Bộ cầu chì nhỏ PXB9N-32 có chức năng cách ly
Phần PXB9N-32 miniature circuit breaker provides overload and short-circuit protection within its published 6A–32A range. Selection should be based on the circuit voltage, conductor, load behaviour, prospective fault current and applicable installation rules—not the ampere rating alone.
Giới thiệu sản phẩm
PXB9N-32 is a miniature circuit breaker for 230V AC final-distribution circuits. The verified product range covers 6A–32A, 1P+N, B / C / D curves and 6kA (Icn/Ics) short-circuit data.
The 1P+N miniature circuit breaker format makes the PXB9N-32 MCB a compact 32A MCB option for single-phase distribution projects.
The saved model record lists EN/IEC 60898-1; GB/T 10963.1 as the applicable standard reference. No certification claim is added beyond the saved model record.
Tính năng chính
Các ứng dụng điển hình
Typical project contexts include residential, commercial and light-industrial final distribution. Suitability depends on the actual load and circuit study: conductor ampacity, inrush current, fault level, pole and neutral requirements, enclosure conditions and local rules.
Hướng dẫn đăng ký và tuyển chọn
Use the verified model values below to create a shortlist, then validate the complete circuit. Product ratings do not replace conductor calculations, a fault-current study, coordination review or local installation requirements.
| Điểm lựa chọn | PXB9N-32 reference | Những gì dự án phải xác nhận |
|---|---|---|
| Độ dòng định mức | 6A–32A | Design current, conductor ampacity, installation method, ambient temperature and grouping |
| Voltage and frequency | 230V AC; 50/60Hz | Supply system and equipment rating |
| Cấu hình cực | 1P+N | Conductors to be switched/protected, including neutral treatment |
| Đường cong chuyến đi | B/C/D | Load inrush and required disconnection performance |
| Khả năng phá vỡ | 6kA (Icn/Ics) | Prospective short-circuit current and protection coordination |
6kA vs 10kA
6kA (Icn/Ics) is the saved model value. Confirm the prospective short-circuit current at the installation point.
Mức độ lỗi
So sánh khả năng chịu lực phá vỡ →
B vs C vs D Curves
Available curves: B / C / D. Match the curve to normal load current, inrush and required fault clearing.
Đầu vào tải
Choose a Trip Curve →
1P+N vs 2P
Published pole options: 1P+N. Confirm which conductors must be switched and protected under local rules.
Poles & Neutral
Compare Pole Arrangements →
MCB vs RCBO
An MCB covers overload and short circuit; choose an RCBO where residual-current protection is also required.
Phạm vi bảo vệ
So sánh MCB và RCBO →
Hướng dẫn đặt hàng
- Specify the exact model: PXB9N-32.
- State the required current rating within 6A–32A.
- Confirm pole arrangement: 1P+N.
- Confirm trip curve: B / C / D.
- Provide system voltage, expected fault level, destination market, quantity and document requirements.
Kiểm tra lắp đặt và phối hợp
- Use the exact model drawing and instructions; do not infer supply direction, neutral routing or terminal positions from another product.
- Verify conductor material and cross-section against the circuit calculation and published terminal data.
- Confirm fault level, upstream/downstream coordination, enclosure temperature, grouping, altitude and clearances.
- Việc lắp đặt, cách ly, thử nghiệm và bảo trì phải được thực hiện bởi nhân viên có trình độ chuyên môn theo quy định hiện hành.
Tên loại
Các đường cong khi va chạm
Kích thước
Đặc điểm kỹ thuật
| Tham số | |
| Điện áp định mức | 230V~ |
| Rated impulse withstand voltage (Uimp) | 4000 V |
| Độ dòng định mức | 6A, 10A, 13A, 16A, 20A, 25A, 32A |
| Rated frequency | 50 Hz / 60 Hz |
| Number of poles | 1P+N |
| Rated breaking capacity (Icn/Ics) | 6000 A |
| Mechanical life | 10,000 operations |
| Electrical life | 4,000 operations |
| Tripping characteristics | B, C, D |
| Pollution degree | 2 |
| Degree of protection | IP20 |
| Standards | EN/IEC 60898-1, GB/T 10963.1 |
| Tightening torque | 2N∙m |
Table1 Tripping characteristics (Reference temp.30℃)
| Item | Tripping Curve | Test current In(A) | Initial Status | Time limit for tripping or non-tripping | Expected result | Remark |
| a | B、C、D | 1.13In | Cold | t≤1h | Non-tripping | Current smoothly rises to specified value within 5s |
| b | B、C、D | 1.45In | Following item a test | t<1h | Tripping | |
| c | B、C、D | 2.55In | Cold | 1s<t<60s(In≤32A) | Tripping | |
| d | B | 3In | Cold | t≤0.1s | Non-tripping | Switch on the power supply by closing the auxiliary switch |
| C | 5In | |||||
| D | 10In | |||||
| e | B | 5In | Cold | t<0.1s | Tripping | Switch on the power supply by closing the auxiliary switch |
| C | 10In | |||||
| D | 20In |
Note: The term “cold” means that the test is carried out at a reference calibration temperature without load before the test.
