Automatic Circuit Breaker

Product Description

This is a Schneider Electric NG125N series 3-pole miniature circuit breaker, reference number 18639, designed for reliable overcurrent protection in commercial and industrial electrical distribution systems.

Product Specifications

- Manufacturer: Schneider Electric
- Product Series: Acti9 NG125N
- Reference Number: 18639
- Product Type: Miniature Circuit-Breaker (MCB)
- Poles: 3P (3-pole)
- Rated Current (In): 63 A
- Tripping Curve: C (5-10 times the rated current)
- Rated Operational Voltage (Ue): 380/415 V AC 50/60 Hz
- Ultimate Breaking Capacity (Icu): 25 kA at 380/415 V AC
- Rated Insulation Voltage (Ui): 690 V AC
- Rated Impulse Withstand Voltage (Uimp): 8 kV
- Standard: IEC 60947-2

Product Label Info

Model Code / Product Markings: NG125N 18639

hs_code: 85362010

gtin13: 3303430186399

Application

Suitable for protecting circuits with moderate inrush currents, such as lighting and general-purpose outlets.

Country of Origin

This product is manufactured in Not specified.

Method of Application

Dependable choice for professional installations.

Safety Instructions

Complies with the IEC 60947-2 standard for safety and durability.

Availability

Order now from PLC2Day, items in stock and ready for fast worldwide delivery.

Need urgent and express delivery, sourcing, or repairs? Contact us now.

Documentation

• Official datasheet or product page Schneider Electric

Resources

Additional resources and manuals are available upon request. Contact us for details.

Internal & External Links

• All products from Schneider Electric
• Explore similar products in Electrical Power Transmission

Frequently Asked Questions

What is the Automatic Circuit Breaker used for?

This part is typically used in commercial and industrial electrical distribution systems. It handles overcurrent protection and ensures safety in electrical circuits.

What are the key advantages of Automatic Circuit Breaker?

The key advantages include reliable overcurrent protection, high breaking capacity, and compliance with safety standards.

Is NG125N 18639 compatible with my system?

If you're using Schneider Electric components, especially in commercial or industrial settings, this model will likely be compatible. Contact us to verify.

Alternatives to NG125N 18639

If you're looking for a similar miniature circuit breaker, consider exploring other models within the Schneider Electric Acti9 NG125N series.

Can I sell my surplus stock to PLC2DAY?

Yes, PLC2DAY accepts surplus stock from companies. Contact us for more information on surplus recovery and inventory clearance.

Need Help?

Call us at +31(0)165 20 11 80 or get in touch online.

Last Update: 15/03/2026

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