abb Automatic transfer switch 800 amps with 4 Poles

Why Choose the ABB OTM800E4C8D230C Automatic Change-Over Switch?

The ABB OTM800E4C8D230C is a high-capacity automatic change-over switch designed for secure and dependable transfer between utility and standby power supplies in demanding industrial and commercial environments. As part of the advanced ABB OTM motorised transfer switch series, it provides reliable automatic source switching for applications where uninterrupted electrical continuity is essential.

This motor-operated transfer switch integrates ABB’s proven switch-disconnector technology with intelligent automatic transfer functionality, enabling seamless switching between mains and generator supplies during power failures, maintenance operations or emergency conditions. Its rugged construction and advanced operating mechanism ensure dependable long-term performance in critical power applications.

With a rated operational current of 800 A, a 4-pole configuration, and a 230 V AC motor operating voltage, the OTM800E4C8D230C is ideal for industrial switchboards, commercial buildings, data centres and backup power systems requiring safe and efficient automatic transfer performance. The open transition switching design ensures reliable isolation between asynchronous power sources.

Key Advantages

• Heavy-duty automatic change-over switch for critical power applications.
• 800 A operational current rating suitable for large industrial installations.
• 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 automatic transfer functionality.
• Voltage sensing kit included on the top of the switch.
• Manual operating handle for maintenance and local control.

Technical Specifications

• Manufacturer: ABB
• Series: OTM Automatic Change-Over Switches
• Model: OTM800E4C8D230C
• 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 OTM800E4C8D230C 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 due to its dependable switching performance, integrated safety features and durable 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.