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abb Automatic transfer switch 250 amps with 4 Poles
ABB OTM250E4C8D230C automatic transfer switch with 250 A rated current, 4-pole configuration and OMD800 controller designed for reliable power source changeover applications.
Why Choose the ABB OTM250E4C8D230C Automatic Transfer Switch?
The ABB OTM250E4C8D230C is a high-performance automatic transfer switch (ATS) designed for reliable automatic switching between two power sources in industrial, commercial and critical power applications. As part of the advanced ABB OTM automatic transfer switch series, it provides dependable source changeover operation to maintain electrical supply continuity during mains failures or power interruptions.
This automatic change-over switch combines a robust switching mechanism with an integrated motor operator and an OMD800 controller for advanced automatic transfer management. The compact design includes voltage sensing functionality and enables seamless integration into generator systems, standby power installations and modern electrical distribution assemblies.
With a rated current of 250 A, a 4-pole configuration and a motor operator supply voltage of 220–240 V AC, the ABB OTM250E4C8D230C is suitable for automatic mains-to-generator transfer systems, industrial switchboards and commercial backup power applications.
Key Advantages
- Reliable automatic transfer switching between two independent power sources.
- 250 A rated operational current for industrial and commercial installations.
- 4-pole switching configuration including neutral switching capability.
- Integrated 220–240 V AC motor operator for automatic operation.
- OMD800 LCD controller with keypad provides advanced transfer management.
- Suitable for generator, standby power and emergency supply systems.
Key Features
- ABB OTM automatic transfer switch series.
- 250 A rated operational current.
- 4-pole automatic change-over switching.
- ATS800 / OMD800 automatic controller system.
- 220–240 V AC motor operator voltage.
- Integrated voltage sensing kit.
- Open transition I-O-II switching operation.
- Manual emergency operating handle included.
Reliable Power Transfer for Critical Electrical Systems
Automatic transfer switches such as the ABB OTM250E4C8D230C monitor available power sources and automatically transfer electrical loads between primary and backup supplies when required. This helps maintain continuous operation and reduces downtime caused by mains supply interruptions.
The ABB OTM series is designed for electrical engineers and system integrators requiring dependable automatic switching solutions for industrial automation, commercial buildings and standby power installations. Its integrated controller, compact construction and high switching performance simplify modern power distribution designs.
Typical Applications
- Automatic mains failure (AMF) systems.
- Emergency generator changeover installations.
- Industrial power distribution panels.
- Commercial buildings and facilities.
- Data centres and critical infrastructure.
- Backup power and standby energy systems.
Technical Specifications
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| Mounting Type | Panel / door | |
|---|---|---|
| Device Type | Automatic transfer switch | |
| Operation | Automatic | |
| Coil / Supply Voltage | 220–240 V AC | |
| Poles | 4-pole | |
| Manufacturer | ABB | |
| Series | OTM Automatic Transfer Switches | |
| Model | OTM250E4C8D230C | |
| Product type | Automatic transfer switch | |
| Rated current | 250 A | |
| Number of poles | 4 poles | |
| Motor operator voltage | 220–240 V AC | |
| Controller | OMD800 LCD controller with keypad | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 12 kV | |
| Rated operational voltage | Up to 1000 V AC | |
| Rated operational power AC-23A | Up to 250 kW at 690 V | |
| Short-time withstand current | 8 kA for 1 s | |
| Mounting type | Base / panel mounting | |
| Protection rating | IP20 front protection | |
| Dimensions (H × W × D) | approx. 307 × 287 × 197 mm | |
| Weight | approx. 11 kg |
Frequently Asked Questions
What is the ABB OTM250E4C8D230C used for?
The ABB OTM250E4C8D230C is used for automatic switching between two power sources to maintain electrical supply continuity during power interruptions.
What current rating does the OTM250E4C8D230C support?
The automatic transfer switch supports a rated current of 250 A for industrial and commercial power transfer applications.
How many poles does this automatic transfer switch have?
The ABB OTM250E4C8D230C features a 4-pole switching configuration.
What controller is included with this transfer switch?
The switch includes an OMD800 LCD controller with keypad for automatic transfer management and monitoring.
Where is this transfer switch typically installed?
The OTM250E4C8D230C is typically installed in electrical distribution panels for generator, standby power and critical power applications.
Trusted by Electrical Engineers Worldwide
ABB OTM automatic transfer switches are widely used in industrial and commercial power systems to provide reliable source transfer, improved power availability and dependable operation in critical electrical installations.
