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1SCA022398R9620 ABB 400A 3 Pole IP54 EMC Steel Enclosed Safety Switch Open Top and Bottom
ABB OT400DTAA3T (1SCA022398R9620) is a 400 A three-pole EMC steel enclosed safety switch-disconnector with IP54 protection, a 220 kW AC-23A motor rating at 400 V AC, open top and bottom cable entries, a black pistol-grip handle and 2 NO plus 1 NC auxiliary contacts.
£1,872.55
Why Choose the ABB OT400DTAA3T 400 A 3-Pole IP54 EMC Enclosed Safety Switch?
The ABB OT400DTAA3T (1SCA022398R9620) is a heavy-duty 400 A, three-pole EMC enclosed safety switch-disconnector designed for reliable electrical isolation and load switching in industrial installations. Part of ABB's OT enclosed safety switch range, it combines a robust steel sheet enclosure, IP54 ingress protection and an electromagnetic compatibility (EMC) design suitable for installations where electromagnetic disturbances must be controlled.
Featuring a 220 kW AC-23A motor switching rating at 400 V AC, the OT400DTAA3T is suitable for appropriately rated three-phase motors, machinery and industrial electrical distribution equipment. Its three-pole switching mechanism provides simultaneous disconnection of the three phase conductors, while the black pistol-grip operating handle offers clear manual ON/OFF control.
The switch is supplied with two normally open and one normally closed auxiliary contacts, a protective earth terminal and an interlocked enclosure cover. Its open top and bottom cable entry arrangement allows suitable EMC cable entry accessories to be selected separately, supporting effective installation of screened cables while maintaining the required enclosure protection.
Key Advantages
- 400 A current rating for demanding industrial electrical applications.
- Three-pole switching configuration provides simultaneous disconnection of three phase conductors.
- 220 kW AC-23A motor switching capability at 400 V AC for appropriately rated motor circuits.
- EMC-oriented construction supports electrical installations requiring effective management of electromagnetic disturbances.
- IP54 steel enclosure provides protection against harmful dust ingress and splashing water when correctly installed.
- Black pistol-grip operating handle enables straightforward manual ON/OFF operation.
- Interlocked enclosure cover provides controlled access to the internal switching equipment.
- Defeatable cover interlock supports authorised maintenance procedures.
- Open top and bottom cable entries provide flexibility for screened cable routing.
- Two normally open auxiliary contacts support suitable signalling and control functions.
- One normally closed auxiliary contact provides an additional indication or interlocking option.
- Protective earth terminal included for appropriate electrical earthing.
- Compatible EMC cable entry accessories can be selected to suit the installation.
- Suitable for industrial motor isolation, machinery and electrical distribution systems.
Key Features
- ABB OT400DTAA3T EMC enclosed safety switch.
- 400 A nominal current rating.
- Three-pole switch-disconnector mechanism.
- IP54-rated steel sheet enclosure.
- EMC safety switch construction.
- AC-23A motor switching power at 230 V AC: 110 kW.
- AC-23A motor switching power at 400 V AC: 220 kW.
- AC-23A motor switching power at 500 V AC: 280 kW.
- AC-23A motor switching power at 690 V AC: 355 kW.
- Black pistol-grip operating handle.
- I–0 / ON–OFF manual switching.
- Interlocked cover with defeatable interlock.
- Open top and bottom cable entry arrangement.
- Suitable cable entry opening: 400 × 230 mm.
- Auxiliary contacts included: 2 NO + 1 NC.
- Protective earth terminal included.
- Grey steel enclosure.
- Catalogue weight: Approximately 23 kg.
- EMC cable entry components and flanges: Ordered separately.
- Designed for fixed industrial electrical installations.
