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abb Automatic transfer switch 250 amps with 4 Poles
ABB OTM250E4WC2D230C automatic transfer switch with 250 A rated current, 4-pole configuration and extended phase distance design for reliable power source changeover applications.
Why Choose the ABB OTM250E4WC2D230C Automatic Transfer Switch?
The ABB OTM250E4WC2D230C is a high-performance automatic transfer switch (ATS) designed for reliable automatic switching between two power sources in industrial, commercial and critical power applications. As part of the advanced ABB OTM automatic transfer switch series, it provides dependable source changeover operation to maintain electrical supply continuity during mains failures or power interruptions.
This automatic change-over switch combines a robust switching mechanism with an integrated motor operator and extended phase distance construction. The WC version is designed for applications requiring increased clearance between phases, making it suitable for demanding electrical distribution environments.
With a rated current of 250 A, a 4-pole configuration and a motor operator supply voltage of 220–240 V AC, the ABB OTM250E4WC2D230C is suitable for automatic mains-to-generator transfer systems, industrial switchboards and commercial backup power installations.
Key Advantages
- Reliable automatic transfer switching between two independent power sources.
- 250 A rated current capacity for industrial and commercial electrical distribution.
- 4-pole switching design suitable for systems requiring neutral switching.
- Extended phase distance design improves suitability for demanding installations.
- Integrated 220–240 V AC motor operator enables automatic operation.
- Fast and dependable changeover operation helps improve power availability.
Key Features
- ABB OTM automatic transfer switch series.
- 250 A rated operational current.
- 4-pole automatic change-over switching.
- 220–240 V AC motor operator voltage.
- Extended phase distance WC construction.
- Open transition I-O-II switching operation.
- Includes manual operating handle for emergency operation.
- Suitable for generator and standby power applications.
Reliable Power Transfer for Critical Electrical Systems
Automatic transfer switches such as the ABB OTM250E4WC2D230C monitor available power sources and automatically transfer electrical loads between primary and backup supplies when required. This helps maintain continuous operation and reduces disruption caused by mains supply failures.
The ABB OTM series is designed for electrical engineers and system integrators requiring dependable automatic switching solutions for industrial automation, commercial buildings and standby power installations. Its robust construction, compact design and reliable switching performance simplify modern power distribution systems.
Typical Applications
- Automatic mains failure (AMF) systems.
- Emergency generator changeover installations.
- Industrial power distribution panels.
- Commercial buildings and facilities.
- Critical infrastructure and standby power systems.
- Backup power and generator control applications.
Technical Specifications
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| Mounting Type | Panel / door | |
|---|---|---|
| Device Type | Automatic transfer switch | |
| Operation | Automatic | |
| Coil / Supply Voltage | 220–240 V AC | |
| Poles | 4-pole | |
| Manufacturer | ABB | |
| Series | OTM Automatic Transfer Switches | |
| Model | OTM250E4WC2D230C | |
| Product type | Automatic transfer switch | |
| Rated current | 250 A | |
| Number of poles | 4 poles | |
| Motor operator voltage | 220–240 V AC | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 12 kV | |
| Rated operational voltage | Up to 1000 V AC | |
| Rated operational power AC-23A | Up to 250 kW at 690 V | |
| Short-time withstand current | 8 kA for 1 s | |
| Mounting type | Panel mounting | |
| Phase spacing | Extended phase distance design | |
| Dimensions (H × W × D) | approx. 300 × 339 × 197 mm | |
| Weight | approx. 11 kg |
Frequently Asked Questions
What is the ABB OTM250E4WC2D230C used for?
The ABB OTM250E4WC2D230C is used for automatic switching between two power sources to maintain electrical supply continuity during power interruptions.
What current rating does the OTM250E4WC2D230C support?
The automatic transfer switch supports a rated current of 250 A for industrial and commercial power transfer applications.
How many poles does this automatic transfer switch have?
The ABB OTM250E4WC2D230C features a 4-pole switching configuration.
What motor operator voltage is required?
The automatic transfer switch uses a 220–240 V AC motor operator supply.
What is the difference between the WC version and standard OTM versions?
The WC version features extended phase distance, providing increased clearance between phases for demanding electrical installation requirements.
Trusted by Electrical Engineers Worldwide
ABB OTM automatic transfer switches are widely used in industrial and commercial power systems to provide reliable source transfer, improved power availability and dependable operation in critical electrical installations.
