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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-250S04K Switch Disconnector 4-Pole 250A Side-Handle Electrical Isolator for Power Distribution Enclosures
The KRIPAL UKP-250S04K is a 4-pole, 250A AC switch-disconnector with a side-mounted operating handle, combining full switched-neutral isolation with a space-saving side-access design. It is ideal for installations that require both 4-pole disconnection — such as generator transfer systems or TN-C-S distribution schemes — and a side-operated handle layout to accommodate deep cabinets or panels with occupied front sections.
The unit’s spring-charged mechanism ensures rapid, simultaneous switching of all four poles, while its high dielectric and impulse withstand ratings support reliable performance in demanding electrical environments.
Free Quote NowKey Features
- 4-pole configuration with switched neutral for complete circuit isolation
- Rated current up to 250A, selectable from 125A to 250A
- Side-mounted handle for installations with limited front-panel space
- Base/screw mount for secure fitting in deep enclosures
- Simultaneous quick-make/quick-break switching across all four poles
- Rated insulation voltage 1000V (AC-20/DC-20 duty)
- Rated short-circuit making capacity 16kA
- CE, LVD, CB, SEMKO certified
Application
- Generator and transfer-switch systems requiring 4-pole, side-operated isolation
- TN-C-S distribution boards in deep or multi-tier switchgear enclosures
- Data center and critical infrastructure panels with side-access handle needs
- Dual-source switchboards requiring full neutral disconnection
- Industrial cabinets where front-panel space is reserved for controls or metering
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