Máy cắt điện loại điện từ PXB9L-40
Phần PXB9L-40 RCBO Cung cấp khả năng bảo vệ quá tải, ngắn mạch và dòng điện còn lại trong phạm vi 6A–40A được công bố. Việc lựa chọn nên dựa trên điện áp mạch, dây dẫn, hành vi tải, dòng điện quá tải tiềm ẩn và các quy tắc lắp đặt áp dụng—không chỉ dựa trên chỉ số dòng điện.
Product Overview
PXB9L-40 is an RCBO for 230V AC distribution circuits. It combines thermal-magnetic overcurrent protection with residual-current protection in one device. The published range covers 6A–40A, 1P+N, B / C / D curves and 30mA sensitivity options. The saved model data describes the residual-current or construction type as Type AC / Type A; electromagnetic construction.
The PXB9L-40 is an electromagnetic RCBO and 40A RCBO breaker option for 230V single-phase distribution circuits.
The saved model record lists EN/IEC 61009-1; GB/T 16917.1 as the applicable standard reference. No certification claim is added beyond the saved model record.
Key Features
Typical Applications
Typical use is in final or sub-distribution circuits where both overcurrent and residual-current protection are required. The project must still confirm the expected residual-current waveform, sensitivity, neutral arrangement, pole configuration, fault level, conductor size, enclosure conditions and local wiring rules.
Applications and Selection Guide
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.
| Selection point | PXB9L-40 reference | What the project must confirm |
|---|---|---|
| Rated current | 6A–40A | Design current, conductor ampacity, installation method, ambient temperature and grouping |
| Voltage and frequency | 230V AC; 50Hz | Supply system and equipment rating |
| Cấu hình cực | 1P+N | Conductors to be switched/protected, including neutral treatment |
| Trip curve | B/C/D | Load inrush and required disconnection performance |
| Residual-current selection | 30mA; Type AC / Type A; electromagnetic construction | Expected waveform, sensitivity, purpose and local rules |
| Breaking capacity | 6kA (Icn/Ics) | Prospective short-circuit current and protection coordination |
Protection Scope
An RCBO combines overcurrent and residual-current protection; it is not simply an MCB with a different label.
MCB vs RCBO
Compare Protection Functions →
Residual-Current Selection
Published options: 30mA. Confirm sensitivity and waveform type for the actual circuit and market.
Sensitivity & Type
Review Selection Support →
Breaking Capacity and Curve
6kA (Icn/Ics); B / C / D curves. Both fault level and load inrush must be checked.
Fault Level & Inrush
Compare Breaking Capacity →
Pole and Wiring Arrangement
Published pole options: 1P+N. Use the exact model diagram; do not assume neutral routing.
Poles & Neutral
Confirm Wiring Data →
Ordering Guide
- Specify the exact model: PXB9L-40.
- State the required current rating within 6A–40A.
- Confirm pole arrangement: 1P+N.
- Confirm trip curve: B / C / D.
- Confirm residual-current sensitivity and type from the published 30mA options.
- Provide system voltage, expected fault level, destination market, quantity and document requirements.
Installation and Coordination Checks
- 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.
- Installation, isolation, testing and maintenance must be carried out by qualified personnel under applicable rules.
Type designation
Tripping curves
Kích thước
Technical Specifications
| Parameter | |
| Rated voltage | 230 V |
| Rated current | 6, 10, 13, 16, 20, 25, 32, 40 A |
| Rated frequency | 50 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 |
| Type of residual current | AC, A |
| Rated residual operating current (IΔn) | 30 mA |
| Rated residual making & breaking capacity (IΔm) | 500 A |
| Pollution degree | 2 |
| Degree of protection | IP20 |
| Standards | EN/IEC 61009-1, GB/T 16917.1 |
| Tightening torque | 3.5 N·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) 1s<t<120s(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 |
| 10 | 32<In≤40 |
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 PXB9L-40 projects, CHAC can review private-label marking, packaging, approved appearance options, published 6A–40A 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–40A, 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.
Need Technical Documents?
Contact us for datasheets, certificates, drawings, selection guidance or OEM/ODM project support.
PXB9L-40 Product FAQ
What is the PXB9L-40 RCBO?
The PXB9L-40 combines overload and short-circuit protection with residual-current protection. Its verified range is 6A–40A with 1P+N configurations; the exact ordered option must match the circuit and local rules.
How does the PXB9L-40 RCBO work?
A thermal-magnetic mechanism responds to overload and short-circuit conditions, while the residual-current function monitors imbalance between conductors and trips when the applicable threshold is reached. It does not remove the need for correct earthing, circuit design or testing.
How is the PXB9L-40 RCBO different from an MCB or RCCB?
An MCB provides overcurrent protection but not residual-current protection. An RCCB provides residual-current protection but normally needs separate overcurrent protection. The PXB9L-40 combines both functions in one product, within its published ratings.
Can the PXB9L-40 RCBO be used as a circuit breaker?
It can provide the overcurrent and residual-current functions stated for the model, but only when 230V AC, 6A–40A, 6kA (Icn/Ics) and the residual-current requirements all suit the circuit. It should not be treated as a universal replacement for every breaker.
What are the selection limitations of the PXB9L-40 RCBO?
The principal checks are residual-current sensitivity (30mA), residual-current or construction type (Type AC / Type A; electromagnetic construction), trip curve (B / C / D), pole arrangement (1P+N) and short-circuit data (6kA (Icn/Ics)). Board space, neutral handling, coordination and destination-market rules also have to be verified.
How should the PXB9L-40 RCBO be wired and tested?
Use only the diagram and terminal identification supplied for the exact ordered model. Confirm supply direction, protected neutral arrangement, conductor size, torque and isolation procedure, then perform the prescribed test-button and functional checks. Qualified personnel should complete the work under local rules.
Confirm the Right PXB9L-40 Configuration
Send the current rating, poles, trip curve, system voltage, expected fault level, destination market and quantity, plus residual-current sensitivity and type. CHAC will review the request against the published model range.
