abb Automatic transfer switch 800 amps with 3 Poles

Why Choose the ABB OTM800E3CB8D230C Automatic Change-Over Switch?

The ABB OTM800E3CB8D230C is a heavy-duty automatic change-over switch engineered for dependable transfer between primary and standby power sources in industrial and commercial electrical systems. As part of the advanced ABB OTM motorised transfer switch series, it provides reliable automatic switching functionality for applications where continuous power availability is essential.

This motor-operated switch-disconnector integrates ABB’s proven transfer switching technology with automatic source transfer functionality, enabling secure switching between mains and generator supplies during supply interruptions or maintenance operations. Its robust mechanical design ensures long-term durability and reliable performance in demanding electrical environments.

With a rated operational current of 800 A, a 3-pole configuration, and a 220–240 V AC motor operating voltage, the OTM800E3CB8D230C is ideal for industrial switchboards, generator systems, critical infrastructure and commercial power distribution installations requiring secure and efficient automatic source transfer. Its open transition switching operation ensures safe separation between asynchronous power supplies.

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 automatic source transfer.
• Integrated motor-operated mechanism with automatic control functionality.
• Reliable switching between mains and generator supplies.
• Robust construction designed for demanding industrial environments.

Key Features

• ABB OTM automatic transfer switch series.
• 800 A rated operational current.
• 3-pole automatic transfer configuration.
• 220–240 V AC motor operating voltage.
• Open transition switching operation.
• Integrated automatic transfer functionality.
• Manual operating handle for maintenance and local operation.
• Suitable for industrial switchboards and backup power systems.

Technical Specifications

• Manufacturer: ABB
• Series: OTM Automatic Change-Over Switches
• Model: OTM800E3CB8D230C
• Product type: Automatic change-over switch
• Rated operational current: 800 A
• Number of poles: 3
• Rated operational voltage: up to 1000 V AC
• Motor operating voltage: 220–240 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
• Switch operating mechanism: Mechanism at the end of the switch
• Mounting type: Base mounting
• Protection rating: IP00 front protection
• Pollution degree: 3
• Power loss: approx. 40 W
• Dimensions (W × H × D): approx. 411 × 357 × 299 mm
• Weight: approx. 34 kg
• Standards: IEC 60947-3

Reliable Automatic Power Transfer for Critical Systems

Automatic change-over switches such as the ABB OTM800E3CB8D230C are designed to ensure uninterrupted electrical supply by automatically transferring loads between utility mains and standby power sources during outages or maintenance operations.

The ABB OTM range is widely trusted by electrical engineers, industrial operators and panel builders because of its reliable switching performance, integrated safety features and durable motor-operated transfer mechanism. The three stable switch positions help ensure safe isolation between asynchronous power sources during transfer operations.

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.

Trusted by Power Distribution Professionals Worldwide

ABB OTM automatic transfer switches are trusted by industrial engineers and electrical contractors for dependable automatic source transfer, robust construction and long-term operational reliability.