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OTM63F3C21D400C ABB 63A 3-Pole Automatic Transfer Switch 380–415V AC 30kW
ABB OTM63F3C21D400C is a 63 A three-pole motor-operated open-transition automatic transfer switch for 380–415 V AC network/network and network/genset applications with a 30 kW rating and adjustable transfer control.
£819.99
Why Choose the ABB OTM63F3C21D400C Automatic Transfer Switch?
The ABB OTM63F3C21D400C is a compact 63 A three-pole automatic transfer switch designed for controlled transfer between two electrical power sources. Part of ABB's OT Compact ATS range, it combines a motor-operated changeover switch with automatic transfer control for network/network and network/genset applications.
This C21D adjustable version operates on 380–415 V AC three-phase systems and provides open-transition 1-0-2 switching. It features configurable transfer and back-switching delays together with adjustable overvoltage and undervoltage thresholds, allowing the transfer behaviour to be adapted to the requirements of the installation.
Rated at 63 A with a 30 kW rating at 380–415 V AC, the OTM63F3C21D400C provides an integrated solution for automatic source transfer without requiring a separate external transfer controller. Top-in voltage sensing and compact construction make it particularly suitable for distribution boards, commercial installations and standby generator systems.
Key Advantages
- 63 A three-pole automatic transfer switch for three-phase power distribution.
- Designed for 380–415 V AC systems.
- 30 kW rating for suitable three-phase loads.
- Suitable for both network/network and network/genset source-transfer applications.
- Open-transition 1-0-2 operation provides a disconnected position between sources.
- Adjustable transfer and back-switching delays provide flexible automatic transfer control.
- Adjustable overvoltage and undervoltage thresholds support automatic source monitoring.
- Compact integrated design reduces the need for separate transfer-control components.
Key Features
- ABB OT Compact ATS range.
- 63 A rated current.
- 3-pole configuration.
- 380–415 V AC rated operational voltage.
- 30 kW rating at 380–415 V AC.
- Motor-operated automatic transfer switching.
- Open-transition 1-0-2 operation.
- C21D adjustable control version.
- Configurable transfer delay.
- Configurable back-switching delay.
- Adjustable overvoltage and undervoltage thresholds.
- Top-in voltage sensing.
- Suitable for network/network and network/genset applications.
- Optional Modbus RTU connectivity available using the appropriate plug-in module.
Automatic Power Source Transfer and Monitoring
The ABB OTM63F3C21D400C combines power switching, source monitoring and automatic transfer control in one compact assembly. In automatic operation, the controller monitors the connected power sources and can initiate an open-transition transfer when the configured voltage conditions and time delays require a change of supply.
The adjustable C21D control system allows transfer delay, back-switching delay and voltage thresholds to be configured for the installation. This makes the OTM63F3C21D400C particularly useful for network/network and network/genset systems where automatic response to an unacceptable source condition is required while retaining a defined disconnected position during transfer.
Typical Applications
- Network-to-network automatic power transfer.
- Mains-to-generator automatic transfer systems.
- Standby and emergency power distribution.
- Commercial building electrical distribution.
- Industrial control and distribution panels.
- Three-phase systems requiring automatic source monitoring and transfer.
Technical Specifications
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| Operation | Motorised | |
|---|---|---|
| Device Type | Motorised changeover switch | |
| Series | OT Compact ATS / OTM_C21D | |
| ABB product ID | 1SCA151424R1001 | |
| Product type | Automatic motor-operated transfer switch | |
| Rated current | 63 A | |
| Number of poles | 3 | |
| Rated voltage | 380–415 V AC | |
| Rated power | 30 kW | |
| Transition type | Open transition | |
| Switching sequence | 1-0-2 | |
| Transfer applications | Network/network and network/genset | |
| Control version | C21D adjustable | |
| Transfer delay | Adjustable | |
| Back-switching delay | Adjustable | |
| Overvoltage threshold | Adjustable | |
| Undervoltage threshold | Adjustable | |
| Voltage sensing | Top in | |
| Rated insulation voltage (Ui) | 800 V | |
| Rated impulse withstand voltage (Uimp) | 8 kV | |
| Rated short-time withstand current (Icw) | 2.5 kA RMS for 1 s | |
| Weight | 1.75 kg |
Frequently Asked Questions
What is the ABB OTM63F3C21D400C used for?
The ABB OTM63F3C21D400C is an automatic transfer switch used to transfer electrical loads between two power sources in network/network and network/genset applications.
What is the rated current of the OTM63F3C21D400C?
The OTM63F3C21D400C has a rated current of 63 A.
How many poles does the ABB OTM63F3C21D400C have?
The OTM63F3C21D400C has a three-pole configuration for three-phase power source transfer.
What voltage is the OTM63F3C21D400C designed for?
The OTM63F3C21D400C is designed for 380–415 V AC three-phase systems.
What is the power rating of the OTM63F3C21D400C?
The ABB OTM63F3C21D400C has a 30 kW rating at 380–415 V AC.
Can the transfer settings be adjusted on the OTM63F3C21D400C?
Yes. The C21D version provides configurable transfer and back-switching delays together with adjustable overvoltage and undervoltage thresholds.
Does the ABB OTM63F3C21D400C use open-transition switching?
Yes. The OTM63F3C21D400C provides open-transition 1-0-2 operation, incorporating a disconnected position between the two power sources.
Trusted by Electrical Distribution Professionals Worldwide
ABB OT automatic transfer switches combine source monitoring, motor-operated switching and configurable transfer control in compact assemblies designed for dependable network/network and network/genset power distribution applications.
