ABB OTM630E4C8D230C automatic change-over switch, a 630 A 4-pole motorised transfer switch designed for industrial and commercial backup power transfer systems.
£10,607.73
The ABB OTM630E4C8D230C is a heavy-duty automatic change-over switch designed for reliable power transfer between primary and backup power supplies in critical industrial and commercial installations. As part of the trusted ABB OTM motorised transfer switch series, it delivers dependable switching performance for applications requiring uninterrupted power continuity and automatic source transfer.
This motorised switch-disconnector combines robust switching technology with intelligent automatic transfer functionality, helping protect electrical systems during mains failures or supply interruptions. The integrated automatic transfer system allows seamless switching between utility and generator supplies while maintaining high operational safety and reliability.
With a rated operational current of 630 A, a 4-pole configuration, and 230 V AC motor operation voltage, the OTM630E4C8D230C is ideal for industrial switchboards, generator systems, critical infrastructure and commercial facilities requiring secure automatic power transfer. Its open transition design ensures reliable and efficient source switching in demanding power distribution environments.
Automatic change-over switches such as the ABB OTM630E4C8D230C are designed to ensure reliable transfer between power sources during supply interruptions. They are widely used in generator backup systems, industrial facilities and mission-critical infrastructure where maintaining electrical continuity is essential.
The OTM series integrates advanced motorised switching mechanisms with ABB’s proven switch-disconnector technology, providing secure operation, long service life and dependable switching performance in demanding power distribution applications.
| Current | 630 A |
|---|---|
| Phase | Three Phase |
| IP Rating | IP00 |
| Series | OTM Automatic Change-Over Switches |
| Product type | Automatic change-over switch |
| Rated operational current | 630 A |
| Number of poles | 4-pole |
| Rated operational voltage | up to 1000 V AC |
| Motor operating voltage | 230 V AC |
| Transition type | Open transition |
| Rated insulation voltage | 1000 V |
| Rated impulse withstand voltage | 12 kV |
| Rated short-time withstand current | 20 kA for 1 second |
| Mounting type | Base mounted |
| Protection rating | IP00 front protection |
| Mechanical durability | approx. 10,000 operations |
| Standards | IEC 60947-3 |
| Dimensions (H × W × D) | approx. 357 × 476 × 299 mm |
| Weight | approx. 37 kg |
This automatic change-over switch transfers electrical loads between primary and backup power supplies such as utility mains and generator systems.
The switch is rated for 630 A operation in industrial and commercial power distribution systems.
The OTM630E4C8D230C uses an open transition switching method for transferring between power sources.
Yes, the unit includes an integrated motor operator enabling automatic source transfer functionality.
The switch is typically installed in industrial switchboards, generator transfer panels and commercial power distribution systems.
ABB OTM automatic transfer switches are trusted by electrical engineers, panel builders and industrial operators for dependable source transfer, robust construction and long-term operational reliability.
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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...