Technical Specifications
- Manufacturer: ABB
- Series: OT Enclosed Safety Switches
- Model: OT400DTAA3T
- ABB order code: OT400DTAA3T
- ABB product ID: 1SCA022398R9620
- EAN: 6417019130071
- Product type: EMC enclosed safety switch-disconnector
- Nominal current rating: 400 A
- Number of poles: 3
- Enclosure material: Steel sheet
- Enclosure colour: Grey
- Enclosure protection rating: IP54
- EMC configuration: EMC safety switch for installations using screened cables
- Operating handle: Pistol-grip handle
- Operating handle colour: Black
- Operating positions: I–0 / ON–OFF
- Operating principle: Manual switch-disconnector
- Cover interlocking: Interlocked cover with defeatable interlock
- Top cable entry: Open
- Bottom cable entry: Open
- Suitable cable entry opening: 400 × 230 mm
- Cable entry components: EMC-compatible entry plates and flanges ordered separately
- AC-23A maximum motor output at 230 V AC: 110 kW
- AC-23A maximum motor output at 400 V AC: 220 kW
- AC-23A maximum motor output at 500 V AC: 280 kW
- AC-23A maximum motor output at 690 V AC: 355 kW
- Normally open auxiliary contacts included: 2 NO
- Normally closed auxiliary contacts included: 1 NC
- Maximum auxiliary contact configuration: 2 NO + 1 NC
- Protective earth terminal: Included
- Catalogue weight: Approximately 23 kg
- Installation type: Fixed mounting
- ABB product group: Metal Enclosed (Loadbreak)
- Product category: EMC Metal Enclosed Safety Switches
Reliable 400 A Three-Pole Isolation with EMC Protection and Open Cable Entries
The ABB OT400DTAA3T provides manual electrical switching and isolation for appropriately rated three-phase industrial circuits. Its three-pole mechanism disconnects the three switched conductors together, making it suitable for local isolation of machinery, motor supplies and electrical distribution equipment. With a 220 kW AC-23A motor switching rating at 400 V AC, it supports substantial industrial motor loads where the complete electrical design satisfies the relevant switching requirements.
The EMC steel enclosure is intended for applications where electromagnetic disturbance control is important. Effective EMC performance depends on the complete installation, including the use of suitably screened cables, compatible cable entry components, correct shield termination and appropriate earthing arrangements. ABB specifies that cables used with disturbance-protected safety switches must be shielded.
The enclosure features open top and bottom cable entry areas with a suitable entry opening of 400 × 230 mm. Compatible EMC cable entry plates, flanges and fixing profiles must be selected separately. Correct installation of these components is important for preserving both the intended EMC performance and the IP54 enclosure protection rating.
The included 2 NO + 1 NC auxiliary contacts can be incorporated into suitable indication or electrical interlocking circuits. The black pistol-grip operating handle and interlocked cover provide convenient manual operation and controlled access. As a non-fused switch-disconnector, the OT400DTAA3T requires appropriately coordinated overload and short-circuit protection elsewhere in the electrical installation.
Typical Applications
- Industrial three-phase motor isolation.
- Machinery installations requiring EMC-conscious electrical design.
- Variable speed drive and motor supply installations.
- Industrial electrical distribution systems.
- Manufacturing and production machinery.
- Industrial pumps, fans and ventilation equipment.
- Conveyor and material handling systems.
- Electrical installations using screened power cables.
- Industrial automation and process equipment.
- Local maintenance isolation points.
- Electrical systems requiring auxiliary switch-position signalling.
- Fixed steel enclosed switchgear installations.
- Projects requiring open top and bottom EMC cable entry arrangements.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | EMC safety switch | |
|---|---|---|
| Material | Steel |
Frequently Asked Questions
What is the ABB OT400DTAA3T used for?
The ABB OT400DTAA3T is a 400 A three-pole EMC enclosed safety switch-disconnector designed for manual load switching and electrical isolation in industrial installations requiring consideration of electromagnetic disturbances.
What is the current rating of the ABB OT400DTAA3T?
The OT400DTAA3T has a 400 A nominal current rating. The permissible operational current must also be verified against the applicable voltage, utilisation category and installation conditions.
