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ABB OT400DLUU3TAY (1SCA022315R0720) 400 A Aylesford industrial safety switch from ABB’s metal enclosed load-break product group. Designed for manual switching and electrical isolation in appropriately rated industrial machinery and three-phase electrical installations.
£1,159.70
The ABB OT400DLUU3TAY, manufacturer order number 1SCA022315R0720, is a 400 A industrial safety switch designed for manual electrical isolation in demanding machinery and power distribution applications. Identified in ABB's product listing as the 400A Safety Switch – Aylesford, this model belongs to the manufacturer's Metal Enclosed (Loadbreak) product group.
As a member of the ABB OT400 enclosed switch-disconnector family, the OT400DLUU3TAY provides a high-capacity isolation solution for industrial electrical systems. Its model designation identifies it as a three-pole configuration, suitable for applications requiring simultaneous disconnection of three phase conductors through a single switching mechanism.
The Aylesford designation distinguishes this particular ABB product variant from standard catalogue models. While ABB's wider OT400 safety switch range includes robust steel enclosures, externally operated handles and industrial cable-entry arrangements, the precise construction and accessories supplied with this specific variant should be confirmed against its individual manufacturer documentation.
For electrical contractors, machinery manufacturers and industrial maintenance teams, the OT400DLUU3TAY offers a clearly identified 400 A-class ABB enclosed safety switch for use in appropriately designed installations where dependable isolation and equipment safety are essential.
The ABB OT400DLUU3TAY is intended for industrial electrical installations requiring a substantial manual isolation device. Its 400 A classification places it within ABB's high-capacity OT400 switch-disconnector range, while its three-pole configuration makes it relevant to appropriately designed three-phase electrical systems.
In a typical three-phase installation, a three-pole switch disconnector operates the three phase conductors together. This provides a single switching point for disconnecting machinery or equipment from its electrical supply. Whether the device is suitable for a particular motor or load depends on the operating voltage, full-load current, utilisation category and the detailed ABB ratings for this exact product.
The Aylesford product designation is important when specifying or replacing the OT400DLUU3TAY. ABB offers numerous OT400 enclosed safety switch variants with different cable-entry configurations, handles, enclosure arrangements and accessory combinations. A product intended for a particular project or installation should not be assumed to have the same features as a visually similar standard model.
The product belongs to ABB's Metal Enclosed (Loadbreak) group, a range intended to provide industrial-grade enclosed switching solutions. For the OT400DLUU3TAY, the enclosure's precise ingress protection rating, construction details and cable-entry configuration should be checked against the individual Aylesford variant documentation before installation.
When selecting a 400 A safety switch, engineers should verify the relevant AC-21, AC-22 or AC-23 utilisation-category ratings, depending on the connected load. The current rating alone does not establish suitability for every switching duty, particularly where motors or other highly inductive equipment are involved.
The OT400DLUU3TAY is a switch disconnector rather than an automatic overcurrent protective device. It does not replace the need for appropriately selected circuit breakers, fuses or other protective equipment. Maintenance personnel must follow approved isolation procedures, including securing the supply against reconnection where required and verifying the absence of voltage before work begins.
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| Device Type | Enclosed safety switch / isolator |
|---|
The ABB OT400DLUU3TAY is a 400 A-class industrial safety switch intended for manual electrical switching and isolation. It is suitable for consideration in appropriately designed industrial machinery and three-phase electrical installations.
The manufacturer order number is 1SCA022315R0720. The ABB model designation is OT400DLUU3TAY, and the supplied product description is 400A Safety Switch – Aylesford.
The OT400DLUU3TAY has a 400 A current classification. The applicable rated operational current for a particular installation should be confirmed using the exact ABB technical documentation and the relevant voltage and utilisation category.
The model designation indicates a three-pole configuration. Three-pole switch disconnectors are commonly used to disconnect the three phase conductors of a three-phase electrical supply.
Aylesford is part of the supplied product designation for this ABB safety switch variant. It should be treated as a specific product identifier rather than evidence of a particular enclosure, handle or cable-entry arrangement.
Yes. ABB classifies the OT400DLUU3TAY within product group 311019 – Metal Enclosed (Loadbreak). The exact enclosure material, dimensions and protection rating should be verified against the specific product documentation.
The supplied specification does not state an ingress protection rating for this Aylesford variant. Although many ABB OT400 metal enclosed safety switches are rated IP65, the OT400DLUU3TAY's exact IP rating should be confirmed before specifying it for a particular environment.
It may be suitable for motor isolation where the operating voltage, motor current, utilisation category and switching duty are within the manufacturer's ratings. The exact ABB technical data should be checked before selecting the switch for a motor application.
No. A switch disconnector provides manual switching and isolation but does not replace a fuse, circuit breaker or other required automatic overcurrent protective device.
Confirm the manufacturer number 1SCA022315R0720, the Aylesford variant designation, rated operational current, voltage, enclosure protection, cable-entry arrangement, operating handle and supplied accessories against the exact ABB product documentation.
The ABB OT400DLUU3TAY provides a 400 A-class enclosed safety switch solution within ABB's metal enclosed load-break product range. Its Aylesford-specific designation and unique manufacturer reference make accurate identification especially important for industrial electrical contractors, machine builders, plant engineers and maintenance teams.
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