Eaton QSA400N-2/3 3-Pole 400A Load Break Switch, Intermediate Mounting 1318533

In industrial power distribution, isolating a circuit safely under load requires a robust switch that can handle high currents without compromising operator safety. The Eaton QSA400N-2/3 is a 3-pole load break switch rated for 400 A, designed for intermediate mounting in switchgear and control panels. It provides reliable switching and isolation for low-voltage power circuits up to 690 V AC.

Who is it for

This switch is intended for panel builders, electrical contractors, and maintenance engineers who need a dependable disconnect solution for motor control centers, distribution boards, and industrial machinery. It suits applications where a compact, high-current switch must be mounted within an enclosure.

Main features

• 3-pole configuration for three-phase circuits
• Rated operational current of 400 A
• Operational voltage up to 690 V AC
• Intermediate mounting type for panel installation
• Screw terminal connections for secure wiring
• Mechanical endurance of 10,000 operations

Specifications

• Rated insulation voltage: 1000 V
• Rated impulse withstand voltage: 8 kV
• Rated short-time withstand current (1s): 10 kA
• Rated conditional short-circuit current with fuse: 50 kA
• Rated operational power AC-23A at 400 V: 200 kW
• Operating temperature range: -25 °C to +50 °C
• Storage temperature range: -40 °C to +80 °C
• Electrical life (AC-23A at 400 V): 1,500 operations

Tips

For complete protection, use terminal covers to achieve IP20 degree of protection. A rotary handle and auxiliary contacts are available separately to enhance functionality.