Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
abb Automatic transfer switch 400 amps with 4 Poles
ABB OTM400E4C8D230C automatic change-over switch, a 400 A four pole motorised transfer switch designed for reliable automatic power source switching.
Why Choose the ABB OTM400E4C8D230C Automatic Change-Over Switch?
The ABB OTM400E4C8D230C is a reliable and robust automatic change-over switch designed for automatic transfer between two electrical power sources in industrial, commercial and critical power distribution systems. As part of the proven ABB OTM400E4C automatic transfer switch series, it provides dependable source switching for applications where maintaining power continuity is essential.
This motorised automatic transfer switch combines ABB’s advanced switching technology with reliable automatic operation to simplify power source management. The OTM series is engineered for installations requiring safe and efficient transfer between mains supplies, generators or alternative power sources, helping reduce downtime during power interruptions.
With a rated current of 400 A, a four-pole switching configuration and a 220–240 V AC motor operating voltage, the ABB OTM400E4C8D230C is suitable for high-current electrical distribution systems, standby generator applications and automatic transfer installations. Its compact base-mounted design allows straightforward integration into switchboards and control panels.
Key Advantages
- Reliable automatic transfer switch for critical power applications.
- 400 A rated current capacity for demanding electrical installations.
- Four-pole switching design for complete source transfer and isolation.
- Automatic operation with integrated motorised switching mechanism.
- Voltage sensing kit included for automatic transfer applications.
- Suitable for mains, generator and backup power systems.
Key Features
- ABB OTM400E4C automatic transfer switch series.
- 400 A rated operational current.
- Four-pole automatic change-over switching.
- 220–240 V AC motor operator voltage.
- Open transition I-O-II switching operation.
- Automatic operation with motorised mechanism.
- Integrated voltage sensing kit on the top of the switch.
- Manual operation handle included for maintenance procedures.
- Designed for electrical switchboards and distribution assemblies.
Reliable Power Transfer for Critical Electrical Systems
Automatic transfer switches such as the ABB OTM400E4C8D230C provide dependable switching between available power sources to maintain electrical supply during interruptions. By automatically transferring connected loads to an alternative source, they improve system resilience and help minimise operational downtime.
The ABB OTM series is designed for electrical engineers, panel builders and system integrators requiring reliable source transfer, simple installation and long-term performance. Its motorised mechanism, voltage sensing capability and robust construction make it suitable for modern power distribution networks.
Typical Applications
- Automatic mains failure (AMF) systems.
- Generator backup power installations.
- Industrial electrical distribution systems.
- Commercial buildings and infrastructure.
- Data centres and critical power environments.
- Electrical switchboards and control panels.
Technical Specifications
Tick the specs you need, then view products that match.
| Mounting Type | Base mounting | |
|---|---|---|
| Operation | Automatic | |
| Device Type | Automatic transfer switch | |
| Poles | 4-pole | |
| Manufacturer | ABB | |
| Series | OTM Automatic Transfer Switches | |
| Model | OTM400E4C8D230C | |
| Product type | Automatic change-over switch | |
| Rated current | 400 A | |
| Number of poles | 4 | |
| Motor operating voltage | 220–240 V AC | |
| Rated operational voltage | 1000 V | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 12 kV | |
| Rated short-time withstand current | 15 kA for 1 s | |
| Rated operational power AC-23A | 132 kW at 220–240 V, 220 kW at 400 V | |
| Protection rating | IP20 | |
| Mounting type | Base mounting | |
| Transition type | Open transition | |
| Dimensions (H × W × D) | approx. 325 × 367 × 235 mm | |
| Weight | approx. 15 kg |
Frequently Asked Questions
What is the ABB OTM400E4C8D230C used for?
The ABB OTM400E4C8D230C is used for automatic transfer between two power sources in industrial, commercial and backup power applications.
What current rating does this automatic transfer switch support?
The switch supports a rated current of 400 A for high-current electrical distribution systems.
How many poles does the ABB OTM400E4C8D230C have?
The unit features a four-pole switching configuration for reliable source transfer and isolation.
What motor voltage does this change-over switch require?
The OTM400E4C8D230C uses a 220–240 V AC motor operating voltage for automatic switching operation.
Where is this switch typically installed?
The switch is typically installed inside electrical switchboards, distribution assemblies 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 source transfer, improved power availability and dependable operation in critical electrical installations.
