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| Model | UKP-250 | UKP-315 | UKP-400 |
| Number of Poles | 3P / 4P | 3P / 4P | 3P / 4P |
| Rated Current Ie (A) | 125–250 | 275–315 | 250–400 |
| Rated Insulation Voltage Ui / Ue (AC-20 / DC-20) | 1000 V | 1000 V | 1000 V |
| Dielectric Strength (50 Hz / 1 min) | 10 kV | 10 kV | 10 kV |
| Rated Impulse Withstand Voltage | 12 kV | 12 kV | 12 kV |
| Rated Making Capacity (A) | Up to 2500 | Up to 3150 | Up to 4000 |
| Rated Breaking Capacity (A) | Up to 2000 | Up to 2520 | Up to 3200 |
| Rated Short-Time Withstand Current (kA) 1000 V / 0.15 s | 15 | 31 | 31 |
| Rated Short-Time Withstand Current (kA) 1000 V / 0.25 s | 15 | 24 | 24 |
| Rated Short-Time Withstand Current (kA) 1000 V / 1 s | 8 | 15 | 15 |
| Rated Short-Circuit Making Capacity (kA) | 16 | 30 | 30 |
| Operating Torque (N·m) | 7 | 7 | 16 |
UKP-250F22K AC Switch Disconnector 4-Pole 250A Non-Fused Main Isolation Switch for Power Distribution
The KRIPAL UKP-250F22K is a 4-pole, 250A AC switch-disconnector with a front-mounted operating handle, purpose-built for applications requiring switched-neutral isolation, such as generator changeover systems, TN-S/TN-C-S distribution boards, and installations where full 4-pole disconnection is mandated by local wiring codes.
Its base/screw-mount construction integrates easily into standard panel layouts, while the reinforced spring mechanism guarantees consistent, high-speed switching across all four poles simultaneously for a clean, simultaneous break.
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Key Features
- 4-pole configuration including switched neutral for full circuit isolation
- Rated current up to 250A, selectable from 125A to 250A
- Front-face mounted handle for compact panel integration
- Base/screw mount for secure fixing in enclosures and switchboards
- Simultaneous quick-make/quick-break action across all four poles
- Rated insulation voltage 1000V (AC-20/DC-20 duty)
- Dielectric strength 10kV (50Hz/1min); impulse withstand 12kV
- Visible position indicator window for status verification
- CE, LVD, CB, SEMKO certified
Application
- Generator/ATS changeover panels requiring switched neutral
- TN-S or TN-C-S distribution boards where 4-pole isolation is code-required
- Data center and critical-load panels needing complete circuit separation
- Multi-source or dual-supply switchboards
- Facilities with strict neutral-switching and earthing scheme requirements
Specifications & Drawings
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Send the pole configuration, current rating and order quantity. A KRIPAL engineer will come back with pricing and lead time.
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UKP-250F22K AC Switch Disconnector 4-Pole 250A Non-Fused Main Isolation Switch for Power Distribution
Share quantity, destination and any OEM requirement. A KRIPAL engineer will reply with factory-direct pricing and lead time.
