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OTM40F4CMA24D ABB 40 A 4-Pole Motorised Changeover Switch 24 V DC
ABB OTM40F4CMA24D is a 40 A 4-pole motorised I-0-II open-transition changeover switch with 24 V DC motor operation for low-voltage power-source transfer applications.
£654.49
Why Choose the ABB OTM40F4CMA24D Motorised Changeover Switch?
The ABB OTM40F4CMA24D is a compact motorised changeover switch designed for reliable transfer between alternative electrical power sources in low-voltage distribution systems. Part of the ABB OT motorised changeover switch range, it combines a 40 A current rating with four-pole switching and a 24 V DC motor operator.
This switch provides I-0-II open-transition operation, giving two source positions separated by a defined OFF position. Its integrated motor drive enables remote electrical source selection, while the supplied handle provides manual operation when local control is required.
With a rated current of 40 A, a 4-pole configuration and a 24 V DC motor operating voltage, the OTM40F4CMA24D is suited to mains and standby power systems, generator changeover installations and compact distribution assemblies. Its four-pole configuration supports applications requiring simultaneous switching of four conductors.
Key Advantages
- Motorised I-0-II changeover switching for controlled power-source transfer.
- 40 A rated current for low-voltage distribution applications.
- 4-pole configuration for four-conductor source switching.
- 24 V DC motor operating voltage for integration with low-voltage DC control systems.
- Open-transition operation disconnects one source before connecting the alternative supply.
- Integrated motor drive supports convenient remote electrical operation.
- Manual operating handle, handle storage clip and control-circuit connectors supplied.
Key Features
- ABB OT motorised changeover switch range.
- 40 A rated current.
- 4-pole switching configuration.
- 24 V DC motor operating voltage.
- 27 kVA rated power at 400 V.
- 40 / 40 A AC-31B / AC-33B rating at 415 V.
- I-0-II open-transition operation.
- Handle supplied for manual operation.
- Storage clip supplied for the manual operating handle.
- Male connectors supplied for the control circuit.
Reliable Motorised Power Changeover
Motorised changeover switches allow electrical loads to be transferred between alternative power sources using electrical control rather than requiring routine manual switching at the distribution board. The ABB OTM40F4CMA24D combines an integrated 24 V DC motor drive with I-0-II open-transition switching for controlled source selection in low-voltage power distribution systems.
The switch is delivered with a handle for manual operation, a storage clip for the handle and connectors for the control circuit. Its compact four-pole construction and 24 V DC control arrangement make it practical for integration into distribution panels, generator transfer systems and remotely controlled source-selection assemblies.
Typical Applications
- Main and standby power supply changeover systems.
- Generator and mains supply switching installations.
- Industrial low-voltage distribution boards.
- Commercial building electrical distribution systems.
- Machinery and equipment power-source selection.
- Remote source-selection and transfer systems.
- Four-pole installations using 24 V DC control circuits.
Technical Specifications
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| Operation | Motorised | |
|---|---|---|
| Device Type | Motorised changeover switch | |
| Series | OT Motorised Changeover Switches | |
| ABB product ID | 1SCA124063R1001 | |
| Product type | Motorised changeover switch | |
| Rated current | 40 A | |
| Number of poles | 4 | |
| Switching positions | I-0-II | |
| Transition type | Open transition | |
| Motor operating voltage | 24 V DC | |
| Rated power at 400 V | 27 kVA | |
| Rated current AC-31B / AC-33B at 415 V | 40 / 40 A | |
| Cable cross-section | 2.5–25 mm² or 2 × 2.5–16 mm² | |
| Manual operating handle | OTV65D6CM | |
| Included accessories | Manual handle, handle storage clip and control-circuit connectors | |
| Product net weight | 1.86 kg |
Frequently Asked Questions
What is the ABB OTM40F4CMA24D used for?
The OTM40F4CMA24D is a motorised changeover switch used to transfer electrical loads between two alternative power sources in low-voltage distribution systems.
What is the current rating of the OTM40F4CMA24D?
The ABB OTM40F4CMA24D has a rated current of 40 A.
How many poles does the OTM40F4CMA24D have?
The OTM40F4CMA24D has a 4-pole configuration for applications requiring four-conductor source switching.
What motor operating voltage does the OTM40F4CMA24D use?
The integrated motor operator is designed for a 24 V DC operating supply.
Can the ABB OTM40F4CMA24D be operated manually?
Yes. ABB supplies the OTM40F4CMA24D with an OTV65D6CM manual operating handle and a storage clip for convenient local operation when required.
Trusted ABB Power Switching Technology
ABB OT motorised changeover switches are engineered for dependable source transfer in industrial and commercial electrical distribution systems, combining compact switching technology with convenient motorised and manual operation.
