Schneider Electric A9F79350 iC60N Miniature Circuit Breaker

Description

The A9F79350 is an iC60N miniature circuit breaker (MCB) from Schneider Electric, engineered for reliable circuit protection in commercial and industrial electrical distribution systems. This 3-pole (3P) device features a 50 A nominal current rating and follows a C-characteristic tripping curve, making it ideal for applications with moderate inrush current, such as lighting and motor loads. The iC60N series is recognized for its high-performance breaking capacity and durability, providing robust protection against overloads and short circuits.

Features

• Series: iC60N
• Poles: 3P (3-pole)
• Nominal Current: 50 A
• Tripping Curve: C-characteristic (standard for general-purpose applications)
• Design: Compact, modular design for DIN-rail mounting

Applications

• Commercial building electrical distribution
• Industrial machine supply circuits
• Lighting circuit protection
• Motor circuit protection (within current limits)
• General-purpose low-voltage distribution

Technical Specifications

Installation Guidelines

• Mounting: Snap-mount the circuit breaker onto a standard 35 mm DIN rail. Ensure the device is installed in a vertical orientation for optimal thermal performance.
• Wiring: Connect supply conductors to the top terminals and load conductors to the bottom terminals. Ensure wire cross-sections are appropriate for a 50 A continuous load and are tightened to the torque values specified in the device manual.
• Environment: Install within a protected electrical panel or distribution enclosure. The operating environment should be free from excessive moisture, corrosive gases, and extreme ambient temperatures.
• Safety: Always verify that the downstream circuit is safe before energizing the breaker. Ensure the circuit breaker is fully engaged on the DIN rail to prevent contact resistance.
• Maintenance: Periodically check terminal connections for tightness to prevent overheating due to thermal expansion or vibration.