Product introduction
In order to meet with user demand, we developed new generation MBD1-R series protector with built- in circuit breaking device, to limit surge current, overvoltage, over-current occurred in the power system due to some reasons, working in the system of AC 50Hz, rated voltage 380V and below to prevent surge voltage from damaging electric equipment.
Features
MBD1-R series protector has integrated short circuit protective function in its SPD module, fuse not needed again, it can be mounted on 35mm railway, compared with normal combination of fuse + SPD module, there has following advantages:
- Residual voltage reduce more than 50%, for normal combination, fuse body and connected conductor have inductance, and will result in residual voltage, but MBD1-R series almost has no residual voltage at this case, therefore it can get better result of protecting equipment.
- Easy installation, saving space, saving installation cost in cabinet.
- Quicker response speed, comprehensive performance being improved.
- Better N point: no matter which step of circuit, there has shortest distance for discharging surge current, residual voltage decrease more.
Model and Signification
Technical Parameter
| Model and specification | MBD1-RD10 | MBD1-RD20 | MBD1-RC40 | MBD1-RB60 | MBD1-RB80 |
| Rated working voltage Un(AC) | AC220V/AC380V | ||||
| Maxin continuous operating voltage | AC385V/AC420V | ||||
| Nominal discharging current In | 10 | 20 | 40 | 30 | 40 |
| Max discharging current Imax | 5 | 10 | 20 | 60 | 80 |
| Protective level Up (kV) | 1.0/1.2 | 1.2/1.5 | 1.5/1.8 | 1.8/2.0 | 2.0/2.5 |
| Pole combination | 1P, 2P, 3P, 4P, 1P+NPE, 3P+NPE | ||||
| Response time tA | ≤25ns | ||||
| Outline size mm (L*H*W) | 135*73*18n Pole number | ||||
| Protective grade | IP20 | ||||
| Indication of invalidation | Aging invalidation: white: Normal, red: invalidation Short circuit invalidation: red LED shining. | ||||
| Remote signaling function | Able to provide if required. | ||||
| Remark | Other maxi continuous working voltage Uc (AC) 175V 275V 320V, can be supplied if required. | ||||
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