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1SCA022277R4480 ABB 250A 3-Pole IP54 Steel Enclosed Safety Switch
ABB OT250KLAA3T is a 250 A three-pole IP54 steel enclosed safety switch-disconnector with open top and bottom cable entries, 2NO+1NC auxiliary contacts and high-capacity AC-23A motor switching for industrial electrical isolation.
£1,062.74
Why Choose the ABB OT250KLAA3T 250A 3-Pole IP54 Enclosed Safety Switch?
The ABB OT250KLAA3T is a heavy-duty 250 A three-pole steel enclosed safety switch-disconnector designed for dependable load switching and electrical isolation in industrial installations. Part of the ABB OT enclosed safety switch range, it combines a high-capacity switch-disconnector with a robust grey steel sheet enclosure for machinery, motor control and low-voltage power distribution applications.
Designed for safe local isolation, the OT250KLAA3T is supplied with a black pistol-type I-O / ON-OFF operating handle, PE terminal and 2NO+1NC auxiliary contacts. The open-entry configuration provides cable-entry positions at both the top and bottom of the enclosure, allowing suitable cable-entry components and flanges to be selected separately for the installation.
With a rated current of 250 A, the OT250KLAA3T provides AC-23A motor switching capability of 75 kW at 230 V, 132 kW at 400 V, 160 kW at 500 V and 200 kW at 690 V. Its IP54 steel enclosure and suitable cable-entry area of 400 × 230 mm make it a practical solution for substantial three-phase industrial loads.
Key Advantages
- Heavy-duty 250 A enclosed safety switch-disconnector for industrial switching and isolation.
- Three-pole configuration designed for three-phase electrical systems.
- High AC-23A motor switching capability of 132 kW at 400 V.
- Robust IP54 steel sheet enclosure for industrial installations.
- Open top and bottom cable entries provide flexibility when configuring incoming and outgoing cabling.
- Factory-supplied 2NO+1NC auxiliary contacts support signalling and control functions.
- PE terminal included for straightforward protective-earth connection.
Key Features
- ABB OT enclosed safety switch range.
- 250 A rated current.
- Three-pole switch-disconnector configuration.
- IP54 protection rating.
- Grey steel sheet enclosure.
- Black pistol-type I-O / ON-OFF handle.
- 2NO+1NC auxiliary contacts included.
- 2NO+1NC maximum auxiliary-contact configuration.
- PE terminal included.
- Open cable entries at the top and bottom.
- Cable-entry components and flanges ordered separately.
- Suitable cable-entry size of 400 × 230 mm.
- 132 kW AC-23A motor output at 400 V.
- 200 kW AC-23A motor output at 690 V.
Reliable Industrial Safety Switching and Electrical Isolation
Enclosed safety switch-disconnectors such as the ABB OT250KLAA3T provide a clearly defined local means of disconnecting electrical machinery and equipment from its power supply during servicing, inspection and maintenance. Its three-pole switching arrangement and substantial AC-23A motor ratings make it suitable for demanding three-phase industrial loads.
The OT250KLAA3T combines a 250 A three-pole switch-disconnector with an IP54 steel enclosure, auxiliary contacts and a PE terminal. Open cable-entry positions at both the top and bottom allow the cable-entry system to be configured around installation requirements, making the unit particularly versatile for industrial switchgear, machinery and motor-isolation applications.
Typical Applications
- Industrial machinery safety isolation and maintenance switching.
- Three-phase motor switching and isolation.
- High-power pumps, fans and compressors.
- Manufacturing and production machinery.
- Industrial process equipment.
- Low-voltage power distribution systems.
- Local isolation of high-current three-phase electrical loads.
Technical Specifications
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| Material | Steel | |
|---|---|---|
| Device Type | Enclosed safety switch / isolator | |
| Series | OT Enclosed Safety Switches | |
| Product group | 311019-Metal Enclosed (Loadbreak) | |
| ABB order code | OT250KLAA3T | |
| ABB order number | 1SCA022277R4480 | |
| Product type | Steel enclosed safety switch-disconnector | |
| Rated current | 250 A | |
| Number of poles | 3 | |
| Protection rating | IP54 | |
| AC-23A motor output at 230 V | 75 kW | |
| AC-23A motor output at 400 V | 132 kW | |
| AC-23A motor output at 500 V | 160 kW | |
| AC-23A motor output at 690 V | 200 kW | |
| Enclosure material | Steel sheet | |
| Enclosure colour | Grey | |
| Handle | Black pistol type, I-O / ON-OFF | |
| Auxiliary contacts included | 2NO+1NC | |
| Maximum auxiliary contacts | 2NO+1NC | |
| PE terminal | Included | |
| Top cable entry | Open | |
| Bottom cable entry | Open | |
| Cable-entry components | Ordered separately | |
| Suitable cable entry size (W × D) | 400 × 230 mm | |
| Weight | approx. 17 kg |
Frequently Asked Questions
What is the ABB OT250KLAA3T used for?
The ABB OT250KLAA3T is a 250 A three-pole steel enclosed safety switch-disconnector designed for load switching and secure electrical isolation in industrial machinery, motor and power distribution applications.
What is the current rating of the ABB OT250KLAA3T?
The OT250KLAA3T has a rated current of 250 A.
What motor power can the ABB OT250KLAA3T switch?
The OT250KLAA3T provides AC-23A motor switching capability of 75 kW at 230 V, 132 kW at 400 V, 160 kW at 500 V and 200 kW at 690 V.
What protection rating does the OT250KLAA3T provide?
The ABB OT250KLAA3T is supplied in a steel sheet enclosure rated IP54 for industrial safety switching and isolation applications.
What cable-entry arrangement does the OT250KLAA3T use?
The OT250KLAA3T has open cable-entry positions at both the top and bottom, with a suitable cable-entry area of 400 × 230 mm. Cable-entry components and flanges are selected separately to suit the installation.
Trusted ABB Switching Technology
ABB OT enclosed safety switches combine dependable load switching and electrical isolation with robust steel enclosure construction, flexible cable-entry arrangements and proven switching technology for demanding industrial machinery and power distribution applications.
