Name: Schneider Acti9 iC60N 2P 63A MCB A9F74263 - INOSAKI
SKU: Schneider-A9F74263
Price: 54.73 USD
Availability: InStock

Technical Overview

High-performance 2P 63A C-curve miniature circuit breaker. Features 10kA breaking capacity (IEC 60947-2) and VisiSafe/VisiTrip safety indicators for DIN rail.

Key Features

Dual-pole (2P) design with two fully protected poles for comprehensive circuit interruption
Thermal-magnetic trip technology providing reliable protection against overloads and short circuits
C-curve tripping characteristic optimized for moderate inductive loads and standard power distribution systems
VisiSafe green strip offers complete visual confidence that downstream contacts are safely opened
VisiTrip fault indicator clearly highlights the tripped circuit to minimize diagnostic and troubleshooting downtime
Dual AC and DC network support allows for versatile multi-system application capability
Fast closing mechanism independent of manual operation speed minimizes contact wear and extends lifespan
High electrical and mechanical durability rated for up to 10,000 and 20,000 cycles respectively

Technical Specification Matrix

Parameter	Value
Poles Description	2P
Number of Protected Poles	2
Rated Current [In]	63 A
Network Type	AC, DC
Trip Unit Technology	Thermal-magnetic
Curve Code	C
Network Frequency	50/60 Hz
Rated Operational Voltage [Ue]	220...240 V AC 50/60 Hz, 380...415 V AC 50/60 Hz, 440 V AC 50/60 Hz, 12...133 V AC 50/60 Hz, 72...125 V DC
Breaking Capacity	10 kA Icu at 380...415 V AC conforming to IEC/EN 60947-2, 20 kA Icu at 220...240 V AC conforming to IEC/EN 60947-2, 6000 A Icn at 400 V AC conforming to IEC/EN 60898-1, 10 kA Icu at 72...125 V DC conforming to IEC/EN 60947-2, 6 kA Icu at 440 V AC conforming to IEC/EN 60947-2, 36 kA Icu at 12...133 V AC conforming to IEC/EN 60947-2
Rated Service Breaking Capacity [Ics]	7.5 kA 75% conforming to IEC/EN 60947-2 - 380...415 V AC, 15 kA 75% conforming to IEC/EN 60947-2 - 220...240 V AC, 6000 A 100% conforming to IEC/EN 60898-1 - 400 V AC
Rated Insulation Voltage [Ui]	500 V AC 50/60 Hz conforming to IEC/EN 60947-2
Rated Impulse Withstand Voltage [Uimp]	6 kV conforming to IEC/EN 60947-2
IP Degree of Protection	IP20 conforming to IEC 60529, IP40 in modular enclosure
Mechanical Durability	20,000 cycles
Electrical Durability	10,000 cycles
Mounting Support	35 mm DIN rail
Pollution Degree	3 conforming to IEC/EN 60947-2
Tightening Torque	3.5 N.m (top or bottom)
Physical Weight (kg)	0.25
Dimensions L x W x H (cm)	7.85 x 3.6 x 8.5

Industrial Applications

1. Industrial Motor Control Center (MCC) Protection

Utilized inside industrial motor control cabinets to safeguard low-voltage inductive loads, such as small-to-medium three-phase motors and process pumps. The C-curve tripping characteristic is specifically engineered to allow normal motor inrush currents during startup phases without initiating nuisance trips.

Problem Solved

Mitigates the risk of catastrophic winding and control panel damage caused by heavy thermal overloads and short circuits while preventing disruptive, false shutdowns during high-current starting cycles.

C-curve tripping63A rated currentMotor control protectionIEC/EN 60947-2VisiTrip indicator

2. Substation DC Auxiliary Power Supply Safeguarding

Deployed in electrical substations or critical backup battery rooms to protect the 110V/125V DC auxiliary power systems. These DC networks supply uninterrupted power to protection relays, communication links, and remote control systems.

Problem Solved

Provides reliable, dedicated DC overcurrent protection up to 125V DC (with 10 kA breaking capacity), ensuring that auxiliary power distribution remains fully functional and isolated during heavy fault events without system-wide blackouts.

125V DC breakingAuxiliary power systemDC network protectionVisiSafe technologySubstation reliability

3. Commercial HVAC and Chiller Distribution Branch Protection

Serves as branch circuit protection in heavy commercial climate control panels, feeding high-capacity single-phase or two-phase loads, including air handling units, compressor heaters, and condenser fan arrays operating at 220-240V AC.

Problem Solved

Secures branch networks against severe overcurrent faults. The high 20 kA breaking capacity at 220-240V AC guarantees high safety margins in commercial installations, while the VisiTrip indicator allows maintenance personnel to immediately identify the faulted HVAC circuit.

220...240 V AC20 kA breaking capacityCommercial HVACOvercurrent protectionDIN rail installation