| Rated Insulation Voltage | 660V (standard) | Maximum withstand voltage level of the system |
| Rated Operating Voltage | AC380V/400V, 660V | Three-phase 50Hz/60Hz industrial low-voltage distribution |
| Horizontal Main Busbar Current | 630A ~ 4000A (commonly 1600/2000/2500/3200A) | Total incoming busbar of the whole switchgear |
| Vertical Branch Busbar Current | 630A, 800A, 1000A | Vertical power supply busbar of each cabinet |
| Max Current per Drawer Circuit | 630A | Upper limit of a single drawer unit |
| Rated Short-time Withstand Current (1s) | 30kA / 50kA / 80kA (mainstream 50kA) | Busbar thermal stability |
| Rated Peak Withstand Current | 63kA / 105kA / 176kA | Dynamic stability against short-circuit impulse |
| Short-circuit Breaking Capacity of Drawer Unit | ≤50kA | Breaking performance of the circuit breaker inside the drawer |
| Enclosure Degree of Protection | IP30 (standard), optional IP40 | Dust-proof and solid foreign object protection for indoor switchgear room |
| Standard Enclosure Dimensions | Width 800/1000mm × Depth 800/1000mm × Height 2200mm | Modular 25mm standard mounting hole pitch |
| Enclosure Material | Galvanized steel sheet + externally electrostatic powder-coated | Assembled non-welded frame, anti-corrosion and rust-proof |
| Drawer Positions | Three mechanically locked positions: Connected, Test, Isolated | Safe isolation for maintenance |
