abb Automatic transfer switch 800 amps with 4 Poles

Why Choose the ABB OTM800E4CB3D230C Automatic Change-Over Switch?

The ABB OTM800E4CB3D230C is a high-capacity automatic change-over switch designed for dependable transfer between primary and standby power sources in demanding industrial and commercial installations. As part of the advanced ABB OTM motorised transfer switch series, it delivers secure and reliable automatic source switching for critical applications where uninterrupted power continuity is essential.

This motor-operated transfer switch combines ABB’s proven switch-disconnector technology with integrated automatic transfer control functionality, enabling seamless switching between mains and generator supplies during outages, maintenance operations or emergency conditions. Its robust construction and heavy-duty switching mechanism ensure dependable long-term operation in critical power environments.

With a rated operational current of 800 A, a 4-pole configuration, integrated OMD300 controller, and a 230 V AC motor operating voltage, the OTM800E4CB3D230C is ideal for industrial switchboards, data centres, manufacturing facilities and backup power systems requiring secure automatic transfer performance. Its open transition switching operation ensures safe isolation between asynchronous power supplies.

Key Advantages

• Heavy-duty automatic change-over switch for critical power systems.
• 800 A operational current rating suitable for industrial and commercial installations.
• 4-pole open transition switching for secure automatic source transfer.
• Integrated OMD300 automatic transfer controller.
• Voltage sensing kit fitted for reliable source monitoring.
• Robust ABB construction designed for long-term operational reliability.

Key Features

• ABB OTM automatic transfer switch series.
• 800 A rated operational current.
• 4-pole automatic transfer configuration.
• 230 V AC motor operating voltage.
• Open transition switching operation.
• Integrated OMD300 controller for automatic transfer logic.
• Voltage sensing kit mounted at the bottom of the switch.
• Manual operating handle for maintenance and emergency operation.

Technical Specifications

• Manufacturer: ABB
• Series: OTM Automatic Change-Over Switches
• Model: OTM800E4CB3D230C
• Product type: Automatic change-over switch
• Rated operational current: 800 A
• Number of poles: 4
• Rated operational voltage: 1000 V AC
• Motor operating voltage: 230 V AC
• Transition type: Open transition
• Controller: OMD300
• Rated insulation voltage: 1000 V
• Rated impulse withstand voltage: 12 kV
• Rated short-time withstand current: 20 kA for 1 second
• Rated operational power AC-23A: 450 kW at 400 V AC
• Operating mechanism: Mechanism at the end of the switch
• Protection rating: IP00 front protection
• Pollution degree: 3
• Power loss: approx. 40 W
• Mounting type: Base mounting
• Dimensions (W × H × D): approx. 476 × 357 × 299 mm
• Weight: approx. 37 kg
• Standards: IEC 60947-3

Reliable Automatic Power Transfer for Critical Systems

Automatic change-over switches such as the ABB OTM800E4CB3D230C are designed to maintain uninterrupted electrical supply by automatically transferring loads between utility mains and standby power sources during outages or maintenance procedures.

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