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OTM250E3CM110V ABB 250 A 3-Pole Motorised Changeover Switch 110–125 V AC/DC
ABB OTM250E3CM110V is a 250 A 3-pole motorised open-transition changeover switch with 110–125 V AC/DC motor operation for industrial and commercial three-phase power transfer applications.
£2,083.98
Why Choose the ABB OTM250E3CM110V Motorised Changeover Switch?
The ABB OTM250E3CM110V is a robust motorised changeover switch designed for reliable transfer between alternative electrical power sources in industrial and commercial low-voltage distribution systems. As part of the ABB OT motorised changeover switch range, it combines a 250 A current rating with electrically operated source changeover for dependable three-phase power switching.
This three-pole switch provides open-transition changeover operation, allowing electrical loads to be transferred between two alternative supplies with source separation during switching. Its integrated motor drive enables remote electrical operation, while the supplied handle provides manual operating capability when local switching is required.
With a rated current of 250 A, a 3-pole configuration and a 110–125 V AC/DC motor operating voltage, the OTM250E3CM110V is well suited to mains and standby power systems, generator changeover arrangements and industrial distribution switchboards. Its 170 kVA rating at 400 V provides substantial switching capacity for three-phase power distribution applications.
Key Advantages
- Robust motorised changeover switch for three-phase power distribution.
- 250 A rated current for industrial and commercial installations.
- 3-pole configuration for three-phase source changeover.
- 110–125 V AC/DC motor operating voltage provides flexible control-power compatibility.
- Open-transition operation for controlled transfer between alternative supplies.
- Integrated motor drive enables remote electrical operation.
- Manual operating handle and installation hardware supplied for practical switchboard integration.
Key Features
- ABB OT motorised changeover switch range.
- 250 A rated current.
- 3-pole switching configuration.
- 110–125 V AC/DC motor operating voltage.
- 170 kVA rated power at 400 V.
- 250 / 250 A AC-31B / AC-33B rating at 415 V.
- 140 kW AC-23 operational power at 400 V.
- 1000 V maximum rated operational voltage.
- 8 kA short-time withstand current.
- IP20 front protection rating.
Reliable Motorised Power Changeover
Motorised changeover switches allow electrical loads to be transferred between alternative power sources through electrical control rather than requiring routine manual switching at the switchboard. The ABB OTM250E3CM110V combines an integrated motor drive with open-transition switching for controlled source selection in three-phase low-voltage distribution systems.
The switch is supplied with a handle for manual operation, a bolt kit with nuts and washers for all terminals and male connectors for the control circuits. A storage clip for the operating handle and spare fuses are also included, supporting straightforward installation and maintenance.
Typical Applications
- Main and standby power supply changeover systems.
- Generator and mains supply switching installations.
- Industrial low-voltage distribution switchboards.
- Commercial building electrical distribution systems.
- Manufacturing and process plant power systems.
- Remote source-selection and transfer systems.
- Three-phase power distribution installations.
Technical Specifications
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| Operation | Motorised | |
|---|---|---|
| Device Type | Motorised changeover switch | |
| Series | OT Motorised Changeover Switches | |
| ABB product ID | 1SCA022845R9180 | |
| Product type | Motorised changeover switch | |
| Rated current | 250 A | |
| Number of poles | 3 | |
| Motor operating voltage | 110–125 V AC/DC | |
| Rated power at 400 V | 170 kVA | |
| Rated current AC-31B / AC-33B at 415 V | 250 / 250 A | |
| Rated operational power AC-23 at 400 V | 140 kW | |
| Maximum rated operational voltage | 1000 V AC | |
| Rated short-time withstand current | 8 kA | |
| Motor drive | Integrated | |
| Main circuit connection | Screw connection | |
| Protection rating | IP20 front | |
| Width | 273 mm | |
| Height | 150 mm | |
| Depth | 197 mm | |
| Weight | approx. 6.6 kg |
Frequently Asked Questions
What is the ABB OTM250E3CM110V used for?
The OTM250E3CM110V is a motorised changeover switch used to transfer three-phase electrical loads between alternative power sources in industrial and commercial low-voltage distribution systems.
What is the current rating of the OTM250E3CM110V?
The ABB OTM250E3CM110V has a rated current of 250 A.
How many poles does the OTM250E3CM110V have?
The OTM250E3CM110V has a 3-pole configuration designed for three-phase source changeover applications.
What motor operating voltage does the OTM250E3CM110V use?
The integrated motor operator is designed for a 110–125 V AC/DC operating supply.
Can the ABB OTM250E3CM110V be operated manually?
Yes. The switch is supplied with a handle for manual operation, providing local switching capability in addition to its integrated motorised operation.
Trusted ABB Power Switching Technology
ABB OT motorised changeover switches are engineered for dependable source transfer in industrial and commercial electrical distribution systems, combining robust switching performance with convenient motorised and manual operation.
