Description
The protection level of DC circuit breaker is IP20. Electrical circuit breaker is available for installation in standard busbars.
Features
- Extremely high breaking capacity and current limiting characteristics.
- Available for installation in standard busbars.
- Dual function terminals on top and bottom sides (lifting type / open type).
- Optionally fixed to the bus bar on the top or bottom side.
- With isolation function, can be used as the main switch.
- Wiring terminal guidance to prevent mis-wiring.
Specifications
| Electrical Parameter | Model | ATO-FXBN1/BM1-225A |
| Current | 225A | |
| Rated Voltage | DC 250V, 500V, 750V, 1000V | |
| Current Shell Frame | 250A | |
| Numbers of Pole | 1 pole, 2 pole, 3 pole, 4 pole | |
| Breaking Capacity | 25 KA | |
| Rated Insulation Voltage | 1000V | |
| Rated Impulse Withstand Voltage | 8 kV | |
| Total Break Time | 20 ms | |
| Installation Location | any location | |
| Allowable Ambient Temperature | -25 ℃ ~ 50 ℃ | |
| Protection Level | IP20 | |
| Flying Arc Distance | ≥50 mm | |
| Instantaneous Action Valve | 12 ln | |
| Installation Method | fixed, insertion type | |
| Standard | IEC60947-2x IEC60947-K GB14048.R GB14048.2 | |
| Machinery Parameter | Mounting Method | IEC standard track 35 mm |
| Enclosure Protection Level | IP20 | |
| Dual Function Terminals on Both Sides | open type / lifting type | |
| Terminal Protection | finger touch and hand touch safety | |
| Terminal Wiring Capacity | 1-25 mm² | |
| Termianal Screw Tightening Torque | 2-2.4 Nm | |
| Bus Bar Thickness | 0.8-2 mm | |
| Mounting Angle | functionaity is independent of location |
Dimension (Unit: mm)
Note: If you need copper busbar parts, please contact us.
Wiring Diagram
Details
Tips: Operating Conditions of DC Circuit Breaker
- The installation site is not more than 2000m above sea level.
- Ambient air temperature shall not be higher than +40℃ or lower than -5 ℃. And the 24 hour average value does not exceed +35 ℃.
- A place in the air where there is no explosive hazardous medium and no gas or conductive dust sufficient to corrode metal and destroy insulation.






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