OTM250E4M230C ABB 250 A 4-Pole Motorised Switch Disconnector

Why Choose the ABB OTM250E4M230C 250 A 4-Pole Motorised Switch Disconnector?

The ABB OTM250E4M230C, order code 1SCA115290R1001, is a robust 250 A 4-pole motorised switch disconnector designed for remote and automatic switching of low-voltage electrical circuits. Part of ABB's OTM motorised switch-disconnector range, it combines an OT switch-disconnector with an integrated motor operator to provide reliable electrically controlled isolation.

The OTM250E4M230C is rated at 250 A for both AC-22A and AC-23A duties at up to 690 V AC. Its four-pole construction allows simultaneous switching of all four conductors, making it suitable for three-phase systems where neutral switching is also required. The motor operator uses a 220–240 V AC control supply for electrically commanded operation.

For installation flexibility and serviceability, ABB supplies the OTM250E4M230C with a manual operating handle, terminal bolt kit with nuts and washers, male connectors for the control circuit and a handle and spare-fuse storage clip. This combination makes it a practical solution for switchboards, distribution systems, remotely operated isolators and automated power-control applications.

Key Advantages

• High-capacity 250 A motorised switch disconnector.
• 4-pole configuration for simultaneous multi-pole switching.
• Rated at 250 A for AC-22A and AC-23A duties at up to 690 V AC.
• 220–240 V AC motor operating voltage for remote electrical control.
• Integrated motorised operation eliminates the need for a separate external actuator.
• Manual operating handle included for local operation when required.
• Terminal bolt kit and control-circuit connectors supplied as standard.
• Designed for integration into industrial switchboards and automated distribution systems.

Key Features

• ABB OTM motorised switch-disconnector series.
• 250 A rated operational current.
• 4-pole switching configuration.
• 250 A AC-22A rating at up to 690 V AC.
• 250 A AC-23A rating at up to 690 V AC.
• 220–240 V AC motor voltage.
• Motor-operated switching for remote electrical control.
• Manual operating handle supplied as standard.
• Male connectors supplied for the control circuit.
• Terminal bolt kit with nuts and washers included.
• Handle and spare-fuse storage clip included.
• M8 × 25 terminal bolt kit for the OTM160–250 platform.
• Base-mounted industrial construction.
• Approximate unit weight of 5.0 kg.

Motorised Switching for Remote and Automated Isolation

A motorised switch disconnector combines the isolation capability of a conventional switch disconnector with an electrically powered operating mechanism. The ABB OTM250E4M230C can therefore be switched by an external control signal using its 220–240 V AC motor operator, making it suitable for systems where the switching device must be operated remotely or as part of an automated control sequence.

The 250 A 4-pole architecture makes the OTM250E4M230C suitable for substantial three-phase loads where four conductors require simultaneous switching. Manual operation remains available through the supplied handle, providing an additional means of operating the switch during commissioning, servicing or other appropriate maintenance procedures.

Typical Applications

• Remote electrical isolation of distribution circuits.
• Industrial low-voltage switchboards.
• Automated power-distribution systems.
• Building-services electrical distribution.
• Motor and machinery power circuits.
• Four-pole three-phase distribution systems requiring neutral switching.
• Remote-controlled main-switch applications.
• OEM electrical panels and automation equipment.