ABB OTOT63G1-4BSN1Plus 4-Pole 63A Load Break Switch

This ABB OTOT series load break switch delivers robust 63 A switching in a compact 4-pole configuration, engineered for front mounting and direct manual operation. Its high withstand ratings and durable construction make it a reliable component for industrial and commercial power distribution, ensuring safe isolation and control of electrical circuits under load.

Advantages

The OTOT63G1-4BSN1Plus offers exceptional electrical endurance with 2000 operational cycles and mechanical durability of 15000 cycles, reducing maintenance and replacement frequency. The front-mounted black handle provides clear, ergonomic switching, while the IP65 front protection guards against dust and water ingress, making it suitable for demanding environments. Screw terminals accommodate a wide range of conductor sizes from 1.5 to 35 mm², simplifying installation and ensuring secure connections.

Suitable for

• Main and emergency switching in industrial control panels
• Isolation of motors, pumps, and HVAC equipment
• Distribution boards in commercial buildings
• Renewable energy systems requiring reliable DC/AC isolation

Key specifications

• Rated operational current: 63 A
• Number of poles: 4
• Rated operational voltage: 750 V AC
• Rated insulation voltage: 750 V
• Rated impulse withstand voltage: 8 kV
• Rated short-time withstand current: 1.5 kA (1 s)
• Rated short-circuit making capacity: 3 kA
• Frame size: G1
• Mounting: Front mounting
• Terminal type: Screw terminals
• Degree of protection: IP20 (terminals), IP65 (front)
• Operating temperature: -25 to +70 °C
• Standards: IEC 60947-3

Recommendations

For optimal performance, verify conductor sizes and torque settings during installation. Use appropriate cable glands to maintain the IP65 front rating. This switch is ideal for applications requiring frequent operation and reliable isolation in harsh industrial settings.