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OT400TPN-A ABB 400A 3P+N IP65 Steel Enclosed Switch Disconnector
ABB OT400TPN-A 400 A three-pole plus neutral (3P+N) steel enclosed switch disconnector with IP65 enclosure protection for manual electrical isolation and switching in industrial and commercial low-voltage power distribution installations.
£1,143.69
Why Choose the ABB OT400TPN-A 400A 3P+N IP65 Steel Enclosed Switch Disconnector?
The ABB OT400TPN-A is a heavy-duty 400 A three-pole plus neutral (3P+N) steel enclosed switch disconnector designed for reliable electrical isolation and manual switching in industrial and commercial low-voltage installations. Part of ABB's established OT switch-disconnector range, it provides a robust solution for applications requiring a high-current three-phase isolation point with a neutral connection arrangement.
Featuring a 400 A nominal current rating, a 3P+N configuration and an IP65-rated steel enclosure, the OT400TPN-A is suitable for appropriately designed electrical distribution systems, machinery supplies and industrial power installations. Its enclosed construction helps protect the switching mechanism from dust and water ingress while providing a clearly identifiable location for electrical isolation.
The steel enclosure provides mechanical protection for the internal switch-disconnector assembly, making the OT400TPN-A suitable for demanding industrial environments. Its IP65 protection rating indicates dust-tight construction and resistance to water jets when the enclosure is correctly installed with suitable cable entry fittings and seals.
As a manually operated switch disconnector, the OT400TPN-A allows electrical circuits to be disconnected for planned maintenance, servicing and inspection. The 3P+N designation identifies a three-phase plus neutral arrangement; the precise neutral switching or terminal configuration should be confirmed from ABB's model-specific technical documentation before installation.
Key Advantages
- 400 A nominal current rating for suitable high-current electrical distribution applications.
- Three-pole plus neutral (3P+N) configuration for three-phase systems requiring a neutral connection arrangement.
- Manual switch-disconnector operation provides a defined electrical isolation point.
- IP65-rated steel enclosure protects against dust ingress and water jets when correctly installed.
- Robust metal construction provides mechanical protection for the internal switching assembly.
- Suitable for industrial and commercial electrical installations requiring local or distribution-level isolation.
- Enclosed switching mechanism helps protect internal components from environmental exposure.
- Supports planned maintenance procedures by providing an accessible means of disconnection.
- Suitable for appropriately rated three-phase power circuits in industrial facilities.
- ABB OT switch-disconnector technology designed for professional electrical installations.
- Surface-mounted enclosure concept supports installation in suitable electrical plant areas.
- Can be incorporated into coordinated electrical protection systems using separately specified protective devices.
Key Features
- ABB OT switch-disconnector range.
- 400 A rated current.
- 3P+N electrical configuration.
- Steel enclosed construction.
- IP65 enclosure protection rating.
- Manual switching and isolation functionality.
- Designed for three-phase electrical distribution systems.
- Neutral connection arrangement as identified by the 3P+N product designation.
- Enclosed switch-disconnector assembly for industrial installations.
- Suitable for suitably rated incoming and outgoing power circuits.
- Compatible with professionally designed electrical isolation procedures.
- Industrial metal enclosure for physical protection of switching components.
- Suitable for commercial building services and industrial plant applications.
- ABB order code OT400TPN-A.
- ABB product group 311019-Metal Enclosed (Loadbreak).
Technical Specifications
- Manufacturer: ABB
- Product range: OT Switch-Disconnectors
- Model: OT400TPN-A
- ABB order code: OT400TPN-A
- ABB product group: 311019-Metal Enclosed (Loadbreak)
- Product type: Steel enclosed switch disconnector
- Rated current: 400 A
- Electrical configuration: 3P+N
- Phase arrangement: Three-phase plus neutral
- Enclosure material: Steel
- Enclosure protection rating: IP65
- Operating principle: Manual switching and disconnection
- Switching function: Load switching and electrical isolation within the applicable manufacturer ratings
- Application category: Industrial and commercial low-voltage electrical distribution
- Installation type: Enclosed electrical switchgear installation
- Neutral arrangement: Refer to ABB's model-specific wiring diagram for neutral switching and termination details
- Rated operational voltage: Refer to the ABB technical datasheet
- Utilisation-category ratings: Refer to the ABB technical datasheet
- Short-circuit withstand and coordination ratings: Refer to ABB documentation and the selected upstream protective device
- Cable entry configuration: Confirm against the model-specific enclosure drawing
- Terminal capacity: Confirm against ABB installation instructions
- Enclosure dimensions: Confirm against the ABB dimensional drawing
- Applicable product standard: IEC 60947-3, subject to manufacturer conformity documentation
Dependable 400A Three-Phase and Neutral Electrical Isolation
The ABB OT400TPN-A is intended for electrical installations where a reliable means of disconnecting a substantial three-phase supply is required. Its 400 A rating makes it relevant to industrial distribution boards, machinery supply circuits and commercial electrical infrastructure, provided that the load characteristics and operational ratings are compatible with the selected switch.
The 3P+N arrangement is particularly relevant to three-phase systems that include a neutral conductor. However, the designation alone should not be used to assume that the neutral is switched, permanently connected or operated with a particular sequence. These details must be established from the manufacturer's connection diagram and the requirements of the electrical installation.
