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OTM80F4CMA24D ABB 80A 4-Pole Motorised Changeover Switch 24V DC
ABB OTM80F4CMA24D is an 80 A 4-pole motorised open-transition changeover switch with a 24 V DC motor operator for industrial, commercial and standby power source transfer applications.
£767.07
Why Choose the ABB OTM80F4CMA24D Motorised Changeover Switch?
The ABB OTM80F4CMA24D is a compact and reliable 80 A 4-pole motorised changeover switch designed for switching between two electrical power sources in industrial and commercial power distribution systems. As part of the ABB OT motorised changeover switch range, it combines dependable source switching with an integrated motor operator for remote electrical operation.
This changeover switch uses an open-transition switching arrangement, ensuring that one source is disconnected before the alternative source is connected. Its 4-pole configuration allows simultaneous switching of three phases and neutral, making it suitable for mains-to-generator, standby power and alternative supply systems where switched-neutral operation is required.
With a rated current of 80 A and an integrated 24 V DC motor operator, the OTM80F4CMA24D provides efficient remote source selection while retaining manual operating capability. Its compact base-mounted construction makes it practical for installation within electrical switchboards, distribution panels and control assemblies.
Key Advantages
- Compact 80 A motorised changeover switch for power source transfer applications.
- 4-pole configuration enables switching of three phases and neutral.
- Integrated 24 V DC motor operator for remote electrical operation.
- Open-transition switching disconnects one source before connecting the alternative source.
- Manual operating handle provides local control when required.
- Suitable for switchboards, standby power systems and industrial distribution equipment.
Key Features
- ABB OT motorised changeover switch range.
- 80 A rated current.
- 4-pole switching configuration.
- 24 V DC motor operating voltage.
- Open-transition changeover operation.
- 37 kW AC-23A rated operational power at 380–415 V AC.
- 80 A AC-21A and AC-22A rating up to 690 V AC.
- 8 kV rated impulse withstand voltage.
- IP20 front protection rating.
- Direct-mounted black handle for manual operation.
Reliable Motorised Power Source Transfer
Motorised changeover switches provide controlled transfer of electrical loads between alternative power sources. The ABB OTM80F4CMA24D integrates the switching mechanism and motor drive into a compact assembly, enabling remote source selection while retaining a handle for manual operation when required.
Its 4-pole construction allows all three phases and the neutral conductor to be switched, while open-transition operation prevents the two sources from being connected simultaneously during normal transfer. The combination of an 80 A switching capacity and 24 V DC motor control makes this model well suited to automated power distribution and standby supply installations.
Typical Applications
- Mains-to-generator changeover systems.
- Standby and emergency power installations.
- Alternative mains supply switching.
- Industrial electrical distribution panels.
- Commercial building power systems.
- Three-phase systems requiring switched-neutral operation.
Technical Specifications
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| Mounting Type | Base mounting | |
|---|---|---|
| Operation | Motorised | |
| Device Type | Motorised changeover switch | |
| Series | OT Motorised Changeover Switches | |
| ABB order code | 1SCA124062R1001 | |
| Product type | Motorised changeover switch | |
| Rated current | 80 A | |
| Number of poles | 4 | |
| Motor operating voltage | 24 V DC | |
| Transition type | Open transition | |
| Fourth pole | Switched, simultaneous function | |
| Rated operational voltage | 800 V | |
| Rated insulation voltage | 800 V | |
| Rated operational current AC-21A | 80 A at 380–415 V, 500 V and 690 V AC | |
| Rated operational current AC-22A | 80 A at 380–415 V, 500 V and 690 V AC | |
| Rated operational current AC-23A | 80 A at 380–415 V, 60 A at 500 V and 40 A at 690 V AC | |
| Rated operational power AC-23A | 37 kW at 380–415 V AC | |
| Rated apparent power at 400 V | 55 kVA | |
| Rated operational current AC-31B at 415 V | 80 A | |
| Rated operational current AC-33B at 415 V | 80 A | |
| Rated impulse withstand voltage | 8 kV | |
| Rated short-time withstand current | 2.5 kA rms for 1 s | |
| Conventional free-air thermal current | 80 A at 40 °C | |
| Fully enclosed thermal current | 80 A | |
| Power loss | 3.5 W | |
| Operating mode | Front operated | |
| Mounting type | Base mounting | |
| Handle | Direct-mounted black handle | |
| Protection rating | IP20 front | |
| Weight | 1.86 kg |
Frequently Asked Questions
What is the ABB OTM80F4CMA24D used for?
The OTM80F4CMA24D is a motorised changeover switch used to transfer electrical loads between two power sources in industrial, commercial and standby power systems.
What is the current rating of the OTM80F4CMA24D?
The ABB OTM80F4CMA24D has a rated current of 80 A, with an AC-23A rating of 80 A at 380–415 V AC.
How many poles does the OTM80F4CMA24D have?
The OTM80F4CMA24D has a 4-pole configuration, enabling simultaneous switching of three phases and the neutral conductor.
What voltage does the motor operator require?
The integrated motor operator is designed for a 24 V DC supply.
Can the OTM80F4CMA24D be operated manually?
Yes. The switch is supplied with a handle for manual operation, allowing local switching when required.
Trusted ABB Power Switching Technology
ABB OT motorised changeover switches are designed to provide dependable power source switching in industrial and commercial electrical systems, combining compact construction, reliable switching performance and convenient motorised operation.
