ABB OT Plus OT40G1-3BS40 A 3-Pole 40A Load Break Switch with Direct Handle

3-pole load break switch delivering reliable switching and isolation for low-voltage power distribution, rated for 40 A operational current. Its direct-mounted black handle ensures safe manual operation even under load, making it a dependable choice for industrial and commercial applications.

Advantages

The switch offers high electrical endurance of 2000 cycles (AC-23A) and mechanical endurance of 20000 cycles, ensuring long service life. With an IP65 front protection (when handle installed) and IP20 terminal protection, it withstands harsh environments. The wide operating temperature range from -25°C to +70°C allows use in diverse climates. Screw terminals accommodate conductors from 1.5 to 16 mm², providing flexible wiring options.

Suitable for

• Main switch in distribution boards and control panels
• Isolation and switching of motors, pumps, and HVAC equipment
• Industrial machinery requiring reliable load break capability
• Commercial buildings and infrastructure projects

Key specifications

• Number of poles: 3
• Rated operational current (Ie): 40 A
• Rated operational voltage: 750 V AC / 1000 V DC
• Rated impulse withstand voltage (Uimp): 8 kV
• Rated insulation voltage (Ui): 750 V
• Rated short-circuit withstand current (Icw): 1 kA (1s)
• Rated short-circuit making capacity (Icm): 2 kA
• Mounting type: Base mounting
• Handle type: Direct mounted, black
• Degree of protection: IP65 front (with handle), IP20 terminals
• Standards: IEC 60947-1, IEC 60947-3
• Operating temperature range: -25 to +70 °C
• Terminal type: Screw terminals
• Terminal capacity: 1.5 - 16 mm²
• Electrical durability: 2000 cycles (AC-23A)
• Mechanical durability: 20000 cycles
• Power loss per pole: 2.5 W

Recommendations

For optimal performance, install in a dry, vibration-free enclosure and verify terminal torque during commissioning. Use only ABB-approved accessories and handle types to maintain IP65 front protection.