abb Automatic transfer switch 800 amps with 3 Poles
ABB OTM800E3C8D230C automatic change-over switch, an 800 A 3-pole motor-operated transfer switch designed for industrial and commercial backup power transfer applications.
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Why Choose the ABB OTM800E3C8D230C Automatic Change-Over Switch?
The ABB OTM800E3C8D230C is a high-performance automatic change-over switch designed for reliable transfer between primary and standby power sources in demanding industrial and commercial environments. As part of the proven ABB OTM motorised transfer switch series, it provides dependable automatic switching functionality for applications where uninterrupted power continuity is critical.
This motor-operated switch-disconnector integrates ABB’s advanced switching technology with intelligent automatic transfer control, enabling secure source transfer between utility mains and generator supplies. Its robust construction and dependable operating mechanism ensure long-term performance in mission-critical electrical installations.
With a rated operational current of 800 A, a 3-pole configuration, and a 230 V AC motor operating voltage, the OTM800E3C8D230C is ideal for industrial power distribution systems, generator installations, manufacturing facilities and commercial infrastructure requiring reliable automatic source transfer. Its open transition switching operation ensures safe and efficient transfer performance in demanding electrical applications.
Key Advantages
Heavy-duty automatic change-over switch for critical power systems.
800 A operational current rating suitable for large industrial installations.
3-pole open transition switching for mains and generator transfer.
Integrated motor-operated mechanism with automatic control functionality.
Designed for reliable operation in demanding industrial environments.
Robust switch-disconnector technology ensures long service life.
Key Features
ABB OTM automatic transfer switch series.
800 A rated operational current.
3-pole automatic transfer configuration.
230 V AC motor operating voltage.
Open transition switching operation.
Integrated automatic source transfer functionality.
Manual operating handle for maintenance and local control.
Suitable for industrial switchboards and backup power systems.
Technical Specifications
Manufacturer: ABB
Series: OTM Automatic Change-Over Switches
Model: OTM800E3C8D230C
Product type: Automatic change-over switch
Rated operational current: 800 A
Number of poles: 3P
Rated operational voltage: up to 1000 V AC
Motor operational voltage: 230 V AC
Transition type: Open transition
Rated insulation voltage: 1000 V
Rated impulse withstand voltage: 12 kV
Rated short-time withstand current: 25 kA for 1 second
Mounting type: Base mounting
Protection rating: IP00 front protection
Mechanical durability: approx. 10,000 operations
Standards: IEC 60947-3
Dimensions (H × W × D): approx. 357 × 476 × 299 mm
Weight: approx. 41 kg
Reliable Automatic Power Transfer for Critical Installations
Automatic change-over switches such as the ABB OTM800E3C8D230C are designed to ensure continuous electrical supply by automatically transferring loads between utility mains and standby power sources during supply interruptions or maintenance operations.
The ABB OTM range is widely trusted by electrical engineers, industrial operators and panel builders due to its dependable switching performance, robust construction and long-term operational reliability. Its motor-operated transfer mechanism enables secure and efficient source switching for critical infrastructure and industrial power systems.
Typical Applications
Industrial generator transfer systems.
Main switchboards and power distribution systems.
Commercial building backup power installations.
Critical infrastructure and utility facilities.
Manufacturing and processing plants.
Data centres and telecommunications installations.
Technical Specifications
Current
800 A
Phase
Three Phase
IP Rating
IP00
Series
OTM Automatic Change-Over Switches
Product type
Automatic change-over switch
Rated operational current
800 A
Number of poles
3P
Rated operational voltage
up to 1000 V AC
Motor operational voltage
230 V AC
Transition type
Open transition
Rated insulation voltage
1000 V
Rated impulse withstand voltage
12 kV
Rated short-time withstand current
25 kA for 1 second
Mounting type
Base mounting
Protection rating
IP00 front protection
Mechanical durability
approx. 10,000 operations
Standards
IEC 60947-3
Dimensions (H × W × D)
approx. 357 × 476 × 299 mm
Weight
approx. 41 kg
Frequently Asked Questions
What is the ABB OTM800E3C8D230C used for?
This automatic change-over switch transfers electrical loads between mains and standby power supplies such as generator systems.
What current rating does this switch support?
The switch is rated for 800 A operation in industrial and commercial power systems.
What type of switching transition does it use?
The OTM800E3C8D230C uses an open transition switching method for automatic source transfer.
Does the switch support automatic operation?
Yes, the unit includes an integrated motor-operated mechanism for automatic transfer between power sources.
Where is this switch typically installed?
The switch is commonly installed in industrial switchboards, generator transfer panels and critical backup power systems.
Trusted by Power Distribution Professionals Worldwide
ABB OTM automatic transfer switches are trusted by industrial engineers and electrical contractors for reliable automatic source transfer, robust construction and dependable long-term switching performance.
Current
800 A
Phase
Three Phase
IP Rating
IP00
Series
OTM Automatic Change-Over Switches
Product type
Automatic change-over switch
Rated operational current
800 A
Number of poles
3P
Rated operational voltage
up to 1000 V AC
Motor operational voltage
230 V AC
Transition type
Open transition
Rated insulation voltage
1000 V
Rated impulse withstand voltage
12 kV
Rated short-time withstand current
25 kA for 1 second
Mounting type
Base mounting
Protection rating
IP00 front protection
Mechanical durability
approx. 10,000 operations
Standards
IEC 60947-3
Dimensions (H × W × D)
approx. 357 × 476 × 299 mm
Weight
approx. 41 kg
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...