Interpact INS400 3-pole 400 A isolator switch

3-pole Interpact Interpact INS400 switch, designed for the safe disconnection of electrical circuits in industrial installations. Compatible with AC networks and DC current, it supports a nominal current of 400 A in AC-22A, AC-23A, DC-22A and DC-23A, with nominal voltage of 690 V AC and 250 V DC. It is suitable for environments with degree of contamination 3 and operating temperatures between -25 and 70 °C.

Technical characteristics

• Number of poles: 3P
• Network type: AC Continuous current
• Network frequency: 50/60 Hz
• Nominal current of employment: 400 A (AC-22A, AC-23A, DC-22A, DC-23A)
• Nominal insulation voltage: 750 V AC 50/60 Hz
• Voltage peak resistance: 8 kV
• Conventional thermal current: 400 A at 60 °C
• Nominal short circuit capacity: 330 kA (with automatic upstream switch), 50 kA (selector switch only)
• Nominal operating voltage: 690 V AC 50/60 Hz, 250 V DC
• Sewing power: Yes
• Contact position indicator: Yes
• Visible cut: No
• Degree of contamination: 3
• Type of control: Rotary Command
• Handle colour: Black
• Type of assembly: Fixed
• Mounting bracket: Rail plate
• Top connection: Front
• Connection down: Front
• Maximum power: Up to 400 kW in 660/690 V AC
• Mechanical durability: 10000 cycles
• Electrical durability: 1500 cycles (AC-22A, AC-23A), 1000 cycles (DC-23A)
• Permissible temporal current: 11.5 kA (3 s), 20 kA (1 s), 4 kA (30 s), 4.9 kA (20 s)
• Connection step: 45 mm
• Height: 205 mm
• Width: 185 mm
• Depth: 130 mm
• Weight: 4.6 kg
• Compatibility code: INS400
• Standards: EN> 40 A Instant and demand values
• Certifications: KEMA-KEUR, CCC
• Degree of IP protection: IP40
• Level of protection IK: IK07
• Operating ambient temperature: -25...70 °C
• Storage ambient temperature: -50...85 °C
• Sustainable supply status: Product Green Premium
• EU RoHS Directive: As per
• No mercury: Yes
• WEEE: To be discarded by specific system in the EU