ABB OT63G1-8BS63 8-Pole Disconnect Switch 63 A 1000 V AC/DC Frame G1 with Direct Handle

In industrial control panels and power distribution systems, technicians rely on the ABB OT63G1-8BS63 disconnect switch to safely isolate eight circuits simultaneously. This 63 A switch handles up to 1000 V AC or DC, making it suitable for both alternating and direct current applications in demanding environments.

Key specifications

• Product type: Disconnect switch
• Rated operational current (Ie): 63 A
• Number of poles: 8
• Rated operational voltage (Ue): 1000 V AC / 1000 V DC
• Rated insulation voltage (Ui): 1000 V
• Rated impulse withstand voltage (Uimp): 8 kV
• Rated short-time withstand current (Icw): 1.5 kA (1 s)
• Rated short-circuit making capacity (Icm): 3 kA
• Degree of protection: IP20 (terminals), IP65 (front with handle)
• Mounting type: Base mounting, door mounting
• Terminal type: Screw terminals
• Terminal capacity: 1.5 – 35 mm²
• Standards: IEC 60947-3
• Power loss: 36 W at rated current
• Electrical durability: 2000 operating cycles
• Mechanical durability: 20000 operating cycles
• Operating temperature: -25 to +70 °C
• Frame size: G1
• Actuator type: Direct mounted handle

Why choose it

The OT Plus series is engineered for reliable isolation in compact spaces. Its eight-pole design allows simultaneous switching of multiple circuits, reducing installation time and wiring complexity. The direct mounted handle provides clear ON/OFF indication and can be padlocked in the OFF position for maintenance safety. With a high withstand rating and wide temperature range, it performs consistently in harsh industrial settings.

Ideal use cases

• Isolating multiple DC strings in solar combiner boxes
• Disconnecting battery banks in UPS systems
• Switching control circuits in motor control centers
• Safety isolation in machine tools and conveyor systems

Good to know

The switch meets IEC 60947-3 and offers IP65 protection on the front when the handle is installed, making it suitable for panel doors. Screw terminals accept conductors from 1.5 to 35 mm², ensuring compatibility with a wide range of wiring. For auxiliary contacts or additional accessories, refer to ABB's OT Plus accessory range.