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| Model | UKP-1250 | UKP-1600 |
| Number of Poles | 3P / 4P | 3P / 4P |
| Rated Current Ie (A) | 1000–1250 | 1600 |
| Rated Insulation Voltage Ui / Ue (AC-20 / DC-20) | 1000 V | 1000 V |
| Dielectric Strength (50 Hz / 1 min) | 10 kV | 10 kV |
| Rated Impulse Withstand Voltage | 12 kV | 12 kV |
| Rated Making Capacity (A) | Up to 12500 | Up to 16000 |
| Rated Breaking Capacity (A) | Up to 10000 | Up to 12800 |
| Rated Short‑Time Withstand Current (kA) 690 V | 50 / 0.25 s 50 / 1 s |
50 / 0.25 s 50 / 1 s |
| Rated Short‑Circuit Making Capacity (kA) | 110 | 110 |
| Operating Torque (N·m) | 65 | 65 |
UKP-1600F03K 1600A Heavy-Duty Switch Disconnector with Phase Barrier – High-Current 3-Pole Isolator for Industrial Main Switchgear
The UKP-1600F03K is a heavy-duty, 3-pole switch-disconnector rated up to 1600A, built for high-current main isolation duty in large industrial and utility-scale power distribution systems.
It includes integrated phase barriers between poles, adding an extra layer of protection against phase-to-phase flashover and improving creepage/clearance distances for higher safety margins in demanding environments.
The unit mounts via base/screw panel fixing, with the operating handle installed on the front of the switch body for direct indoor operation. Selectable at 1250A or 1600A rated current, it delivers a 1000V rated insulation voltage, 10kV dielectric strength, and 12kV impulse withstand voltage.
Its high-current performance is substantial: up to 16,000A rated making capacity, 12,800A rated breaking capacity, 50kA short-time withstand current (0.25s and 1s at 690V), and a rated short-circuit making capacity of 110kA — making it well suited to heavy industrial loads and large power distribution boards.
Free Quote NowKey Features
- 1600A frame size with selectable 1250A/1600A rated current
- Integrated phase barriers for enhanced inter-pole insulation and arc-flash risk reduction
- Front-mounted operating handle for direct in-panel operation
- Base mount / screw mount fixing
- Visible position window for clear switch-status confirmation
- Stored-energy operating mechanism for fast, decisive quick-make/quick-break action
- On-load switching capability for large current loads
- High short-time withstand current (50kA) and short-circuit making capacity (110kA) for robust fault-condition performance
- Suited for heavy industrial, utility, and large commercial power infrastructure
Application
- Main incoming isolator for large industrial substations and main switchboards
- High-current isolation point for transformers, generators, and large motor control centers
- Utility and large commercial building main power distribution isolation
- Industrial plants with high-capacity power feeders requiring a robust, high-current disconnect
- Applications where phase-to-phase insulation barriers are specified for added safety margin
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