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ABB OTM800E3CB8D230C automatic transfer switch, an 800 A three-pole motor-operated device designed for reliable automatic power source transfer in low-voltage systems.
The ABB OTM800E3CB8D230C is a heavy-duty motor-operated automatic transfer switch (ATS) designed for reliable transfer between primary and standby power sources in industrial and commercial electrical systems. As part of the advanced ABB OTM automatic transfer switch series, it provides dependable open transition switching for applications where continuous power availability is essential.
This automatic change-over switch combines ABB’s proven transfer switching technology with a robust motorised operating mechanism, enabling secure automatic switching between mains and generator supplies during power interruptions or planned source changes. Its durable construction and high current capability make it suitable for demanding low-voltage power distribution environments.
With a rated operational current of 800 A, a three-pole configuration and a 220–240 V AC motor operating supply, the OTM800E3CB8D230C is ideal for industrial switchboards, generator transfer systems, critical infrastructure and commercial power distribution installations requiring reliable automatic source transfer.
Automatic transfer switches such as the ABB OTM800E3CB8D230C are designed to maintain electrical supply continuity by automatically transferring loads between utility mains and standby power sources during outages or maintenance operations.
The ABB OTM range is trusted by electrical engineers, industrial operators and panel builders for reliable switching performance, integrated safety features and durable motor-operated transfer mechanisms. Its open transition operation provides controlled separation between asynchronous power sources during transfer cycles.
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| Mounting Type | Base mounting | |
|---|---|---|
| Device Type | Automatic transfer switch | |
| Operation | Automatic | |
| Poles | 3-pole | |
| Manufacturer | ABB | |
| Series | OTM Automatic Transfer Switches | |
| Model | OTM800E3CB8D230C | |
| Product type | Automatic change-over switch | |
| Rated operational current | 800 A | |
| Number of poles | 3 poles | |
| Rated operational voltage | up to 1000 V AC | |
| Motor operating voltage | 220–240 V AC | |
| Transition type | Open transition | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 12 kV | |
| Rated short-time withstand current | 20 kA rms for 1 second | |
| Protection rating | IP20 front | |
| Mounting type | Base mounting | |
| Dimensions (W × H × D) | approx. 411 × 357 × 299 mm | |
| Weight | approx. 34 kg |
This automatic change-over switch transfers electrical loads between mains and standby power supplies such as generator systems.
The switch is rated for 800 A operation in industrial and commercial power distribution systems.
The OTM800E3CB8D230C uses an open transition I-0-II switching method for automatic source transfer.
Yes, the unit includes a manual operating handle for maintenance, testing and local control.
The switch is commonly installed in industrial switchboards, generator transfer panels and critical backup power systems.
ABB OTM automatic transfer switches are trusted by engineers worldwide to provide reliable power source transfer, efficient electrical distribution control and dependable operation in critical applications.
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