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abb Automatic transfer switch 400 amps with 4 Poles
ABB OTM400E4C2D230C automatic change-over switch, a 400 A four pole motorised transfer switch designed for reliable power source switching in industrial and commercial electrical systems.
Why Choose the ABB OTM400E4C2D230C Automatic Change-Over Switch?
The ABB OTM400E4C2D230C is a robust and reliable automatic change-over switch designed for transferring electrical loads between two power sources in critical power distribution and backup power applications. As part of the trusted ABB OTM400E4C automatic transfer switch series, it provides dependable source switching for industrial, commercial and infrastructure installations where continuity of supply is essential.
This motorised change-over switch combines ABB’s proven switching technology with automatic operation to simplify power source management. The OTM series is designed for applications requiring reliable transfer between mains and alternative power supplies, helping maintain electrical availability during supply interruptions.
With a rated operational current of 400 A, a four-pole switching configuration and a 230 V AC/DC motor operating voltage, the ABB OTM400E4C2D230C is suitable for high-current power distribution systems, standby generators and automatic transfer applications. Its compact enclosure design allows straightforward integration into electrical panels and switchboards.
Key Advantages
- Reliable automatic change-over switch for critical power applications.
- 400 A rated current capacity for demanding electrical installations.
- Four-pole switching design for complete circuit isolation and transfer.
- Motorised operation enables automatic source transfer.
- Suitable for mains, generator and backup power switching systems.
- Compact design for integration into electrical distribution assemblies.
Key Features
- ABB OTM400E4C automatic transfer switch series.
- 400 A conventional thermal current rating.
- Four-pole change-over switching.
- 230 V motor operating mechanism.
- Open transition switching operation.
- Direct-mounted operating handle design.
- Suitable for automatic and manual transfer applications.
- Designed for industrial power distribution and backup systems.
Reliable Power Transfer for Critical Electrical Systems
Automatic transfer switches such as the ABB OTM400E4C2D230C provide fast and dependable switching between available power sources. By automatically transferring loads when the primary supply becomes unavailable, they help improve system resilience and reduce downtime in essential electrical installations.
The ABB OTM series is designed for engineers and installers requiring reliable switching performance, easy integration and long service life. Its motorised mechanism and robust construction make it suitable for modern power distribution networks and standby power solutions.
Typical Applications
- Automatic mains failure (AMF) systems.
- Generator change-over applications.
- Industrial power distribution systems.
- Commercial buildings and infrastructure.
- Data centres and critical power installations.
- Switchboards and electrical control panels.
Technical Specifications
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| Mounting Type | Panel / door | |
|---|---|---|
| Device Type | Automatic transfer switch | |
| Operation | Automatic | |
| Poles | 4-pole | |
| Manufacturer | ABB | |
| Series | OTM400E4C Automatic Transfer Switches | |
| Model | OTM400E4C2D230C | |
| Product type | Automatic change-over switch | |
| Rated current | 400 A | |
| Number of poles | 4 | |
| Motor operating voltage | 230 V AC/DC | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 12 kV | |
| Rated operational voltage | up to 1000 V | |
| Rated short-time withstand current | 15 kA for 1 s | |
| Protection rating | IP20 | |
| Mounting type | Panel / switchboard mounting | |
| Dimensions (H × W × D) | approx. 325 × 367 × 235 mm | |
| Weight | approx. 15 kg |
Frequently Asked Questions
What is the ABB OTM400E4C2D230C used for?
The ABB OTM400E4C2D230C is used for automatic switching between two power sources in industrial, commercial and backup power systems.
What current rating does this change-over switch support?
The switch supports a rated current of 400 A for high-current power distribution applications.
How many poles does the ABB OTM400E4C2D230C have?
The unit features a four-pole switching configuration for reliable source transfer and isolation.
What motor voltage does this automatic transfer switch require?
The OTM400E4C2D230C uses a 230 V AC/DC motor operating voltage for automated switching operation.
Where is this switch typically installed?
The switch is typically installed inside electrical switchboards, distribution panels and critical power control systems.
Trusted by Power Distribution Engineers Worldwide
ABB OTM automatic transfer switches are widely used by electrical engineers and system integrators to provide reliable power source transfer, improved availability and dependable operation in critical electrical installations.
