in the competitive global market.

Overview and applications

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

CQB2LE-40/63

1.Overload & short circuit protection

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

3.Protect installations against fire hazard due to insulation faults.

4.Control electric circuits

CQB2LE-125

Rated current

1.Up to 125A

2.Higher reliability by high operating durability

3.Various connections

4.Overload & short circuit protection

5.For fault current/residual current protection and additional protection

6.Auxiliary switches available

Technical data

CQB2LE-32 electronic leakage circuit breaker

Technical parameter project	Parameter Value
Rated voltage(V)	230V~(2P, 1P+N)/400V~(3P, 4P, 3P+N)
Rated current(A)	6, 10, 16, 20, 25, 32
Number of poles	1P+N, 2P, 3P, 3P+N, 4P
Rated short-circuit breaking capacity lcs(A)	6000A
Rated residual operating current l△n(mA)	30, 50, 100, 300
Rated residual non-operating current l△no(mA)	0.5l△n
Rated residual making and breaking capacity l△m(A)	2000A
Residual current action breaking time	≤0.1s
Mechanical and electrical life (times)	4000
Instantaneous trip type	B, C, D
Pollution degree	Level 2
Protection level	Ip20
Installation Category	III
Comply with standards	IEC61009-1,GB/T16917.1
Certification	CCC

CQB2LE-40 Residual Current Operated Circuit Breaker with Over-current Protection (Electronic)

Specifications
Rated voltage(V)	230V~
Rated current(A)	6、10、16、20、25、32、40
Frequency	50Hz/60Hz
Pole	1P+N
Rated residual operating current l△n	30 mA
Rated non-tripping current	15 mA
Rated breaking capacity lcu(A)	4500A
Rated residual making & breaking capacity (A)	500A
Tripping time	≤0.1s
Mechanical & Electrical life	10000
Tripping characteristics	B、C、D
Pollution degree	2
Protection degree	IP20
Standards	IEC61009-1, GB/T16917.1
Compliant certification	CCC

CQB2LE-63 Residual Current Operated Circuit Breaker with Over-current Protection (Electronic)

Specifications
Rated voltage (V)	230V~(2P、1P+N)/400V~(3P、4P、3P、3P+N)
Rated current(A)	6、10、16、20、25、32、40、50、63
Poles	2P、3P、4P、1P+N、3P+N
Rated breaking capacity Icn=lcs(A)	6000A
Rated sensitivity (mA)	30、50、100、300
Rated non-operating current(mA)	0.5l△n
Rated residual making and breaking capacity	2000A
Tripping time	≤0.1s
Mechanical & Electrical life	4000
Tripping curves	B、C、D
Protection degree	2
Protection class	Ip20
Overvoltage category	Ⅲ
Standards	IEC61009-1,GB/T16917.1
Compliant certification	CCC

CQB2LE-125 Residual Current Operated Circuit Breaker with over-current Protection (Electronic)

Specifications
Rated voltage(V)	230V~(1P+N/2P)、400V~ (3P/3P+N/4P)
Rated current(A)	63、80、100、125
Poles	1P+N、2P、3P、3P+N、4P
Rated breaking capacity lcu(A)	10000A、6000A(Lower type)
Rated sensitivity I△n	30mA、50 mA、75 mA、100 mA、300 mA
Mechanical & Electrical life	Mechanical ≥ 8500, Electrical ≥ 1500
Tripping curves	C、D
Tightening torque (N·m)	3.5
Pollution degree	2
Protection degree	IP20
Overvoltage category	Ⅲ
Tripping characteristics	Table 1
Standards	IEC60947-2, GB/T14048.2
Compliant certification	CCC

Table1 Tripping characteristics (Reference temp.30°C)

CQB2LE-32/40/63

Item	Ratedcurrent(A)	Initial Status	Test current In(A)	Time limit for tripping or non-tripping	Expected result	Remark
Delay	≤63/40	Cold	1.13In	≤1h	Non-tripping
Delay	≤63/40	Following previous test	1.45In	<1h	Tripping	Current smoothly rises to specified value in 5s
Delay	≤32	Cold	2.55In	1<t<60s	Tripping
Delay	﹥32/40	Cold	2.55In	1<t<120s	Tripping
Instantaneous	Any value	Cold	3、5、10In	≤0.1s	Non-tripping	B、C、D
Instantaneous	Any value	Cold	5、10、20In	<0.1s	Tripping	B、C、D

CQB2LE-125

Item	Tripping Curve	Test current In(A)	Initial Status	Time limit for tripping or non-tripping	Expected result	Remark
a	C、D	1.05In	Cold	1h(ln≤63A) 2h(ln>63A)	Non-tripping	Current smoothly rises to specified value within 5s
b	C、D	1.3ln	Following item a test	1h(ln≤63A) 2h(ln>63A)	Tripping
C	C、D	2ln	Cold	1s<t<300s	Tripping
d	C	8ln×80%	Cold	t≤0.2s	Non-tripping	Switch on the power supply by closing the auxiliary switch
	D	12ln×80%
e	C	8ln×120%	Cold	t<0.1s	Tripping	Switch on the power supply by closing the auxiliary switch
	D	12ln×120%

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

Tripping curves

CQB2LE-32

CQB2LE-40

CQB2LE-63

CQB2LE-125

Conductor requirements and cross section

CQB2LE-32

Copper cross-section(mm²)	Rated current In(A)
1	In≤6
1.5	6 In≤13
2.5	13 In≤20
4	20 In≤25
6	25 In≤32

CQB2LE-40

Copper cross-section(mm²)	Rated current In(A)
1	In≤6
1.5	6 In≤13
2.5	13 In≤20
4	20 In≤25
6	25 In≤32
10	32 In≤40

CQB2LE-63

Copper cross-section(mm²)	Rated current In(A)
1	In≤6
1.5	6 In≤13
2.5	13 In≤20
4	20 In≤25
6	25 In≤32
10	32 In≤50
16	50 In≤63

CQB2LE-125

Copper cross-section(mm²)	Rated current In(A)
16	63A
25	80A
35	100A
50	125A

Dimensions(unit:mm)

CQB2LE-32

Number of poles	L
1P+N	44.8
2P	62.6
3P	89.4
3P+N	98.4
4P	116.2

CQB2LE-40

CQB2LE-63

Poles	L
1P+N	53.4
2P	71.2
3P	102.4
3P+N	115.8
4P	133.6

CQB2LE-125

Order Specifications

CQB2LE-32/63

1.When ordering circuit breakers, the following points should be specified:

A) Product models, such as CQB2LE-32/63;

B) Poles of circuit breakers, such as 1P+N、2P、3P、3P+N、4P;

C) Types of instantaneous tripping, such astype B/C/D;

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

E) Order quantity, such as 100pcs

2.Purchase order template

CQB2LE-63 2P C/16A 100pcs

CQB2LE-40/125

1.When ordering circuit breakers,the following points should be specified:

A) Product models, such as CQB2LE-40/125;

B) Poles of circuit breakers, such as 1P+N、2P、3P、3P+N、4P;

C) Types of instantaneous tripping,such astype B/C/D;

D) Rated current of circuit breakers, such as 16A、20A、25A、63A、80A、100A、125A;

E) Residual current,e.g.30mA、50mA、75mA、100mA、300mA

F) Order quantity, such as 100pcs

2.Purchase order template

CQB2LE-125 2P 30mA C/100A 100pcs