Part of the Schneider Electric Acti9 NG125L series, the 18858 miniature circuit breaker provides robust protection for low-voltage electrical distribution systems. This 4-pole device is engineered for applications requiring reliable overcurrent and short-circuit protection, particularly in circuits with significant inrush currents such as those found with motors or transformers.

Technical details

• Series: Acti9 NG125L
• Number of Poles: 4
• Rated Current: 16A
• Tripping Curve: D
• Voltage Rating: Verify against manufacturer datasheet for specific system voltage compatibility (e.g., 230/400V AC).
• Interrupting Capacity: Verify against manufacturer datasheet for specific fault current interruption ratings.
• Connection Type: Verify against manufacturer datasheet for terminal type and wire capacity.
• Operating Temperature Range: Verify against manufacturer datasheet for environmental operating limits.

Applications & compatibility

The Schneider 18858 is suitable for use in commercial and industrial environments, including control panels, motor control centers, and power distribution boards. Its D-curve characteristic makes it ideal for protecting inductive loads like motors, transformers, and lighting ballasts where temporary high starting currents are common.

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 18858 or contact our technical team for cross-reference assistance with compatible Acti9 NG125L components.