How many poles does the ABB OT400DTAA3T have?
The ABB OT400DTAA3T has three switching poles, allowing simultaneous disconnection of three phase conductors in an appropriately designed electrical circuit.
What is the IP rating of the ABB OT400DTAA3T?
The OT400DTAA3T has an IP54 enclosure protection rating, providing protection against harmful dust ingress and splashing water when the completed installation is correctly assembled and sealed.
What does EMC mean on the ABB OT400DTAA3T?
EMC stands for electromagnetic compatibility. The OT400DTAA3T is designed for installations where electromagnetic disturbances must be managed through appropriate enclosure construction, screened cables, compatible cable entry accessories and correct earthing.
Does the ABB OT400DTAA3T require screened cables?
Yes. ABB specifies that cables used with disturbance-protected safety switches must be shielded. Suitable EMC cable entry components and correct screen termination are important for the intended installation performance.
What is the motor switching rating of the ABB OT400DTAA3T?
The OT400DTAA3T has an AC-23A maximum motor output rating of 220 kW at 400 V AC. ABB also lists 110 kW at 230 V AC, 280 kW at 500 V AC and 355 kW at 690 V AC.
Does the ABB OT400DTAA3T have open cable entries?
Yes. The OT400DTAA3T features open top and bottom cable entry arrangements, allowing suitable EMC-compatible cable entry components to be selected for the installation.
Are EMC cable entry flanges supplied with the ABB OT400DTAA3T?
No. Compatible EMC cable entry components and flanges must be ordered separately. ABB also specifies that entry plate fixing profiles are used for mounting the safety switches.
What cable entry opening is specified for the ABB OT400DTAA3T?
ABB specifies a suitable cable entry opening of 400 × 230 mm for the OT400DTAA3T. This is the cable entry provision size rather than the overall enclosure dimensions.
What type of operating handle does the ABB OT400DTAA3T have?
The switch is supplied with a black pistol-grip operating handle providing manual I–0 / ON–OFF switching.
Does the ABB OT400DTAA3T have an interlocked cover?
Yes. The OT400DTAA3T has an interlocked enclosure cover with a defeatable interlock function, supporting controlled access by appropriately authorised personnel.
Does the ABB OT400DTAA3T include auxiliary contacts?
Yes. The OT400DTAA3T is supplied with two normally open and one normally closed auxiliary contacts for suitable switch-position indication and control arrangements.
Does the ABB OT400DTAA3T include a protective earth terminal?
Yes. ABB specifies that the OT400DTAA3T includes a protective earth terminal for appropriate earthing of the steel enclosure.
What is the weight of the ABB OT400DTAA3T?
ABB's enclosed safety switch ordering information lists a catalogue weight of approximately 23 kg for the OT400DTAA3T.
Is the ABB OT400DTAA3T a fused switch?
No. The ABB OT400DTAA3T is a non-fused switch-disconnector. Suitable overload and short-circuit protective devices must be provided separately according to the electrical installation requirements.
What is the difference between the ABB OT400DTAA3T and OT400DUUA3T?
Both are 400 A three-pole EMC steel enclosed safety switches with IP54 protection. The OT400DTAA3T has open cable entries at both the top and bottom, whereas the OT400DUUA3T has a blank top entry plate and an open bottom cable entry.
Trusted by Industrial Electrical and Automation Professionals
ABB OT EMC enclosed safety switches are designed for electrical contractors, industrial maintenance engineers, panel builders and machinery manufacturers requiring dependable isolation in installations where electromagnetic disturbances must be controlled. The ABB OT400DTAA3T (1SCA022398R9620) combines 400 A three-pole switching, a 220 kW AC-23A motor rating at 400 V AC, IP54 steel enclosure, black pistol-grip handle, 2 NO + 1 NC auxiliary contacts and open top and bottom EMC cable entry provisions for demanding industrial applications.
