ABB OT Plus OT40G1-3MS40 A 3-Pole 40A Load Break Switch with Direct Handle

This 3-pole load break switch delivers robust 40 A switching and isolation for low-voltage power distribution, engineered for demanding industrial and commercial environments. Its direct mounted handle and base mounting ensure straightforward installation and safe operation, providing a reliable solution for panel builders and maintenance teams.

Advantages

The switch offers exceptional durability with a mechanical endurance of 20,000 cycles and an electrical endurance of 2,000 cycles under AC-23A conditions. It provides a high degree of protection with IP65 on the front and IP20 on the terminals, ensuring reliable performance even in demanding environments. The switch complies with IEC 60947-3, guaranteeing international safety and performance standards.

Suitable for

• Main and emergency switching in distribution boards
• Isolation of electrical circuits for maintenance
• Motor control and switching of resistive loads
• Industrial machinery and control panels
• Commercial building electrical installations

Key specifications

• Number of poles: 3
• Rated operational current (Ie): 40 A
• Rated operational voltage (Ue): 690 V AC
• Rated insulation voltage (Ui): 750 V
• Rated impulse withstand voltage (Uimp): 8 kV
• Rated frequency: 50/60 Hz
• Handle type: Direct mounted handle
• Mounting type: Base mounting
• Degree of protection: IP65 (front), IP20 (terminals)
• Terminal type: Screw terminals
• Electrical durability (AC-23A): 2000 cycles
• Mechanical durability: 20000 cycles
• Power loss per pole: 2.5 W
• Short-circuit withstand current (Icw): 1 kA for 1 s
• Ambient air temperature (operation): -25 ... +70 °C

Recommendations

Ideal for panel builders and electrical contractors seeking a reliable, high-performance load break switch that meets international standards and offers long service life in demanding applications.