Conductor requirements and cross section
| 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 |
Tại sao nên chọn CHAC
With 30+ years of manufacturing experience, 1100+ employees, 100M+ poles
annual capacity and 90% automated production, CHAC provides stable production capacity and strict
quality control for global OEM/ODM customers. Our in-house manufacturing system supports long-term
cooperation for electrical brands, importers and distributors.
30+
NĂM KINH NGHIỆM
Chuyên sản xuất thiết bị điện hạ thế
1100+
CÔNG NHÂN
Đội ngũ chuyên nghiệp đảm bảo chất lượng và giao hàng ổn định
100 triệu người
Sức chứa hàng năm của các cột
Năng lực sản xuất quy mô lớn để đáp ứng nhu cầu toàn cầu
90%
SẢN XUẤT TỰ ĐỘNG
Tự động hóa nâng cao cho hiệu quả cao và tính nhất quán
Dây chuyền lắp ráp tự động
Phòng thí nghiệm kiểm nghiệm
Xay và dập
Kiểm tra chất lượng
Strict quality control system ensures every product meets global standards.
Chúng tôi có thể tùy chỉnh những gì?
For PXB9N-32 projects, CHAC can review private-label marking, packaging, approved appearance options, published 6A–32A electrical configurations and technical-document requirements. Requests outside the published range are subject to engineering evaluation, testing, minimum order quantity and project feasibility.
Logo & Thương hiệu
Private-label marking and nameplate options are subject to artwork review and sample approval.
Gói bao bì
Tùy chỉnh
Cartons, labels and manuals can be prepared for the approved order specification and destination market.
Điện
Tùy chỉnh
Select from the published 6A–32A, 1P+N and B / C / D options; non-standard requests require technical evaluation.
Sản phẩm
Vẻ ngoài
Appearance options can be reviewed subject to tooling, minimum order quantity, marking requirements and technical feasibility.
Chứng nhận
Hỗ trợ
Datasheets, drawings and verified certificate information are supplied for the applicable approved configuration.
Kỹ thuật
Phát triển
Project support may include drawing review, sample evaluation, testing and production planning, subject to technical approval.
Tải xuống
Bộ ngắt mạch nhỏ dạng PXB9
Complete product overview for low-voltage electrical components and product selection reference.
Cần tài liệu kỹ thuật?
Contact us for datasheets, certificates, drawings, selection guidance or OEM/ODM project support.
PXB9N-32 Product FAQ
What is the PXB9N-32 miniature circuit breaker?
The PXB9N-32 is a miniature circuit breaker that provides overload and short-circuit protection in the published 6A–32A range. It does not add residual-current protection; use a separate RCD or a suitable RCBO when that function is required.
How does the PXB9N-32 miniature circuit breaker work?
A thermal element responds to sustained overloads and a magnetic element responds to high fault current. Actual tripping behaviour depends on current magnitude, selected curve, reference conditions and the complete circuit.
What does the PXB9N-32 6kA rating mean?
The saved product data lists 6kA (Icn/Ics). This is short-circuit breaking data, not the normal load current. The prospective short-circuit current at the installation point must not exceed the applicable rating.
Which trip curve should be selected for the PXB9N-32?
The published options are B / C / D. Selection should reflect normal current, starting or inrush current and the fault current available for timely operation; no curve is automatically best for every load.
How should the PXB9N-32 pole configuration be selected?
Available arrangements are 1P+N. Confirm the supply system and which live conductors—and, where required, the neutral—must be switched, protected and isolated together.
How should the PXB9N-32 miniature circuit breaker be installed?
Use the exact product drawing and instructions. A qualified installer should verify voltage, conductor size, terminal torque, fault level, panel fit, enclosure conditions and coordination before energising the circuit.
Confirm the Right PXB9N-32 Configuration
Send the current rating, poles, trip curve, system voltage, expected fault level, destination market and quantity. CHAC will review the request against the published model range.
