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OTM630E3CM24D ABB 630A 3-Pole Motorised Changeover Switch 24V DC
ABB OTM630E3CM24D is a 630 A three-pole I-0-II open-transition motorised changeover switch with a 24 V DC motor operator for industrial and commercial electrical power source transfer applications.
£4,129.44
Why Choose the ABB OTM630E3CM24D Motorised Changeover Switch?
The ABB OTM630E3CM24D is a heavy-duty 630 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 high-current switching performance with an integrated motor operator for remote source selection in industrial and commercial electrical distribution systems.
The OTM630E3CM24D uses an I-0-II open-transition arrangement, providing source I, disconnected 0 and source II positions while preventing simultaneous connection of the two sources. ABB supplies the switch with a handle for manual operation, terminal bolt hardware and male connectors for the control circuits, providing both motorised and local operating capability.
With a rated current of 630 A, a three-pole configuration and a 24 V DC motor operating voltage, the OTM630E3CM24D is suited to mains/generator transfer, standby power distribution and alternative supply selection. Its AC-23A rating reaches 630 A at 380–415 V, with rated operational power of 355 kW at 400 V.
Key Advantages
- Heavy-duty 630 A motorised changeover switch for high-current power distribution.
- Three-pole configuration suited to three-phase source-transfer systems.
- 24 V DC motor operator enables remote electrical source selection.
- I-0-II open-transition operation provides a defined disconnected position between the two sources.
- Integrated motor drive provides dependable remote switching capability.
- Manual operating handle provides local control when required.
- 355 kW AC-23A rated operational power at 400 V for demanding electrical loads.
Key Features
- ABB OT motorised changeover switch range.
- 630 A rated current.
- 3-pole switching configuration.
- 24 V DC motor operating voltage.
- I-0-II open-transition switching.
- 630 A AC-21A / AC-22A rated operational current at 380–690 V.
- 630 A AC-23A rated operational current at 380–690 V.
- 355 kW AC-23A rated operational power at 400 V.
- 1000 V rated operational and insulation voltage.
- 12 kV rated impulse withstand voltage.
- 20 kA RMS short-time withstand current for 1 s.
- IP20 front protection.
Reliable Motorised Power Source Changeover
Motorised changeover switches such as the ABB OTM630E3CM24D provide a controlled method of transferring electrical loads between two independent power sources. The I-0-II open-transition arrangement introduces a disconnected position between source I and source II, preventing the two supplies from being simultaneously connected during normal changeover operation.
The integrated 24 V DC motor operator enables remote switching from a suitable transfer-control or power-management system, while the direct-mounted manual handle provides local operating capability. Combined with its 630 A current rating and three-pole construction, this makes the OTM630E3CM24D suitable for demanding three-phase source-transfer applications.
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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| Mounting Type | Base mounting | |
|---|---|---|
| Device Type | Motorised changeover switch | |
| Operation | Motorised | |
| Series | OT Motorised Changeover Switches | |
| ABB product ID | 1SCA022873R1210 | |
| Product type | Motorised changeover switch | |
| Rated current | 630 A | |
| Number of poles | 3 | |
| Motor operating voltage | 24 V DC | |
| Operating sequence | I-0-II | |
| Transition type | Open transition | |
| Rated operational current AC-21A | 630 A at 380–690 V | |
| Rated operational current AC-22A | 630 A at 380–690 V | |
| Rated operational current AC-23A | 630 A at 380–690 V | |
| Rated operational power AC-23A at 220–240 V | 200 kW | |
| Rated operational power AC-23A at 400 V | 355 kW | |
| Rated operational power AC-23A at 500 V | 400 kW | |
| Rated operational power AC-23A at 690 V | 630 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) | 20 kA RMS for 1 s | |
| Conventional free-air thermal current | 630 A at 40 °C | |
| Fully enclosed thermal current | 630 A | |
| Protection rating | IP20 front | |
| Mounting type | Base mounting | |
| Operating mode | Front operation | |
| Operating mechanism | Mechanism at end of switch | |
| Manual operation | Direct-mounted handle | |
| Terminal bolt kit | M12 × 40 | |
| Dimensions (H × W × D) | 250 × 411 × 299 mm | |
| Weight | 22 kg |
Frequently Asked Questions
What is the ABB OTM630E3CM24D used for?
The ABB OTM630E3CM24D is used for motorised changeover between two electrical power sources, including mains/standby and mains/generator arrangements in industrial and commercial power distribution systems.
What is the rated current of the OTM630E3CM24D?
The OTM630E3CM24D has a rated current of 630 A.
How many poles does the ABB OTM630E3CM24D have?
The OTM630E3CM24D has a three-pole configuration, making it suitable for switching three-phase electrical power circuits.
What motor operating voltage does the OTM630E3CM24D use?
The integrated motor operator is designed for a 24 V DC supply.
What is the AC-23A power rating of the OTM630E3CM24D?
The OTM630E3CM24D is rated at 355 kW at 400 V under AC-23A, with ratings of 200 kW at 220–240 V, 400 kW at 500 V and 630 kW at 690 V.
Does the ABB OTM630E3CM24D use open-transition switching?
Yes. The OTM630E3CM24D uses an I-0-II open-transition arrangement, providing a disconnected 0 position between the two source positions.
Trusted by Electrical Distribution Professionals Worldwide
ABB OT motorised changeover switches are designed for dependable power source transfer, combining robust high-current switching, integrated motor operation and manual control capability for industrial and commercial electrical distribution systems.
