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OTM400E3CM110V ABB 400A 3-Pole Motorised Changeover Switch 110V AC
ABB OTM400E3CM110V is a 400 A three-pole open-transition motorised changeover switch with a 110–125 V AC/DC motor operator for industrial and commercial electrical power source transfer applications.
£2,143.64
Why Choose the ABB OTM400E3CM110V Motorised Changeover Switch?
The ABB OTM400E3CM110V is a heavy-duty 400 A three-pole motorised changeover switch designed for controlled transfer between two electrical power sources. As part of the ABB OT motorised changeover switch range, it combines robust high-current switching with an integrated motor operator for remote source selection in industrial, commercial and infrastructure power distribution systems.
The OTM400E3CM110V provides open-transition changeover operation, disconnecting one source before the alternative source is connected. Its integrated motor operator enables remote electrical switching, while the direct-mounted handle provides manual operating capability when required for commissioning, maintenance or local control.
With a rated current of 400 A, a three-pole configuration and a 110–125 V AC/DC motor operating voltage, the OTM400E3CM110V is suitable for mains/generator changeover, standby power systems and alternative supply selection. The switch offers an AC-23A rated operational power of 220 kW at 400 V and is designed for dependable integration into electrical distribution assemblies.
Key Advantages
- Heavy-duty 400 A motorised changeover switch for high-current electrical distribution.
- Three-pole configuration designed for three-phase power circuits.
- 110–125 V AC/DC motor operator enables remote electrical source selection.
- Open-transition operation disconnects one supply before connecting the alternative source.
- Direct-mounted manual handle provides local operating capability.
- 220 kW AC-23A rated operational power at 400 V.
- Robust ABB OT construction for integration into switchboards and power-transfer systems.
Key Features
- ABB OT motorised changeover switch range.
- 400 A rated current.
- 3-pole switching configuration.
- 110–125 V AC/DC motor operating voltage.
- Open-transition changeover operation.
- 400 A AC-21A and AC-22A rated operational current.
- 400 A AC-23A rated operational current at 380–415 V.
- 220 kW AC-23A rated operational power at 400 V.
- 1000 V rated operational and insulation voltage.
- 12 kV rated impulse withstand voltage.
- 15 kA RMS short-time withstand current for 1 s.
- Handle supplied for manual operation.
Reliable Motorised Power Source Changeover
Motorised changeover switches such as the ABB OTM400E3CM110V provide a controlled method of transferring electrical loads between two independent power sources. The open-transition arrangement disconnects the active source before connecting the alternative supply, maintaining separation between the sources during the transfer process.
The integrated 110–125 V AC/DC motor operator enables remote switching from an appropriate transfer-control or power-management system, while the supplied manual handle allows local operation when required. This combination makes the OTM400E3CM110V suitable for three-phase installations requiring dependable high-current source selection with both motorised and manual operating capability.
Typical Applications
- Mains and generator power source changeover systems.
- Standby and emergency power distribution.
- Industrial electrical switchboards.
- Commercial building power distribution systems.
- Alternative supply selection systems.
- Three-phase power transfer installations requiring remote motorised operation.
Technical Specifications
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| Operation | Motorised | |
|---|---|---|
| Device Type | Motorised changeover switch | |
| Series | OT Motorised Changeover Switches | |
| ABB product ID | 1SCA022847R1550 | |
| Product type | Motorised changeover switch | |
| Rated current | 400 A | |
| Number of poles | 3 | |
| Motor operating voltage | 110–125 V AC/DC | |
| Transition type | Open transition | |
| Rated operational current AC-21A | 400 A | |
| Rated operational current AC-22A | 400 A | |
| Rated operational current AC-23A at 380–415 V | 400 A | |
| Rated operational power AC-23A at 220–240 V | 132 kW | |
| Rated operational power AC-23A at 400 V | 220 kW | |
| Rated operational power AC-23A at 500 V | 280 kW | |
| Rated operational power AC-23A at 690 V | 400 kW | |
| Rated operational voltage | 1000 V | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 12 kV | |
| Rated short-time withstand current (Icw) | 15 kA RMS for 1 s | |
| Conventional free-air thermal current | 400 A at 40 °C | |
| Fully enclosed thermal current | 400 A | |
| Operating mechanism | Mechanism at end of switch | |
| Line terminal arrangement | Top in / bottom out | |
| Manual operation | Handle supplied | |
| Dimensions (H × W × D) | 185 × 323 × 235 mm | |
| Weight | approx. 11.1 kg |
Frequently Asked Questions
What is the ABB OTM400E3CM110V used for?
The ABB OTM400E3CM110V is used for motorised changeover between two electrical power sources in industrial, commercial and standby power distribution systems.
What is the rated current of the OTM400E3CM110V?
The OTM400E3CM110V has a rated current of 400 A.
How many poles does the ABB OTM400E3CM110V have?
The OTM400E3CM110V has a three-pole configuration designed for switching three-phase electrical power circuits.
What motor operating voltage does the OTM400E3CM110V use?
The integrated motor operator is designed for a 110–125 V AC/DC supply.
What is the AC-23A power rating of the OTM400E3CM110V?
The OTM400E3CM110V has an AC-23A rated operational power of 220 kW at 400 V, with ratings of 132 kW at 220–240 V, 280 kW at 500 V and 400 kW at 690 V.
Is the ABB OTM400E3CM110V an open-transition changeover switch?
Yes. The OTM400E3CM110V provides open-transition switching, so the active source is disconnected before the alternative power source is connected.
Trusted by Electrical Distribution Professionals Worldwide
ABB OT motorised changeover switches are widely used in electrical distribution applications requiring dependable source transfer, combining robust switching performance, remote motorised operation and manual operating capability.
