| Brand | ROCKWILL |
| Model NO. | Low Voltage Fixed Switchgear for Industrial Distribution |
| Rated voltage | 380V |
| Rated peak value withstand current | 30kA |
| Rated short circuit breaking current | 15kA |
| Series | GGD |
GGD series AC low-voltage fixed switchgear is designed for three-phase 50Hz distribution systems with rated voltage 380V and busbar current up to 3150A. Available in three performance tiers — GGD1 (15kA), GGD2 (30kA), and GGD3 (50kA) — to match different system fault levels.
Fixed-mount construction with high breaking capacity, excellent dynamic and thermal stability, and efficient heat dissipation. Suitable for power plants, substations, factories, and mines. Complies with IEC 61439-1 / IEC 61439-2 and GB/T 7251.1.
| Type | Rated voltage (V) | Rated current (A) | Rated short circuit breaking current (kA) | Rated short time withstand current (kA) | Rated peak withstand current (kA) |
| GGD1 | 380 | 400、600(630)、1000 | 15 | 15(1S) | 30 |
| GGD2 | 380 | 1000、1500、1600、2000 | 30 | 30(1S) | 63 |
| GGD3 | 380 | 2000、(2500)、3150 | 50 | 50(1S) | 105 |
| Condition | Value |
|---|---|
| Ambient temperature (max.) | +40°C |
| Ambient temperature (24h avg.) | ≤35°C |
| Ambient temperature (min.) | -5°C (indoor) |
| Altitude | ≤1000 m |
| Relative humidity (daily avg.) | ≤95% |
| Relative humidity (monthly avg.) | ≤90% |
Q:What is a low-voltage switchgear?
A:Low - voltage switchgear is an electrical assembly for systems under 1000V AC or 1500V DC. It contains circuit breakers, switches, fuses, and contactors. These components control and protect electrical circuits. In industrial, commercial, and residential settings, it enables safe power distribution, interrupting current during faults to safeguard equipment and people.
Q: What AC voltage is low-voltage?
A: In the context of electrical systems, AC voltage is generally considered low - voltage if it is below 1000V. This includes common voltages like 110V and 220V used in residential and commercial applications. Low - voltage systems are designed to be relatively safer and are used for a wide range of electrical devices and power distribution at the user end.
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