OT63G2-3BS ABB OT Plus Isolator 63A 3 Pole. G2 Frame Size. Screw Terminals IP20 1SCA162548R1001

The OT63G2-3BS from ABB is a 63A three-pole isolator switch disconnector from the OT Plus range, designed to provide reliable electrical isolation in industrial and commercial installations. This G2 frame size isolator offers enhanced safety and performance for circuit isolation applications up to 63A, making it ideal for motor control panels, distribution boards, and industrial switchgear. Built to modern standards with improved features over previous generations, it delivers dependable service in demanding electrical environments.

Key Features

• 63A Current Rating: Handles continuous currents up to 63A with AC-23A rated power of 30kW, suitable for substantial motor and resistive loads in industrial applications.
• Versatile Cable Compatibility: Accepts flexible copper cables from 1.5-35mm² and solid copper cables from 1.5-6mm², accommodating various installation requirements without additional accessories.
• Dual Mounting Options: Features both base mounting and DIN rail mounting capabilities, providing installation flexibility in different panel configurations and retrofit situations.
• Padlockable Safety Handle: Includes direct-mounted handle with padlocking capability for lockout/tagout procedures, essential for maintenance safety and regulatory compliance.
• Compact G2 Frame: Measuring just 91.5 x 52.5 x 73mm and weighing only 0.25kg, maximises panel space efficiency while maintaining robust construction.
• Screw Terminal Design: Reliable screw terminals with 2Nm tightening torque specification ensure secure connections and simplified maintenance procedures.
• Enhanced Compatibility: Direct compatibility with existing OT range shafts and external handles, enabling easy upgrades and standardisation across installations.

Applications

The OT63G2-3BS isolator is commonly used in motor control centres, industrial distribution panels, and machinery control systems where reliable circuit isolation is essential. It serves as a local isolation point for motors, heating elements, and other three-phase loads up to 30kW. The compact design makes it particularly suitable for space-constrained panels and modular switchgear assemblies, while the padlockable handle meets safety requirements for maintenance isolation in industrial facilities and commercial buildings.

Standards and Compliance

This isolator complies with IEC 60947-3 international standards for switch disconnectors and UL 60947-4-1 for North American applications. The IP20 protection rating provides appropriate protection against solid objects for standard panel-mounted applications. The unit carries CE marking for European conformity and meets modern electrical safety requirements for industrial installations.

Manufactured by ABB in Finland with product code OT63G2-3BS (alternate code 1SCA162548R1001).

Frequently Asked Questions

What cable sizes can I connect to the OT63G2-3BS isolator?

The isolator accepts flexible copper cables from 1.5mm² to 35mm² and solid copper cables from 1.5mm² to 6mm². The screw terminals should be tightened to 2Nm torque for secure connections. This range covers most typical industrial and commercial wiring requirements without needing cable lugs or adapters.

Can this isolator be mounted on both DIN rail and directly to a panel?

Yes, the OT63G2-3BS features dual mounting capability for both base mounting directly to panels and standard DIN rail mounting. This flexibility allows it to be used in various panel configurations and makes it suitable for both new installations and retrofits where different mounting methods are preferred.

What's the difference between the OT Plus range and previous ABB isolators?

The OT Plus range offers enhanced features while maintaining compatibility with existing OT range accessories. The direct-mounted padlockable handle is included as standard, and the design provides improved space efficiency with the compact G2 frame size. External handles and shaft extensions from the original OT range remain fully compatible.

What size loads can this 63A isolator handle?

The OT63G2-3BS is rated for continuous current of 63A and AC-23A duty rated power of 30kW. This makes it suitable for three-phase motors up to approximately 30kW, resistive heating loads, and other industrial equipment within these parameters. Always verify that your specific load requirements fall within these ratings.

Does the isolator include lockout/tagout capability?

Yes, the OT63G2-3BS includes a padlockable direct-mounted handle as standard, enabling proper lockout/tagout procedures for maintenance safety. The handle design allows for standard padlocks to be fitted, meeting workplace safety requirements for electrical isolation during maintenance work.

Where can I buy the ABB OT63G2-3BS switch?

The ABB OT63G2-3BS OT Plus Switch is available at CSE Distributors in the UK. Order by 1pm for next day delivery. As an official ABB distributor with over 50 years of experience, CSE provides genuine ABB products with full warranty support. CSE Distributors has hundreds of positive reviews and is a go-to technical stockist for control panel builders and OEMs involved in the electrical automation and controls industry across the UK