ABB OT Plus OT40G1-6BS40 6-Pole Load Break Switch, 40 A, 750 V, Front Mount, Black Handle

In industrial control panels and power distribution boards, the ABB OT Plus OT40G1-6BS40 load break switch provides reliable isolation and switching for six-pole circuits. This front-mounted switch is rated for 40 A and 750 V AC, making it suitable for motor disconnection, main switch applications, and safety isolation in machinery and building installations.

Key specifications

• Number of poles: 6
• Rated operational current (Ie): 40 A (AC-21A, AC-22A, AC-23A)
• Rated operational voltage (Ue): 750 V AC / 250 V DC
• Rated impulse withstand voltage (Uimp): 8 kV
• Short-circuit making capacity (Icm): 1.7 kA at 690 V
• Short-time withstand current (Icw): 1 kA for 1 s
• Rated frequency: 50/60 Hz
• Degree of protection: IP20 terminals, IP65 front with handle
• Mounting: front mounting / door mounting
• Handle: included, black, OT_G_Handle type
• Terminals: screw terminals
• Electrical durability: 2000 cycles (AC-23A)
• Mechanical durability: 20000 cycles
• Power loss: 3.5 W
• Standards: IEC 60947-3
• Frame size: G1
• Operating temperature: -25 to +70 °C

Why choose it

The OT Plus series is engineered for demanding switching tasks, offering high electrical and mechanical endurance. Its compact G1 frame saves space in enclosures, while the included black handle ensures safe operation and a clear ON/OFF indication. The switch meets stringent IEC standards, guaranteeing performance and safety in industrial environments.

Ideal use cases

• Main switch in industrial control panels
• Motor disconnection and isolation
• Safety switches for machinery
• Building installations requiring reliable isolation

Good to know

The switch is suitable for use in circuits up to 750 V AC and 250 V DC, with a rated impulse withstand voltage of 8 kV. It offers a mechanical durability of 20,000 cycles and an electrical durability of 2,000 cycles under AC-23A conditions. The front-mounted design with included handle provides IP65 protection on the front, while terminals are IP20. Operating temperature range is -25 °C to +70 °C.