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18638 - NG125 - circuit breaker - NG125N - 3P - 50A - C curve - Schneider Electric

Cat No.	18638
Category	MCB
Stock	In Stock
Condition	Brand New, Sealed Packaging
Product Type	MCB

Please contact us for the exact delivery timeline

In Stock — 1 Qty

$253.42

Quantity	Expected Delivery
1 Units	25 Business Days

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Technical Specification

Schneider 18638 MCB Technical Specification

MCB
Breaking Cap	25kA
Curve	C
Model	NG125
No of pole	3P
Range of Product	—
Rating	50A

Product Details

Schneider Electric 18638 - This Acti9 NG125N product is a low voltage circuit breaker. It is a 3P circuit breaker with 3 protected poles and 50A In rated current and C tripping curve. The rated short circuit breaking capacity goes up to 25kA at 380VAC to 415VAC conforming to EN/IEC 60947-2 standard and 25kA at 380VAC to 415VAC conforming to EN/IEC 60947-2 standard. It complies with both industrial standard EN/IEC 60898-1 and residential standard EN/IEC 60947-2. This miniature circuit breaker protects circuits against short circuit and overload current. It is suitable for isolation in the industrial sector according to IEC/EN 60947-2 standard. The fault tripping is indicated by a red mechanical state indicator light on the front face of the circuit breaker. It has an electrical endurance going up to 10000 cycles and a mechanical endurance going up to 20000 cycles. The Ue operational voltage is equal or below 375VDC, 220VAC to 240VAC, 380VAC to 415VAC, 440VAC or 500VAC. The Ui rated insulation voltage is 690VAC. The Uimp rated impulse withstand voltage is 8kV. The operating frequency is 50Hz or 60Hz. It is DIN rail mountable. Its width is 9 pitches of 9mm. Pollution degree is 3. Overvoltage category is IV. The dimensions are (W) 81mm x (H) 103mm x (D) 81mm. The weight is 0.72kg. According to IEC 60529 standard, the degree of protection is IP20 and IP40 in enclosure. The operating temperature is -30°C to 70°C. The storage temperature is -40°C to 70°C. We are dedicatedly involved in providing an excellent quality products at Electrihub.

Product Dimensions

Schneider 18638 dimensions and weight

Dimensions (L × W × H)

Length 12.7 cm

Width 12.4 cm

Height 8.6 cm

Weight

Net Weight 0.758 kg

Dimensions are approximate. For precise dimensional drawings, contact us.

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Product Overview

Frequently Asked Questions for 18638

Every Schneider 18638 MCB purchased from Electrihub is 100% genuine, brand new, and supplied in original sealed packaging ‚Äî ensuring top performance and reliability. We source all products from trusted Schneider supply channels, so you can buy with complete confidence.
Electrihub offers competitive pricing, fast delivery, and expert support to help you select the right MCB for your application. Whether for industrial automation, electrical panels, or control systems, you can rely on Electrihub for authentic Schneider products that deliver consistent quality and safety.

Yes. RAS Electrihub Private Limited provides PAN India delivery with reliable logistics, safe packaging, and doorstep delivery across all states and union territories.

Yes. RAS Electrihub Private Limited issues GST-compliant invoices and also supports PO-based invoicing for businesses, contractors, and organizations across India.

Yes. RAS Electrihub Private Limited operates as an ISO-certified organization, ensuring quality sourcing, authentic products, and standardized procurement and delivery processes.

The Schneider 18638 MCB is primarily designed to protect electrical circuits from overcurrents caused by overloads and short circuits in MCB-based installations.

The Schneider 18638 is typically rated for standard AC voltages (up to 240V for single-phase or 415V for three-phase systems), making it compatible with most standard power grids.

Yes, the Schneider 18638 is versatile and suitable for both residential load centers and commercial distribution panels, provided the electrical specifications match your system requirements.

The breaking capacity of the Schneider 18638 MCB is specifically rated to handle high fault currents (typically 6kA or 10kA depending on the specific variant) to prevent damage to the downstream equipment.

This MCB is designed for easy DIN rail mounting. Ensure the power is off, snap the 18638 onto the rail, and securely connect the phase and neutral wires according to the terminal markings.

The Schneider 18638 MCB is engineered for durability, boasting thousands of mechanical and electrical operating cycles, which makes the Schneider unit a long-lasting component in your electrical panel.

Yes, the Schneider 18638 often includes a clear ON/OFF visual indication or a trip-flag to help maintenance teams quickly identify the status of the circuit and ensure safety during troubleshooting.

When installed in a suitable enclosure, the Schneider 18638 MCB typically provides IP20 protection for its terminals, preventing accidental contact with live parts and ensuring user safety.

The Schneider 18638 series supports various accessories, including auxiliary contacts, signal contacts, and shunt trips, allowing for enhanced monitoring and remote control of your Schneider electrical system.

The Schneider 18638 MCB is designed to operate reliably in a wide temperature range, generally from -25°C to +60°C, making it suitable for varying environmental conditions without compromising its tripping accuracy.

Reviews & Ratings

4.9

7 reviews

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Sofia Costa Apr 11, 2026

The Schneider 18638 meets all our strict technical specifications. Great availability on Electrihub; we often struggle to find Schneider stock elsewhere. Perfect for maintaining the standards our clients expect.

Aria Moretti Apr 11, 2026

We use this Schneider MCB for most of our client projects. The electrical characteristics are consistent across all units we ordered. A reliable choice for any industrial panel application.

Chloe Bennett Apr 11, 2026

Perfect component for modular panel assembly. The terminal connections are secure and easy to wire. Highly recommended for other electrical contractors and builders.

Isabelle Fournier Apr 11, 2026

High-performance 18638 that fits perfectly on a standard DIN rail. The compact design of the 18638 saves significant space in the enclosure. The shipping was secure, ensuring no damage to the sensitive components.

Yuki Tanaka Apr 11, 2026

Excellent industrial-grade MCB for our distribution boards. The compact design of the 18638 saves significant space in the enclosure. Will continue to source our Schneider inventory from this platform.

Ankit Iyer Apr 7, 2026

Electrihub is the best place to buy electrical supplies online in India. Great experience purchasing this 18638.

Reyansh Verma Apr 7, 2026

Competitive pricing for Schneider 18638. Happy with the genuine product and the overall experience on Electrihub.

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18638 - NG125 - circuit breaker - NG125N - 3P - 50A - C curve - Schneider Electric

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Product Overview

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