Schneider A9A26919 Acti9 Auxiliary Contact iSD+OF 2 C/O 24-250V AC/DC

The Schneider Electric A9A26919 is an auxiliary contact module for the Acti 9 range, combining an iSD fault current indicator and an OF position contact in a single 9 mm wide clip-on unit. It provides 2 changeover (2 C/O) signal contacts rated for 2-100 mA at 24-240V AC and 24-220V DC, enabling remote status monitoring of the parent circuit breaker.

Technical specifications:

• Commercial reference: A9A26919
• Manufacturer: Schneider Electric
• Series / range: Acti 9
• Device type: Auxiliary contact - OC and fault contact (iSD+OF)
• Signal contacts: 2 C/O (2 changeover)
• Rated current [In]: 2-100 mA at 24-240V AC 50/60 Hz; 2-100 mA at 24, 48, 60, 130, 220V DC
• Rated insulation voltage [Ui]: 500V
• Rated impulse withstand voltage [Uimp]: 4 kV
• Operating mode: Daisy chain up to 100 devices
• Mounting: Clip-on, left side of circuit breaker, DIN rail
• Local signaling: Mechanical indicator
• Width: 9 mm, Height: 90 mm, Depth: 73 mm
• Weight: 40 g
• IP protection: IP20
• Pollution degree: 3
• Operating temperature: -25 to 70°C
• Storage temperature: -40 to 85°C
• Relative humidity: 95% at 55°C
• Connection: Screw terminal (top and bottom), 1 cable 1-4 mm² rigid / 0.5-2.5 mm² flexible; 2 cables 2.5 mm² rigid / 1.5 mm² flexible with ferrule
• Strip length: 10 mm, Tightening torque: 1 N.m
• Certifications: CE, UKCA, EAC, CCC
• Standards: EN/IEC 60947-5-1, EN/IEC 60947-5-4, GB/T 14048.5, GB/T 14048.17

Features and benefits:

• Combines fault current indication (iSD) and breaker position contact (OF) in one compact 9 mm module
• Daisy-chain wiring supports up to 100 devices on a single signal loop, reducing installation complexity
• Wide voltage range (24-250V AC/DC) makes it compatible with diverse PLC and BMS signal inputs
• Tool-free clip-on mounting to the left side of Acti 9 circuit breakers for fast panel assembly
• Mechanical indicator provides local visual status without requiring auxiliary power

Applications:

• Remote monitoring of Acti 9 circuit breaker trip and position status in building management systems
• Fault signaling in industrial distribution panels and motor control centers
• Integration with SCADA or PLC systems requiring low-level mA signal contacts
• Energy management and power monitoring installations requiring breaker state feedback

Compliant with EN/IEC 60947-5-1 and EN/IEC 60947-5-4. Part of the Schneider Electric Acti 9 range.

Also known as: Schneider A9A26919, Schneider Electric A9A26919, Acti9 iSD+OF auxiliary contact, Acti 9 2 C/O signal contact.