CQB7R-125 10kA Miniature Circuit Breaker Reclosing
Inquire NowDescription
The CQB7R-125 Miniature Circuit Breaker (MCB) is ingeniously designed to integrate with Prepaid Meters, ensuring seamless power management for electricity users. When the pre-paid balance is depleted, this advanced MCB automatically disconnects the power supply upon receiving a signal from the Prepaid Meter. It is capable of automatically restoring power when the meter detects a new electricity purchase, providing convenience and efficiency in energy management.
Specifications
| Specifications | |
|---|---|
| Rated voltage | 230V~(1P+N，2P)、400V~（3P，3P+N，4P） |
| Rated impulse withstand voltage Uimp | 6000V |
| Rated current(A) | 40、50、63、80、100、125 |
| Rated frequency | 50Hz / 60Hz |
| Number of poles | 1P+N、2P、3P、3P+N、4P |
| Rated breaking capacity lcn(A) | 6kA, 10kA (High breaking type) |
| Short-circuit capacity Ics(A) | 6kA, 7.5kA (High breaking type) |
| Mechanical life (cycles) | ≥10000 |
| Electrical life (cycles) | ≥6000 |
| Overvoltage category | Ⅲ |
| Torque | 2.5N·M |
| Automatic closing time | t ≤ 3s |
| Automatic switch-off time | t ≤ 2s |
| Signal Connection Wire Length | 300mm (Customizable on demand) |
| Pollution degree | 2 |
| Standard | IEC60898-1、GB10963.1 |
| Compliant certification | CCC |
Additional Information
Nominal operation conditions:
- Ambient temperature range: -5℃ to +40℃ (average temperature not exceeding +35℃)
- Altitude: ≤ 2000m
- Relative humidity: not exceeding 50% at maximum temperature; higher humidity allowed at lower temperatures.
Conductor requirements and cross-sectional area:
| Nominal cross-sectional area (mm²) | Rated current In(A) |
|---|---|
| 10 | 32 < In ≤ 50 |
| 16 | 50 < In ≤ 63 |
| 25 | 63 < In ≤ 80 |
| 35 | 80 < In ≤ 100 |
| 50 | 100 < In ≤ 125 |
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