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| Model | UKGD-400 | UKGD-630 |
| Poles | 2P/4P | 2P/4P |
| Rated Current (Ie) | 250-400A | 400-630A |
| Rated Insulation Voltage (Ui/Ue) DC-20 | 1500V | 1500V |
| Dielectric Strength | 10kV | 10kV |
| Rated Impulse Withstand Voltage | 12kV | 12kV |
| Conductor Cross‑section (Cu/mm²) | 120‑240 | 2×185 |
| Rated Making Capacity (A) | 4000 | 6300 |
| Rated Breaking Capacity (A) | 3200 | 5040 |
| Rated Short‑Time Withstand Current (kA) | 8kA (1s) 10kA (0.05s) 20kA (0.15s) |
8kA (1s) 10kA (0.05s) 20kA (0.15s) |
| Rated Short‑Circuit Making Capacity (kA) | 30 | 40 |
| Utilization Category | DC‑21B/PV2 | DC‑21B/PV2 |
| Mechanical Life (operations) | 10,000 | 10,000 |
| Degree of Protection | IP20/IP66 (outside enclosure) | IP20/IP66 (outside enclosure) |
UKGD-400F11K 400A 2-Pole DC1500V Main Isolating Switch for PV and Energy Storage Cabinets
The UKGD-400F11K covers the 250A–400A current band at DC1500V, with CE, CB, and TUV certification and a notably higher rated short-circuit making capacity of 30kA.
It is designed to serve as a main isolation switch in photovoltaic power plants, battery energy storage cabinets, power conversion systems, high-voltage DC distribution panels, and other equipment that requires dependable manual separation of a high-current DC circuit.
Free Quote NowKey Features
- 2-pole switch disconnector for DC1500V systems
- CE, CB, and TÜV certified, designed for DC-21B/PV2 utilization categories
- Visible contact window for safe visual verification of switch position
- Independent arc-quenching chamber enables on-load switching and longer electrical life
- Built-in permanent magnet for polarity-free magnetic arc blow-out and fast arc extinction
- Modular design (operating mechanism, handle, contact block)
- Lockable handle for maintenance safety (LOTO compatible)
Application
- Main battery disconnect in energy storage cabinets
- PCS-side high-voltage DC isolation
- DC1500V photovoltaic inverter cabinets
- Main switching in PV combiner and recombiner panels
- High-voltage DC distribution for data centers
- DC fast-charging power-module isolation
- Industrial DC feeders for electrolysis, electroplating, and marine systems
- Rail transit DC power equipment maintenance isolation
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