Schneider A9K24420 Miniature Circuit Breaker (MCB), Acti9 iK60N 4P C20A 6kA

The Schneider Electric A9K24420 is a 4-pole miniature circuit breaker (MCB) from the Acti9 iK60N range, designed for distribution applications. It provides thermal-magnetic protection at 20 A rated current with a C tripping curve and a breaking capacity of 6000 A at 400 V AC, conforming to EN/IEC 60898-1.

Technical specifications:

• Commercial reference: A9K24420
• Manufacturer: Schneider Electric
• Series / range: Acti9 iK60
• Product type: Miniature circuit breaker (MCB)
• Device short name: iK60N
• Poles: 4P (4 protected poles)
• Rated current [In]: 20 A at 30 °C
• Network type: AC
• Rated operational voltage [Ue]: 400 V AC 50/60 Hz
• Network frequency: 50/60 Hz
• Tripping curve: C
• Trip unit technology: Thermal-magnetic
• Magnetic tripping limit: 5...10 x In
• Breaking capacity [Icn]: 6000 A at 400 V AC conforming to EN/IEC 60898-1
• Rated service breaking capacity [Ics]: 6000 A (100% x Icn) at 400 V AC conforming to EN/IEC 60898-1
• Limitation class: 3 conforming to EN/IEC 60898-1
• Rated insulation voltage [Ui]: 440 V AC conforming to EN/IEC 60898-1
• Rated impulse withstand voltage [Uimp]: 4 kV conforming to EN/IEC 60898-1
• Suitability for isolation: Yes, conforming to EN/IEC 60898-1
• Mounting: Clip-on, 35 mm DIN rail
• Connection type: Tunnel type terminal (top or bottom), rigid 1...25 mm², flexible 1...16 mm²
• Wire stripping length: 14 mm
• Tightening torque: 2 N.m
• IP protection rating: IP20 conforming to IEC 60529
• Operating temperature: -25...60 °C
• Storage temperature: -40...85 °C
• Pollution degree: 2 conforming to EN/IEC 60898-1
• Overvoltage category: II
• Dimensions (WxHxD): 72 x 85 x 78.5 mm
• Weight: 400 g
• Colour: White
• Mechanical durability: 20000 cycles
• Electrical durability: 10000 cycles
• Connection pitch between phases: 18 mm
• Standards: EN/IEC 60898-1
• Certifications: SNI

Features and benefits:

• Thermal-magnetic trip unit provides reliable overload and short-circuit protection for distribution circuits.
• Breaking capacity of 6000 A (Icn) with 100% rated service breaking capacity (Ics) ensures performance under fault conditions.
• Suitable for isolation conforming to EN/IEC 60898-1, allowing the device to serve as a safe disconnection point.
• Clip-on DIN rail mounting and tunnel-type terminals simplify installation and wiring in distribution boards.
• Wide operating temperature range of -25...60 °C supports use in demanding environmental conditions.
• Padlocking device option enables lockout/tagout procedures for maintenance safety.

Applications:

• Final distribution boards in commercial and industrial buildings requiring 4-pole circuit protection.
• Protection of three-phase and neutral circuits in low-voltage distribution panels.
• Electrical installation panels where isolation capability and DIN rail mounting are required.
• Industrial control cabinets operating on 400 V AC three-phase networks.

Compliant with EN/IEC 60898-1. Part of the Schneider Electric Acti9 iK60 range.

Also known as: Schneider A9K24420, Schneider Electric A9K24420, Acti9 iK60N 4P C20A MCB, Schneider 4-pole miniature circuit breaker 20A C curve.