The Schneider Electric Acti9 NG125H miniature circuit-breaker is engineered for robust protection in demanding electrical distribution systems. This 3-pole device, rated for 50 Amperes, features a C-curve tripping characteristic, making it suitable for applications requiring protection against overcurrents and short circuits with a moderate inrush current capability. Its high breaking capacity of 36 kA, compliant with IEC 60947-2 standards, ensures reliable interruption of fault currents, safeguarding equipment and personnel.

Technical details

• Series: Acti9 NG125H
• Poles: 3
• Current Rating: 50 A
• Trip Curve: C
• Breaking Capacity: 36 kA (IEC 60947-2)
• Voltage Compatibility: Designed for standard industrial voltage systems; specific voltage ratings should be verified against the manufacturer's datasheet.
• Construction: Miniature circuit-breaker
• Protection Type: Overcurrent and short-circuit protection

Applications & compatibility

This circuit-breaker is commonly deployed in commercial and industrial electrical panels for the protection of circuits in applications such as motor control centers, lighting circuits, and general power distribution. Its robust design and high breaking capacity make it ideal for environments where reliable fault interruption is critical, including manufacturing facilities, data centers, and building services.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the 18729 Schneider Electric or contact our technical team for cross-reference assistance with compatible Acti9 components.