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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-1600F03P 1600A 3-Pole Switch Disconnector with Door-Mounted Handle & Extension Shaft – External Operation Isolator for Enclosed Switchgear
The UKP-1600F03P is a 1600A, 3-pole switch-disconnector configured for external (door-mounted) operation, using an extension shaft to connect the internally mounted switch body to a handle installed directly on the cabinet door.
This design allows the operator to switch the isolator from outside the enclosure without opening the panel door, improving operational safety by keeping personnel clear of live internal compartments during switching. Like the other 1600A frame models, the switch itself mounts via base/screw fixing inside the cabinet, but instead of an internal (indoor) handle, this variant routes operation to the exterior of the enclosure.
Electrically it shares the same high-performance ratings as the UKP-1600 series: selectable 1250A/1600A rated current, 1000V insulation voltage, 10kV dielectric strength, 12kV impulse withstand, up to 16,000A making capacity, 12,800A breaking capacity, 50kA short-time withstand current, and 110kA rated short-circuit making capacity.
Free Quote NowKey Features
- Door-mounted operating handle with extension shaft for external, outside-the-enclosure operation
- Improves operator safety by allowing switching without opening the cabinet door
- 3-pole, 1600A frame with selectable 1250A/1600A rated current
- Base/screw panel mounting for the switch body inside the enclosure
- Visible position window (viewable through the enclosure where applicable)
- Stored-energy mechanism for fast, positive switching action
- On-load switching capability for large current loads
- High fault-current performance: 50kA short-time withstand, 110kA short-circuit making capacity
- Suited to fully enclosed switchgear where interlocked, door-operated isolation is required
Application
- Enclosed switchgear and switchboards requiring door-interlocked external isolation
- Applications where safety standards call for isolation without opening the enclosure door
- Industrial plants and utilities using lockable, externally operated main disconnects
- Large motor control centers and power distribution enclosures with door-mounted isolator handles
- Retrofit or upgrade projects converting internal-handle switchgear to safer external operation
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