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abb Automatic transfer switch 1250 amps with 3 Poles
ABB OTM1250E3C8D230C automatic transfer switch with 1250 A rating, 3 pole switching and OMD800 controller designed for industrial standby power applications.
Why Choose the ABB OTM1250E3C8D230C Automatic Transfer Switch?
The ABB OTM1250E3C8D230C is a high-capacity automatic transfer switch (ATS) designed for dependable automatic switching between two electrical power sources in industrial, commercial and critical power applications. As part of the advanced ABB OTM_C automatic transfer switch series, it provides reliable standby power transfer for generator systems, emergency power installations and high-current electrical distribution networks.
This motor-operated transfer switch combines robust high-current switching with integrated automatic transfer control through the ABB OMD800 controller with LCD keypad. Its open transition I-0-II switching arrangement enables controlled transfer between normal and standby supplies while maintaining reliable operation in demanding electrical environments.
With a rated operational current of 1250 A, a 3-pole switching configuration and a 230 V AC motor operating voltage, the ABB OTM1250E3C8D230C is suitable for large-scale power distribution systems requiring automatic source transfer and high-current switching performance.
Key Advantages
- Reliable automatic transfer switch for critical power systems.
- 1250 A operational current rating for high-power installations.
- 3-pole motor-operated switching mechanism.
- Integrated OMD800 ATS controller with LCD keypad.
- Open transition I-0-II switching for secure source transfer.
- Suitable for industrial infrastructure and standby generator systems.
Key Features
- ABB OTM_C automatic transfer switch series.
- 1250 A rated operational current.
- 3-pole changeover switching configuration.
- 230 V AC motor operating voltage.
- OMD800 integrated automatic transfer controller.
- Integrated voltage sensing for source monitoring.
- Open transition I-0-II operation.
- Manual operating handle included.
- Panel mounting design for industrial installations.
Reliable Automatic Power Transfer for Industrial Infrastructure
Automatic transfer switches such as the ABB OTM1250E3C8D230C continuously monitor electrical supply sources and automatically transfer loads between primary and standby power supplies during mains failure conditions. This helps maintain continuity for critical systems while reducing downtime risks in industrial and commercial installations.
The ABB OTM_C transfer switch range is engineered for demanding electrical environments requiring dependable high-current switching, robust construction and intelligent automatic source management. Its integrated OMD800 controller provides advanced transfer functionality for generator systems and dual-supply networks.
Typical Applications
- Large standby generator systems.
- Industrial manufacturing facilities.
- Critical infrastructure power systems.
- Commercial and data centre installations.
- Hospitals and essential service facilities.
- High-current electrical distribution systems.
Technical Specifications
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| Mounting Type | Panel / door | |
|---|---|---|
| Operation | Automatic | |
| Device Type | Automatic transfer switch | |
| Poles | 3-pole | |
| Manufacturer | ABB | |
| Series | OTM_C Automatic Transfer Switches | |
| Model | OTM1250E3C8D230C | |
| Product type | Automatic transfer switch | |
| Operational current AC-21A | 1250 A | |
| Operational current AC-22A | 1250 A | |
| Operational current AC-23A | 1250 A | |
| Number of poles | 3P | |
| Motor operating voltage | 230 V AC | |
| Rated operational voltage | Up to 1000 V | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 12 kV | |
| Short-time withstand current | 50 kA for 1 s | |
| Transition type | Open transition I-0-II | |
| Controller type | OMD800 with LCD keypad | |
| Operating mechanism | Motor-operated | |
| Mounting type | Panel mounting | |
| Protection rating | Front IP20 | |
| Terminal type | Screw terminals | |
| Dimensions (W × H × D) | approx. 587 × 400 × 317 mm | |
| Weight | approx. 66 kg | |
| Standards | IEC 60947-3 |
Frequently Asked Questions
What is the ABB OTM1250E3C8D230C used for?
The ABB OTM1250E3C8D230C is used to automatically transfer electrical loads between two power sources, such as utility mains and standby generators.
What current rating does the OTM1250E3C8D230C support?
The switch supports a 1250 A operational current rating for high-power industrial and commercial applications.
What controller is integrated into this ATS?
The unit includes an integrated ABB OMD800 automatic transfer switch controller with LCD keypad for source monitoring and transfer management.
What type of switching configuration does this ATS use?
The OTM1250E3C8D230C uses a 3-pole open transition I-0-II switching configuration.
What applications is the OTM1250E3C8D230C suitable for?
The switch is suitable for industrial plants, standby generator systems, critical infrastructure and high-current power continuity applications.
Trusted by Power Distribution Engineers Worldwide
ABB OTM automatic transfer switches provide reliable automatic source transfer, high-current switching performance and dependable standby power continuity for critical electrical systems.
