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OT250KLAA4B ABB 250 A 4-Pole IP54 Steel Enclosed Switch-Disconnector
ABB OT250KLAA4B is a 250 A four-pole switch-disconnector in an IP54 steel-sheet enclosure with open top and bottom cable-entry areas, a black pistol-type operating handle and N and PE terminals for dependable industrial electrical isolation.
£1,162.84
Why Choose the ABB OT250KLAA4B Enclosed Switch-Disconnector?
The ABB OT250KLAA4B is a heavy-duty 250 A four-pole enclosed switch-disconnector designed for dependable switching and electrical isolation in industrial power distribution, machinery and infrastructure applications. Part of ABB's established OT range, it combines a high-performance switch-disconnector with a robust steel-sheet enclosure for a complete industrial isolation solution.
This model is housed in an IP54 steel-sheet enclosure measuring 400 × 600 × 230 mm. The top and bottom sides are supplied open without cable entries, allowing suitable C-flanges or ring-flanges to be selected separately according to the cable arrangement and installation requirements.
The OT250KLAA4B provides rated operational currents of 250 A AC-22A at up to 500 V and 250 A AC-23A at up to 415 V. It includes a black pistol-type operating handle with I-0 and ON-OFF indication, together with neutral and protective-earth terminals for practical integration into industrial electrical installations.
Key Advantages
- Heavy-duty 250 A enclosed switch-disconnector for industrial isolation.
- Four-pole configuration for simultaneous switching of four conductors.
- Robust steel-sheet enclosure for industrial installations.
- IP54 enclosure protection against dust and water ingress.
- Open top and bottom cable-entry areas provide flexibility for installation-specific cable accessories.
- Supplied with a black pistol-type operating handle, neutral terminal and PE terminal.
Key Features
- ABB OT enclosed switch-disconnector.
- 250 A rated operational current.
- 4-pole switching configuration.
- Steel-sheet enclosure.
- IP54 protection rating.
- 250 A AC-22A rating at up to 500 V.
- 250 A AC-23A rating at up to 415 V.
- Black pistol-type handle with I-0 and ON-OFF indication.
- Neutral and protective-earth terminals included.
- Open cable-entry areas for separately selected C-flanges or ring-flanges.
Robust Four-Pole Enclosed Isolation
The OT250KLAA4B combines four-pole electrical isolation with a protective steel-sheet enclosure, providing a practical complete assembly for machinery, distribution systems and local isolation points. Its IP54 enclosure provides protection suited to industrial environments while the four-pole arrangement enables simultaneous disconnection of four conductors.
The enclosure is supplied with open top and bottom cable-entry areas. Compatible C-flanges, ring-flanges and associated cable-entry components can therefore be selected separately to suit the installation, while the included pistol handle, neutral terminal and PE terminal simplify integration into the electrical system.
Typical Applications
- Industrial four-pole power distribution.
- Three-phase systems requiring switched neutral isolation.
- Local machinery and equipment isolation.
- Manufacturing and process plants.
- Industrial switchboards and distribution systems.
- OEM machinery and infrastructure electrical installations.
Technical Specifications
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| Material | Steel | |
|---|---|---|
| Device Type | Enclosed switch disconnector | |
| Series | OT Switches | |
| ABB order code | 1SCA022341R0570 | |
| Product type | Enclosed switch-disconnector | |
| Rated operational current | 250 A | |
| Number of poles | 4 | |
| Enclosure material | Steel sheet | |
| Enclosure protection | IP54 | |
| AC-22A rated operational current at up to 500 V | 250 A | |
| AC-23A rated operational current at up to 415 V | 250 A | |
| Cable entries | Open top and bottom | |
| Enclosure dimensions (W × H × D) | 400 × 600 × 230 mm | |
| Operating handle | Black pistol type with I-0 / ON-OFF indication | |
| Neutral terminal | Included | |
| PE terminal | Included | |
| Weight | 17 kg | |
| Product group | 311027-OT Switches |
Frequently Asked Questions
What is the ABB OT250KLAA4B?
The ABB OT250KLAA4B is a 250 A four-pole switch-disconnector housed in an IP54 steel-sheet enclosure for industrial switching and electrical isolation.
What are the electrical ratings of the OT250KLAA4B?
The OT250KLAA4B is rated at 250 A AC-22A at up to 500 V and 250 A AC-23A at up to 415 V.
What protection rating does the OT250KLAA4B enclosure provide?
The steel-sheet enclosure provides an IP54 protection rating for industrial electrical installations.
Does the ABB OT250KLAA4B include an operating handle?
Yes. The OT250KLAA4B includes a black pistol-type operating handle with I-0 and ON-OFF indication, together with neutral and protective-earth terminals.
Does the OT250KLAA4B include cable entries?
No. The top and bottom sides are supplied open without cable entries. Suitable C-flanges or ring-flanges and associated cable-entry accessories must be selected separately for the installation.
Trusted ABB Enclosed Switching Technology
ABB enclosed OT switch-disconnectors combine dependable manual electrical isolation with robust enclosure protection, providing practical switching solutions for industrial machinery, power distribution and infrastructure applications.
