ABB OTM1250E4C3D230C automatic transfer switch with 1250 A rating, 4-pole switching configuration and 230 V AC motor operation for industrial and commercial power transfer systems.
£12,651.68
The ABB OTM1250E4C3D230C is a robust and intelligent automatic transfer switch (ATS) designed for dependable source switching in critical industrial and commercial power systems. As part of the advanced ABB OTM motorised change-over switch series, this unit provides automatic transfer between mains and standby power supplies to ensure continuous operation of essential electrical loads.
Built for demanding environments, the OTM series combines high switching performance with compact construction and reliable motorised operation. It is engineered to support uninterrupted power availability in generator systems, industrial facilities, commercial buildings and infrastructure installations where operational continuity is essential.
Featuring a 1250 A operational current rating, 4-pole configuration and a 230 V AC motor operating mechanism, the OTM1250E4C3D230C delivers safe and efficient power source transfer for large-scale low voltage distribution systems. Its motorised mechanism simplifies automatic operation while supporting manual override functionality for maintenance and emergency use.
Automatic transfer switches such as the ABB OTM1250E4C3D230C are designed to maintain power continuity by automatically transferring electrical loads between available power sources. This helps protect operations against power interruptions and ensures reliable operation of critical systems and infrastructure.
The ABB OTM series is widely used in industrial automation, commercial buildings and backup generator systems where dependable source switching is essential. Its motorised operating mechanism and robust switching design provide reliable performance under demanding operating conditions.
| Current | 1250 A |
|---|---|
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | OTM Automatic Transfer Switches |
| Product type | Automatic transfer switch |
| Rated operational current | 1250 A |
| Number of poles | 4P |
| Motor operating voltage | 220–240 V AC |
| Rated operational voltage | up to 1000 V AC |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 front protection |
| Mounting type | Base mounting |
| Operation type | Motorised automatic operation |
| Transition type | Open transition |
| Short-time withstand current | 50 kA for 1 second |
| Dimensions (H × W × D) | approx. 306 × 587 × 297 mm |
| Weight | approx. 65 kg |
This automatic transfer switch is used to transfer electrical loads automatically between mains and backup power supplies such as generators.
The switch is rated for 1250 A, making it suitable for high power industrial and commercial applications.
The motorised operating mechanism uses a 220–240 V AC supply.
Yes. Its 4-pole configuration enables switching of all conductors including the neutral line.
The unit is commonly installed in industrial switchboards, generator control panels and commercial power distribution systems.
ABB OTM automatic transfer switches are trusted worldwide for reliable source transfer operation, high electrical performance and dependable operation in critical power applications.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...