PXB6-40 Miniature Circuit Breaker
Product Features
■ Enhanced Safety Design: Compact 1P+N configuration with simultaneous phase and neutral disconnection for improved maintenance safety.
■ Dual Electrical Protection: Integrated overload and short-circuit protection provides reliable circuit protection.
■ Reliable Isolation: Provides effective electrical isolation in the OFF position for safer maintenance.
■ Versatile Applications: Suitable for industrial, commercial, high-rise building, and residential electrical systems.
Ordering Specification
Please specify the following when ordering:
1.Product Model: PXB6-40
2.Number of Poles: 1P+N
3.Rated Current & Tripping Curve: [e.g., C/16A]
- Tripping Curve (Type): B, C, D
- Rated Current (In): 6, 10, 16, 20, 25, 32, 40A
5.Quantity: [e.g., 100 pcs]
Ordering Example:
PXB6-40 1P+N C/16A 100 pcs
Technical Specifications
| Parameter | |
| Rated Voltage (V) | 230/240V |
| Rated Insulation Voltage (Ui) | 400V |
| Rated Impulse Withstand Voltage (Uimp) | 4000V |
| Rated Current (In) | 6、10、16、20、25、32、40 |
| Rated Frequency | 50/60Hz |
| Number of Poles | 1P+N |
| Rated Short-Circuit Breaking Capacity (Icn = Ics) | 4500A |
| Mechanical Endurance | ≥10000 |
| Electrical Endurance | ≥4000 |
| Instantaneous Tripping Type | B、C、D |
| Grid Spacing | 50mm |
| Degree of Protection | IP 20 |
| Standards Compliance | IEC60898-1，GB/T 10963.1 |
| Certificazione | CE·CB·CCC | DEKRA Certified |
Tripping Characteristics (Reference Temperature: 30℃)
| Item | Tripping Curve | Test Current (A) | Initial Status | Time limit for tripping or non-tripping | Expected result | Remarks |
| a | B,C,D | 1.13ln | Cold | t ≤ 1h | Non-tripping | Current smoothly rises to specified value within 5s |
| b | B,C,D | 1.45ln | Following item a test | t < 1h | Tripping | |
| c | B,C,D | 2.55ln | Cold | 1s < t < 60s (ln ≤ 32A) | Tripping | |
| 1s < t < 120s (ln >32A) | ||||||
| d | B | 3ln | Cold | t ≤ 0.1s | Non-tripping | Switch on the power supply by closing the auxiliary switch |
| C | 5ln | |||||
| D | 10ln | |||||
| e | B | 5ln | Cold | t < 0.1s | Tripping | Switch on the power supply by closing the auxiliary switch |
| C | 10ln | |||||
| D | 20ln |
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 ln(A) |
| 1 | ln≤6 |
| 1.5 | 6 < ln≤13 |
| 2.5 | 13 < ln≤20 |
| 4 | 20 < ln≤25 |
| 6 | 25 < ln≤32 |
| 10 | 32 < ln≤40 |
Type designation
Tripping curves
Dimensions(mm)
