Home › Manufacturers › Siemens › 5SJ4118-8HG42

Siemens

Siemens 5SJ4118-8HG42 1-Pole D-Curve Circuit Breaker - 15A

Siemens 5SJ4118-8HG42 1-pole, D-curve, 15A circuit breaker.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

In Stock — Ready to Ship

ManufacturerSiemens

Part number5SJ4118-8HG42

Type Miniature Circuit Breaker

Poles 1

Current Rating 15 A

Tripping Characteristic D

Get a price for 5SJ4118-8HG42

Response within 1 business hour

🛡

12-month warranty

All units tested

⚡

Same-day dispatch

Order by 2pm CST

🌐

Worldwide delivery

US, EU, Asia, Middle East

🎖

Veteran-owned

CAGE: 9NK75

1-pole design D-curve tripping 10kA interrupting capacity UL 489 listed 15A rating

Product description

The Siemens 5SJ4118-8HG42 is a 1-pole miniature circuit breaker designed for industrial applications. It features a D-curve tripping characteristic for handling moderate inrush currents, a 15A rating, and a 10kA breaking capacity. This unit is UL 489 listed and rated for 277V.

This circuit breaker is suitable for protecting circuits in control panels and machinery where inductive loads might cause temporary current surges. The D-curve ensures that nuisance tripping is minimized during startup of equipment like small motors or transformers.

Stanlo Automation, a veteran-owned distributor specializing in surplus industrial automation parts, offers the Siemens 5SJ4118-8HG42. We ensure our parts are quality-checked and ready for deployment in your critical systems, providing a cost-effective solution.

Technical specifications

Type	Miniature Circuit Breaker
Poles	1
Current Rating	15 A
Tripping Characteristic	D
Breaking Capacity	10 kA
Voltage Rating	277V AC
Standard	UL 489

Common applications

Industrial control systems

Machine building

Automation panels

Power distribution

Electrical enclosures

Compatible systems

Industrial control panels Machine automation Electrical distribution systems OEM equipment

Also known as

Siemens 5SJ4118-8HG42 5SJ4 Series breaker Siemens 15A D-curve MCB

Replaces / compatible with

This part is a direct replacement for other Siemens 5SJ4 series breakers with similar ratings. Consult manufacturer data for precise compatibility verification.

Technical note

Expert tip

The 10kA breaking capacity is sufficient for many industrial applications, but it's crucial to verify this rating against the maximum prospective short-circuit current at the point of installation.

What happens next?

Email confirmation

Immediate receipt acknowledgment sent to you

Account manager assigned

Confirms your part's spec and condition

Your quote delivered

Tailored to your specific requirements

Frequently asked questions

What is the intended use for a Siemens 5SJ4118-8HG42 circuit breaker with a D-curve?

The Siemens 5SJ4118-8HG42's D-curve is designed to handle circuits with higher inrush currents, such as those powering motors or transformers. It allows for brief, high current surges during equipment startup without tripping, while still providing effective short-circuit protection.