1SCA022276R9990 ABB 400 A 3-Pole IP54 Enclosed Safety Switch

1SCA022276R9990 ABB 400 A 3-Pole IP54 Enclosed Safety Switch

ABB OT400DAUA3T is a 400 A three-pole IP54 steel-sheet enclosed safety switch with bottom cable entry designed for reliable load-break switching and electrical isolation in demanding industrial applications.

SKU: 1SCA022276R9990Alt SKU: OT400DAUA3TMPN: 1SCA022276R9990
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Why Choose the ABB OT400DAUA3T Enclosed Safety Switch?

The ABB OT400DAUA3T, ABB order number 1SCA022276R9990, is a heavy-duty 400 A 3-pole enclosed safety switch designed for reliable load-break switching and electrical isolation in demanding industrial and commercial low-voltage installations. As part of the proven ABB OT enclosed safety switch range and product group 311019-Metal Enclosed (Loadbreak), it combines high-current switching performance with a robust steel-sheet enclosure.

This enclosed switch provides 3-pole switching with manual I-O / ON-OFF operation, making it suitable for isolating large machinery, distribution circuits and other three-phase electrical equipment. Its IP54 protection rating provides protection for industrial environments, while the enclosed design incorporates a black pistol-type operating handle, PE terminal and auxiliary contacts for a practical high-current isolation solution.

With an authoritative rated current of 400 A and bottom cable entry, the OT400DAUA3T is designed for substantial three-phase loads. ABB specifies AC-23A maximum motor outputs of 110 kW at 230 V, 220 kW at 400 V, 280 kW at 500 V and 355 kW at 690 V, making this enclosed safety switch suitable for demanding machinery and power-distribution applications.

Key Advantages

  • Heavy-duty 400 A enclosed safety switch for industrial electrical systems.
  • 3-pole configuration for switching and isolating three-phase circuits.
  • IP54 protection rating for industrial installation environments.
  • Robust steel-sheet enclosure protects the switching equipment.
  • Bottom cable entry supports practical installation and cable routing.
  • Manual I-O / ON-OFF pistol-type handle provides clear local switching and isolation.

Key Features

  • ABB OT enclosed safety switch.
  • 400 A rated current.
  • 3-pole configuration.
  • IP54 enclosure protection.
  • Steel-sheet enclosed construction.
  • Bottom cable-entry arrangement with open bottom.
  • Blank entry plate at the top.
  • Black pistol-type I-O / ON-OFF operating handle.
  • PE terminal included.
  • 2 NO + 1 NC auxiliary contacts included.
  • AC-23A motor switching capability for demanding industrial loads.

Reliable High-Current Electrical Isolation

Enclosed safety switches such as the ABB OT400DAUA3T provide a dependable means of manually disconnecting high-current machinery and electrical equipment from the power supply. The manual ON-OFF operating mechanism provides clear local control, allowing circuits to be isolated for maintenance, inspection and servicing.

The ABB OT enclosed safety switch range is designed for demanding low-voltage industrial applications. The OT400DAUA3T combines 400 A three-pole load-break switching with a robust IP54 steel-sheet enclosure and bottom cable entry, providing a practical isolation solution for large machinery, motor circuits and industrial power-distribution equipment.

Typical Applications

  • Heavy industrial machinery isolation.
  • Large three-phase motor circuits.
  • Manufacturing and processing plants.
  • Industrial power-distribution systems.
  • Pumps, fans and ventilation equipment.
  • Conveyors and material handling systems.
  • Local maintenance and service isolation points.

Technical Specifications

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Material Steel
Device Type Enclosed safety switch / isolator
Series OT Enclosed Safety Switches
ABB order code OT400DAUA3T
ABB order number 1SCA022276R9990
ABB product group 311019-Metal Enclosed (Loadbreak)
Product type Enclosed safety switch / switch disconnector
Rated current 400 A
Number of poles 3-pole
Protection rating IP54
Enclosure material Steel sheet
Operation Manual I-O / ON-OFF switching
Handle type Black pistol-type handle
AC-23A motor output at 230 V 110 kW
AC-23A motor output at 400 V 220 kW
AC-23A motor output at 500 V 280 kW
AC-23A motor output at 690 V 355 kW
Auxiliary contacts included 2 NO + 1 NC
Maximum auxiliary contacts 2 NO + 1 NC
PE terminal Included
Suitable cable entry size (W × D) 400 × 230 mm
Cable entry Bottom entry / open bottom
Top entry Blank entry plate
Weight approx. 28 kg

Frequently Asked Questions

What is the ABB OT400DAUA3T used for?

The ABB OT400DAUA3T is used for manual load-break switching and electrical isolation of high-current three-phase machinery, motor circuits and industrial electrical distribution equipment.

What is the current rating of the ABB OT400DAUA3T?

The OT400DAUA3T has a rated current of 400 A.

How many poles does the ABB OT400DAUA3T have?

The ABB OT400DAUA3T has a 3-pole configuration for switching and isolating three-phase electrical circuits.

What is the protection rating of the ABB OT400DAUA3T?

The OT400DAUA3T has an IP54 protection rating and is supplied in a robust steel-sheet enclosure for industrial installations.

What motor loads can the ABB OT400DAUA3T switch?

The OT400DAUA3T has AC-23A maximum motor output ratings of 110 kW at 230 V, 220 kW at 400 V, 280 kW at 500 V and 355 kW at 690 V.

Trusted Industrial Switching from ABB

ABB OT enclosed safety switches provide reliable load-break switching and local isolation for industrial electrical systems, combining robust switching mechanisms with protective steel enclosures and practical operating features for demanding applications.