Description
Product Highlight：
- Compliant with International Standards: The GYM9H-125DC MCB adheres to IEC/EN60947 and GB/T 14048.2 standards, ensuring exceptional reliability and safety for global applications.
- Versatile Configuration Options: Available in configurations ranging from 1P to 4P, with voltage support from 250VDC to 1000VDC and current ratings from 63A to 125A, this product adapts seamlessly to a wide variety of DC system needs.
- High Breaking Capacity and Precise Tripping: With a 6000A short-circuit breaking capacity and three tripping curves (B, C, D), it delivers precise and reliable protection tailored to different load types.
- User-Friendly Design: Equipped with a contact position indicator, support for up to 35mm² wiring capacity, and temperature compensation, it simplifies both installation and maintenance processes.
Performance Characteristic：
| Test | Test Current | Initial Condition | Limits of tripping or non-tripping time | Result to be obtained | Remarks | Fiducial temperature |
| B、C、D
|
1.05In | Cold | t≤1h（In≤63） | No Tripping | 30℃ | |
| 1.3In | Immediately following | t＜1h（In≤63） | Tripping | Current steadily increased within 5s | ||
| 2.55In | Cold | 1s＜t＜60s（In≤32A）
1s＜t＜120s（In＞32A） |
Tripping | |||
| B | 4.8In | Cold | t≤0.1s | No Tripping | ||
| C | 6.8In | |||||
| D | 9.6In | |||||
| B | 7.2In | Cold | t＜0.1s | Tripping | ||
| C | 10.2In | |||||
| D | 14.4In |
Temperature Compensation：
When the ambient temperature is not the baseline temperature of 30 , the reference ℃
correction coefficient is as follows：
| Ambient Temperature | -20℃ | -10℃ | 0℃ | 10℃ | 20℃ | 30℃ | 40℃ | 50℃ | 60℃ |
| Current Correction Factor | 1.25 | 1.2 | 1.15 | 1.10 | 1.05 | 1.00 | 0.95 | 0.90 | 0.85 |
Wiring Diagram:
Outline Overall and Installing Dimensions:
