OTM2000E4CM24D ABB 2000 A 4-Pole 24 V DC Motorised Change-Over Switch

Why Choose the ABB OTM2000E4CM24D Motorised Change-Over Switch?

The ABB OTM2000E4CM24D is a heavy-duty 2000 A four-pole motorised change-over switch designed for controlled switching between two high-current electrical power sources. As part of the ABB OT Change-over Switches product group, it combines ABB's established OT switching platform with an integrated motor operator for industrial, commercial, infrastructure and standby power distribution systems.

The OTM2000E4CM24D provides I-O-II open-transition operation, creating a defined OFF position between the two source positions so that one supply is disconnected before the alternative supply is connected. Its integrated 24 V DC motor operator enables remote electrical operation, while the included handle provides manual operation when required for commissioning, maintenance or emergency intervention.

With a rated operational current of 2000 A, a four-pole configuration and rated apparent power of 1350 kVA at 400 V, the OTM2000E4CM24D is engineered for demanding high-current power transfer applications. ABB supplies the switch with manual operating hardware, terminal connection hardware and control-circuit connectors for practical switchboard integration.

Key Advantages

• Heavy-duty 2000 A motorised change-over switching for high-current power distribution.
• Four-pole configuration for simultaneous switching of four conductors.
• Integrated 24 V DC motor operator for low-voltage remote control systems.
• I-O-II open-transition operation provides a defined OFF position between sources.
• Supports both motorised remote operation and manual operation.
• 1350 kVA rated apparent power at 400 V.
• ABB OTM2000 series construction for demanding high-current change-over applications.
• Supplied with handle, terminal bolt hardware, control-circuit connectors, handle storage clamp and spare fuses.

Key Features

• ABB OT Change-over Switches product group.
• 2000 A rated operational current.
• 4-pole configuration.
• Integrated 24 V DC motor drive.
• I-O-II open-transition change-over operation.
• AC-21B utilisation category for the OTM2000 range.
• 2000 A AC-21B rated current.
• 1350 kVA rated apparent power at 400 V.
• Manual operating handle included as standard.
• M12 × 60 terminal bolt kit specified for OTM1000–2500 switches.
• Male connectors for control circuits included.
• Handle storage clamp and spare fuses included.
• Integrated motor drive for remotely controlled source transfer.

Reliable 24 V DC High-Current Power Source Change-Over

Motorised change-over switches such as the ABB OTM2000E4CM24D enable high-capacity electrical power sources to be selected remotely without requiring routine manual switching at the switchboard. The integrated 24 V DC motor mechanism operates the switch while the I-O-II open-transition arrangement maintains a defined electrical break between the two sources during transfer.

The OTM2000E4CM24D combines a substantial 2000 A rating with four-pole switching and low-voltage 24 V DC motor control. The switch includes a handle for manual operation, terminal bolt hardware and male connectors for the control circuits, while the OTM2000 construction also includes a handle storage clamp and spare fuses for practical installation and maintenance.

Typical Applications

• High-current mains-to-generator change-over systems.
• Standby and alternative power supply switching.
• Industrial main electrical distribution systems.
• Commercial and infrastructure power distribution.
• Large switchboards and main distribution panels.
• Remote 24 V DC controlled source-selection systems.