The IP65 steel enclosure provides a protected housing for the internal switching components. When correctly assembled and installed, IP65 protection means that the enclosure is dust-tight and resistant to water jets. This can be valuable in industrial plant rooms, manufacturing facilities and other locations where equipment may be exposed to dust or occasional water spray.
Correct cable entry preparation is essential to maintaining the enclosure's protection rating. Cable glands, seals and any additional enclosure penetrations must be suitable for the cable dimensions, environmental conditions and installation method. The enclosure should also be mounted securely with adequate space for cable termination and safe operation.
The switch disconnector can form part of a controlled electrical isolation procedure during machinery servicing or electrical maintenance. Isolation must be carried out by competent personnel, using appropriate lockout arrangements where provided and verifying the absence of voltage before work begins.
The OT400TPN-A is not a circuit breaker or fused switch. Its primary purpose is manual switching and disconnection rather than automatic fault interruption. Suitable overload and short-circuit protection must therefore be provided separately, with the overall system designed to meet the applicable electrical standards and fault-level requirements.
Typical Applications
- 400 A industrial electrical distribution circuits.
- Three-phase and neutral supply isolation.
- Commercial building electrical distribution.
- Industrial machinery supply disconnection.
- Manufacturing and production facilities.
- Electrical plant rooms and switchrooms.
- Industrial motor feeder installations, subject to switching-duty ratings.
- Heating, ventilation and air conditioning plant supplies.
- Large pumping and water treatment installations.
- Process control and automation equipment supplies.
- Industrial maintenance isolation points.
- Electrical sub-distribution installations.
- OEM machinery and electrical equipment assemblies.
- Facilities requiring IP65 enclosed electrical switching equipment.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | Enclosed switch disconnector | |
|---|---|---|
| Material | Steel |
Frequently Asked Questions
What is the ABB OT400TPN-A used for?
The ABB OT400TPN-A is a 400 A 3P+N steel enclosed switch disconnector used for manual electrical switching and isolation in suitable industrial and commercial three-phase power distribution installations.
What is the current rating of the ABB OT400TPN-A?
The OT400TPN-A has a 400 A nominal current rating. The permissible switching duty must be confirmed against ABB's operational current and utilisation-category specifications for the intended voltage and load.
What does 3P+N mean on the ABB OT400TPN-A?
3P+N means three poles plus neutral. It identifies an arrangement intended for three-phase electrical systems with a neutral connection. The exact neutral switching or termination arrangement should be verified using ABB's model-specific wiring diagram.
Is the ABB OT400TPN-A a four-pole switch?
The manufacturer designation is 3P+N, rather than simply 4P. This distinction can be important because a neutral connection arrangement is not necessarily identical to four equivalent switched poles. Consult ABB's technical documentation to confirm how the neutral is connected or disconnected.
What is the IP rating of the ABB OT400TPN-A?
The OT400TPN-A has an IP65-rated enclosure. When correctly installed, this provides protection against dust ingress and water jets. Appropriate cable glands and seals are required to preserve the specified protection rating.
What material is the ABB OT400TPN-A enclosure made from?
The OT400TPN-A is supplied in a steel enclosure, providing a durable housing for the switch-disconnector assembly in suitable industrial and commercial installations.
Does the ABB OT400TPN-A provide short-circuit protection?
No. The OT400TPN-A is a switch disconnector, not a circuit breaker or fused switch. Suitable protective devices must be provided separately to protect the circuit against overload and short-circuit conditions.
Can the ABB OT400TPN-A be used for machinery isolation?
Yes, where its electrical ratings and installation configuration are suitable. The OT400TPN-A can provide a manual isolation point for machinery supply circuits, but the complete installation must meet the applicable electrical safety and isolation requirements.
Is the ABB OT400TPN-A suitable for outdoor installation?
Its IP65 steel enclosure offers protection against dust and water jets. Outdoor suitability also depends on corrosion resistance, exposure conditions, cable entry sealing and the manufacturer's installation requirements. IP65 alone does not establish suitability for every outdoor environment.
What is the difference between a switch disconnector and a switch fuse?
A switch disconnector provides manual switching and isolation. A switch fuse incorporates fuse links that can provide overcurrent and short-circuit protection when correctly selected. The ABB OT400TPN-A is specified as a switch disconnector and requires separate circuit protection.
What should be checked before installing the ABB OT400TPN-A?
Installers should confirm the rated operational voltage, utilisation category, neutral arrangement, terminal capacity, cable entry provisions, enclosure dimensions and protective device coordination against ABB's current model-specific documentation and the installation design.
What is the ABB order code for the 400A 3P+N steel enclosed switch disconnector?
The ABB order code is OT400TPN-A. It is specified as a 400 A 3P+N steel enclosed switch disconnector with IP65 protection and belongs to ABB product group 311019-Metal Enclosed (Loadbreak).
Reliable Electrical Isolation for Industrial and Commercial Power Distribution
The ABB OT400TPN-A combines a 400 A nominal current rating, three-pole plus neutral configuration and robust IP65 steel enclosure in a practical industrial switch-disconnector assembly. Designed for professionally specified low-voltage electrical installations, it provides a dependable manual isolation solution for three-phase distribution systems where durability, accessibility and controlled disconnection are essential.
