...

ZQB1 High breaking miniature circuit breaker

• ZQB1 series high breaking miniature circuit breaker is applicable to lines with AC 50/60HZ, rated voltage 230/400V and rated current up to 63A for overload, short circuit and personal safety and equipment leakage protection.
• In addition, the electronic circuit design is advanced, the unique filtering device and chip mounting process, and the high anti-interference performance can effectively prevent the misoperation caused by the instantaneous voltage change and surge current. The circuit breaker is applicable to industrial, commercial, high-rise and civil buildings and similar places, and can also be used for infrequent on-off operations. Suitable for non-professional personnel.

Product overview

• ZQB1 series high breaking miniature circuit breaker is applicable to lines with AC 50/60HZ, rated voltage 230/400V and rated current up to 63A for overload, short circuit and personal safety and equipment leakage protection.
• In addition, the electronic circuit design is advanced, the unique filtering device and chip mounting process, and the high anti-interference performance can effectively prevent the misoperation caused by the instantaneous voltage change and surge current. The circuit breaker is applicable to industrial, commercial, high-rise and civil buildings and similar places, and can also be used for infrequent on-off operations. Suitable for non-professional personnel.
• External accessories: alarm, auxiliary, shunt+auxiliary, undervoltage and overvoltage.
• Product function: overload and short circuit protection.
• Product use: for power distribution and lighting, and for motor protection.

• Number of product poles: 1,2,3,4.
• Breaking capacity: 6000A.
• Product current: 1, 3,6, 10,16, 20,25,32,40, 50,63A.
• Executive standards: IEC 60898-1,IEC 1259-1, GB/T10963.1GB/T16917.1.

Model and its meaning

ZQ B 1 – 63 / C 16 / 2P

ZQ -Name of the company
B -Product model
1 -Design serial number
63 -Shell frame grade current
C -Tripping characteristic
16 -Operating current (optional)
2P -Number of poles

 

Technical parameters

Rated current of shell frame grade Inm(A) Number of poles Rated voltage (V) Rated voltage (V) Rated current (A) Rated operating short circuit breaking capability Ics Rated limit short circuit breaking capacity Icu
Breaking current(A) COSφ Breaking current(A) COSφ
63 1 50 or 60 230、400 1.3
6.10
16.20
25.32
4.50
63
6000 0.7 6000 0.7
2 230、400
3 400
4 400

 

Serial number Test current Initial state Tripping or non-tripping time limit Expectec result Remarks
a 1.13In Cold state* t≥1h (≤ 63A) No tripping
b 1.45In Right after test A t<1h (≤ 63A) Tripping The current rises steadily to the specified value within 5s.
C 2.55In Cold state* 1s<t<60s (In ≤ 32A) Tripping
1s<t<120s (In > 32A)
d 3In Cold state * t≥0.1s Tripping B
5In C
10In D
e 5In Cold state* t<0.1s Tripping B
10In C
15In D