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abb Automatic transfer switch 1250 amps with 4 Poles
ABB OTM1250E4C2D230C automatic transfer switch with 1250 A rating, 4 pole switching and 230 V AC motor operation for critical power distribution systems.
Why Choose the ABB OTM1250E4C2D230C Automatic Transfer Switch?
The ABB OTM1250E4C2D230C is a high-performance automatic transfer switch (ATS) designed for reliable power source changeover in industrial, commercial and critical power distribution systems. As part of the advanced ABB OTM motorised change-over switch series, it provides dependable automatic transfer between normal and backup power supplies to help maintain electrical continuity.
This motorised transfer switch combines robust switching capability with automatic operation, making it suitable for generator backup systems, industrial installations and electrical distribution networks where reliable source transfer is essential. The ABB OTM series is designed for safe operation, long service life and straightforward integration into switchboards and control panels.
With a rated operational current of 1250 A, a 4-pole configuration and a 220–240 V AC motor operating voltage, the ABB OTM1250E4C2D230C is suitable for large-scale power distribution applications requiring automatic mains-to-generator or source changeover functionality.
Key Advantages
- Heavy-duty automatic transfer switch for critical power applications.
- 1250 A rated current capacity for high-power installations.
- 4-pole switching configuration for complete source isolation including neutral.
- Reliable motorised automatic change-over operation.
- Suitable for mains-to-generator and dual power source systems.
- Designed for integration into industrial switchboards and power distribution panels.
Key Features
- ABB OTM automatic transfer switch series.
- Model: OTM1250E4C2D230C.
- 1250 A rated operational current.
- 4-pole automatic transfer switching.
- 220–240 V AC motor operator supply.
- Open transition switching design.
- Motorised operation with manual emergency operation capability.
- Suitable for generator backup and critical power systems.
- Base-mounted design for electrical switchboards.
Reliable Automatic Power Transfer for Critical Systems
Automatic transfer switches such as the ABB OTM1250E4C2D230C monitor available power sources and enable rapid transfer between supplies when interruptions occur. This helps reduce downtime and supports continuous operation of essential electrical loads.
The ABB OTM range is widely used by power engineers, panel builders and industrial contractors requiring dependable source transfer, high current capability and safe operation in demanding electrical environments.
Typical Applications
- Generator backup power systems.
- Industrial power distribution systems.
- Data centres and critical infrastructure.
- Manufacturing facilities.
- Commercial electrical installations.
- Main switchboards and automatic changeover panels.
Technical Specifications
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| Mounting Type | Base mounting | |
|---|---|---|
| Operation | Automatic | |
| Device Type | Automatic transfer switch | |
| Poles | 4-pole | |
| Manufacturer | ABB | |
| Series | OTM Automatic Transfer Switches | |
| Model | OTM1250E4C2D230C | |
| Manufacturer part number | 1SCA112857R1001 | |
| Product type | Automatic transfer switch | |
| Rated operational current | 1250 A | |
| Number of poles | 4P | |
| Motor operating voltage | 220–240 V AC | |
| Rated insulation voltage | 1000 V AC | |
| Rated operational voltage | Up to 1000 V AC | |
| Frequency | 50 / 60 Hz | |
| Transition type | Open transition | |
| Short-time withstand current | 50 kA for 1 s | |
| Mounting type | Base mounting | |
| Protection rating | IP20 front protection | |
| Dimensions (H × W × D) | approx. 306 × 587 × 297 mm | |
| Weight | approx. 65 kg |
Frequently Asked Questions
What is the ABB OTM1250E4C2D230C used for?
The ABB OTM1250E4C2D230C is an automatic transfer switch used to transfer electrical loads between normal and backup power sources such as mains supplies and generators.
What current rating does this transfer switch support?
The switch supports a rated operational current of 1250 A for high-power electrical installations.
How many poles does the ABB OTM1250E4C2D230C have?
The unit features a 4-pole switching configuration for complete source switching applications.
What motor supply voltage is required?
The motorised operating mechanism requires a 220–240 V AC supply.
Where is this automatic transfer switch installed?
The ABB OTM1250E4C2D230C is typically installed in industrial switchboards, generator panels and commercial power distribution systems.
Trusted for Critical Power Applications
ABB OTM automatic transfer switches are used by electrical engineers and system integrators worldwide to provide reliable power source transfer and continuity for demanding installations.
