abb Automatic transfer switch 800 amps with 4 Poles

Why Choose the ABB OTM800E4C3D230C Automatic Change-Over Switch?

The ABB OTM800E4C3D230C is a heavy-duty automatic change-over switch designed for reliable transfer between utility and standby power supplies in demanding industrial and commercial applications. As part of the advanced ABB OTM motorised transfer switch range, it delivers dependable automatic source switching for installations where uninterrupted electrical continuity is critical.

This motor-operated transfer switch combines ABB’s proven switch-disconnector technology with integrated automatic transfer functionality, enabling secure switching between mains and generator supplies during supply interruptions, maintenance procedures or emergency conditions. Its robust construction ensures reliable long-term performance in harsh electrical environments.

With a rated operational current of 800 A, a 4-pole configuration, and a 230 V AC motor operating voltage, the OTM800E4C3D230C is ideal for industrial switchboards, commercial buildings, data centres and backup power systems requiring safe and efficient automatic transfer performance. Its open transition design ensures dependable separation between asynchronous power sources.

Key Advantages

• Heavy-duty automatic change-over switch for critical power applications.
• 800 A operational current rating suitable for industrial and commercial systems.
• 4-pole open transition switching for secure automatic source transfer.
• Integrated motor-operated mechanism with automatic control functionality.
• Reliable switching between mains and generator power supplies.
• Robust ABB construction 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 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: OTM800E4C3D230C
• 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
• 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
• Position of line terminals: Top in - Bottom out
• Mounting type: Base mounting
• Protection rating: IP00 front protection
• Pollution degree: 3
• Power loss: approx. 40 W
• 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 OTM800E4C3D230C are designed to maintain uninterrupted electrical supply by automatically transferring loads between utility mains and standby power sources during outages or planned maintenance operations.

The ABB OTM range is trusted by electrical engineers, industrial operators and panel builders because of its dependable switching performance, robust construction and integrated motor-operated transfer mechanism. The open transition design ensures safe isolation between separate 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.