The Schneider Electric Acti9 NG125L miniature circuit breaker, identified by part number 18844, provides robust overcurrent protection for low-voltage electrical systems. This 2-pole (2P) device is engineered for reliable performance in demanding industrial environments, offering a rated current of 40A. Its design incorporates a D-curve tripping characteristic, specifically suited for applications where high inrush currents are anticipated, such as motor starting or transformer energization, ensuring uninterrupted operation under normal load conditions while safeguarding against faults.

Technical details

• Series: Acti9 NG125L
• Configuration: 2-Pole (2P)
• Rated Current: 40A
• Tripping Curve: Type D
• Voltage Rating: Confirm with manufacturer datasheet for specific application voltage (e.g., 230/400VAC).
• Breaking Capacity: Confirm with manufacturer datasheet for specific fault current interruption rating (e.g., 10kA, 15kA, 25kA).
• Terminal Type: Confirm with manufacturer datasheet for specific connection type (e.g., screw terminals, cage clamp terminals).
• Operating Temperature Range: Confirm with manufacturer datasheet for environmental operating limits.

Applications & compatibility

This Schneider Electric circuit breaker is commonly deployed in commercial and industrial electrical distribution panels, protecting circuits in machinery, control cabinets, and building infrastructure. Its D-curve characteristic makes it particularly suitable for applications involving inductive loads such as motors in conveyor systems, pumps, fans, and HVAC equipment, as well as transformer-fed circuits where temporary high currents are expected during energization.

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 Schneider 18844 or contact our technical team for cross-reference assistance with compatible Acti9 NG125L components.