The Schneider Electric 28904 is a Compact INS80 3-pole switch disconnector rated at 80 A, designed for safe isolation of electrical circuits in AC and DC networks. With a rated insulation voltage of 690 V AC and an impulse withstand voltage of 8 kV, it provides reliable disconnection for industrial and commercial power distribution applications.

Technical specifications:

• Commercial reference: 28904
• Manufacturer: Schneider Electric
• EAN: 3303430289043
• Series / range: Compact INS
• Product type: Switch disconnector
• Number of poles: 3P
• Network type: AC / DC
• Network frequency: 50/60 Hz
• Rated current (AC-22A): 80 A at 220/240 V, 380/415 V, 440/480 V, 500 V AC 50/60 Hz
• Rated current (AC-23A): 80 A at 220/240 V; 72 A at 380/415 V; 63 A at 440/480 V; 40 A at 500 V AC 50/60 Hz
• Rated current (DC-22A / DC-23A): 80 A at 125 V DC (2 poles in series)
• Rated insulation voltage [Ui]: 690 V AC 50/60 Hz
• Rated impulse withstand voltage [Uimp]: 8 kV
• Conventional free-air thermal current [Ith]: 80 A at 60C
• Rated short-circuit making capacity [Icm]: 15 kA (disconnector alone, 500 V AC); 75 kA (with protective circuit breaker, 500 V AC)
• Short-time withstand current [Icw]: 3 kA for 1 s; 1.73 kA for 3 s; 0.67 kA for 20 s; 0.55 kA for 30 s (per IEC 60947-3)
• Maximum power (AC-23): 37 kW at 380/415 V and 440 V; 22 kW at 220/240 V and 500/525 V AC 50/60 Hz
• Cable cross-section: 1.5…50 mm
• Mechanical durability: 20,000 operating cycles
• Electrical durability: 1,500 cycles (AC-22A and AC-23A at all rated voltages)
• Control type: Rotary handle (black)
• Mounting: Fixed, on DIN rail or mounting plate
• Connection: Front upper and front lower terminals
• Width: 90 mm
• Height: 85 mm
• Depth: 62.5 mm
• Weight: 0.5 kg
• IP protection rating: IP40 per IEC 60529
• IK protection rating: IK07 per EN 50102
• Operating temperature: -25…70C
• Storage temperature: -50…85C
• Certifications: CCC, KEMA-KEUR
• Standards: IEC 60947-3, IEC 60947-1
• Warranty: 18 months

Features and benefits:

• Suitable for isolation duty – safely isolates circuits for maintenance and testing
• Compatible with both AC and DC networks, offering flexibility across installation types
• High short-circuit making capacity of up to 75 kA when used with a protective circuit breaker
• Wide operating temperature range of -25…70C supports use in demanding environments
• DIN rail and panel mounting options simplify installation in standard enclosures
• Contact position indicator provides clear visual confirmation of open or closed state

Applications:

• Isolation of motor circuits and industrial machinery in manufacturing plants
• Main or section isolators in commercial and industrial power distribution boards
• DC circuit disconnection in renewable energy or battery system installations
• Isolation switching in automation panels and machine control cabinets

Compliant with IEC 60947-3 and IEC 60947-1. Part of the Schneider Electric Compact INS range.

Also known as: Schneider 28904, Schneider Electric 28904, Compact INS80 switch disconnector, 80A 3-pole disconnector.