Interpact INS400 4P 400 A Isolating Switch

The Schneider Electric Interpact INS400 switch disconnector, reference 31111, is a robust and reliable solution for electrical isolation applications in industrial and commercial systems. This 4-pole device is designed to provide safe isolation of electrical circuits, ensuring equipment protection and personnel safety. Its rated current of 400 A makes it ideal for high-demand installations, and it is designed to operate with voltages up to 690 VAC and 250 VDC.

The Interpact INS400 complies with international standards IEC 60947-1 and IEC 60947-3, ensuring safe and reliable performance in disconnection and isolation applications. Its ergonomic black rotary handle allows for easy and comfortable manual operation, enhancing user experience and ensuring precise system control.

Key Features:

• Rated operational current (AC): 400 A at 220/240 VAC, 380/415 VAC, 500/525 VAC, 660/690 VAC
• Rated operational current (DC): 400 A at 125 VDC (2 poles in series) or 250 VDC (4 poles in series)
• Breaking capacity: 50 kA at 690 VAC (switch disconnector only), 330 kA with upstream circuit breaker
• Insulation voltage: 800 VAC
• Impulse withstand voltage (Uimp): 8 kV
• Control type: Rotary handle (black)

This switch disconnector is designed for applications requiring continuous and uninterrupted operation, such as in electrical distribution systems in industrial plants, commercial buildings, and large infrastructure facilities. Its ergonomic design reduces installation time and facilitates wiring, optimising the integration process in electrical panels.

Key Technical Data:

• Conventional thermal current (Ith): 400 A at 60 °C
• Electrical durability: Up to 1500 cycles in AC (AC-22A and AC-23A) and 1000 cycles in DC (DC-23A)
• Mechanical durability: 10,000 cycles
• Isolation capability: Suitable for AC-22A and AC-23A applications, providing safe isolation even under high load conditions
• Maximum supported power (AC-23A):
  • 110 kW at 220/240 VAC
  • 200 kW at 380/415 VAC
  • 400 kW at 660/690 VAC
• Protection rating: IP20 in its standard version

The Interpact INS400 is designed to offer safety and reliability in critical applications. Thanks to its robust construction and capability to operate over a wide range of voltages and currents, this switch disconnector provides high performance under high-demand conditions, maintaining an optimal level of protection for electrical systems.

Additional Features:

• Visible breaking capacity: Although this model does not feature a visible breaking function, its design ensures complete circuit disconnection.
• Contact position indicator: Includes an indicator to visually verify the contact status, ensuring reliable operation.
• Flexible mounting: Can be mounted on DIN rail or plate, facilitating integration into various electrical panel configurations.

Typical Applications:

The Interpact INS400 switch disconnector is ideal for use in electrical distribution installations in factories, industrial plants, shopping centres, and large buildings. It is also suitable for applications in high voltage power networks where safe and efficient circuit isolation is required. With its capability to handle both alternating and direct current, this switch disconnector offers flexibility and reliability in a variety of industrial and commercial environments.