Product Overview
The automatic grid-connection dedicated circuit breaker (here in after referred to as the circuit breaker) is specifically designed for low-voltage applications in distributed photovoltaic (PV) grid integration. It integrates an electric operating mechanism, an intelligent controller, and the functionality of a molded case circuit breaker into a single unit. It provides protection for PV grid-connected system lines or electrical equipment against overcurrent, short circuits, phase loss, undervoltage, overvoltage, and loss of voltage.
Standards Compliance:
This product complies with the following standards:
- GB/T 14048.2
- Q/GDW 1972-2013
Main Performance Indicators of the Controller
| Model Specification | Parameter Description |
|---|---|
| Frame Rated Current Inm(A) | 250, 400, 630 |
| Rated Current In(A) | Continuously adjustable from 0.4 to 1.0 Inm(A) |
| Applicable Pole Count | 3P+N |
| Delayed Reclosing Time(s) | 20–60 |
| Overvoltage Setting(V) | Default: 290V (Range: 240V–350V) |
| Overvoltage Delay(s) | Default: 3s (Range: 0s–10s) |
| Overvoltage Recovery(V) | Default: 270V (Range: 240V–300V) |
| Undervoltage Setting(V) | Default: 160V (Range: 120V–200V) |
| Undervoltage Delay(s) | Default: 3s (Range: 0s–10s) |
| Undervoltage Recovery(V) | Default: 190V (Range: 160V–220V) |
| Total Voltage Loss Setting(V) | Default: 50V (Range: 50V–100V) |
| Operating Characteristic Classification | AC |
| Product Application Category | Class B |