GYM9H-125 DC Miniature Circuit Breaker
GYM9H-125 DC miniature circuit breaker is designed for overload, short circuit, and isolation protection in communication, photovoltaic, and other DC system applications. Manufactured in compliance with IEC/EN60947 and GB/T 14048.2 standards, it features a contact position indication function and supports a maximum wiring capacity of 35 mm²
◉ Multi-Function Protection: Provides reliable overload, short circuit, and isolation protection for DC systems.
◉ Standard Compliance: Built to IEC/EN60947 and GB/T 14048.2 standard specifications.
◉ Clear Status & Easy Wiring: Integrated contact position indicator with up to $35\text{ mm}^2$ large wiring capacity.
◉ Wide Versatility: Available in 1P, 2P, 3P, and 4P configurations with rated currents up to 125A.
Features
Functions and Applications
Overload, short circuit, isolation; Suitable for communication, photovoltaic and other DC system applications.
Product Feature
Standard：IEC/EN60947、GB/T 14048.2
Contact Position Indication Function
Maximum Wiring Capacity 35mm^2
Technical Specification
Rated Current（In）: 63、80、100、125
Rated Voltage（Ue）: 1P:250VDC;2P:500VDC;3P:750VDC;4P:1000VDC；
Working Frequency: 50/60Hz；
Tripping Curves: Ii=6In(B)，Ii=8.5In(C )，Ii=12In(D)
Rated ultimate shortcircuit breaking capacity(Icu): 6kA
Poles: 1P、2P、3P、4P
Mechanical Life: 10000 times
Rated impulse withstand voltage (Uimp): 4kV
Wiring Diagram
Outline Overall And Installing Dimensions
Specification
Temperature Compensation
| Ambient Temperature | -20°C | -10°C | 0°C | 10°C | 20°C | 30°C | 40°C | 50°C | 60°C |
| Current Correction Factor | 1.25 | 1.2 | 1.15 | 1.10 | 1.05 | 1.00 | 0.95 | 0.90 | 0.85 |
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)< td=””> |
Tripping | |||
| B | 4.8In | Cold | t≤0.1S | No tripping | ||
| C | 6.8In | Cold | ||||
| D | 9.6In | Cold | ||||
| B | 7.2In | Cold | t≤0.1S | Tripping | ||
| C | 10.2In | Cold | ||||
| D | 14.4In | Cold |
