Home › Manufacturers › Siemens › 5SJ4103-7HG40

Siemens

Siemens 5SJ4103-7HG40 1-Pole 3A C-Curve Circuit Breaker — 14kA

Siemens 5SJ4103-7HG40 1-pole miniature circuit breaker.

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

In Stock — Ready to Ship

ManufacturerSiemens

Part number5SJ4103-7HG40

Poles 1

Current Rating 3A

Breaking Capacity 14kA

Tripping Characteristic C

Get a price for 5SJ4103-7HG40

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

14kA interrupting capacity C-curve tripping UL 489 listed 3A current rating Equal polarity

Product description

The Siemens 5SJ4103-7HG40 is a 1-pole miniature circuit breaker featuring a C-curve tripping characteristic, a 3A current rating, and a 14kA breaking capacity. Designed for 240V applications and UL 489 compliant, it also includes 'equal polarity' for consistent installation in multi-pole arrangements. This breaker offers reliable protection against overloads and short circuits.

This circuit breaker is well-suited for protecting electrical circuits in residential, commercial, and light industrial settings. Its C-curve characteristic makes it ideal for circuits with moderate inrush currents, such as lighting, standard outlets, and some small appliances or motors, ensuring consistent performance.

Stanlo Automation, a veteran-owned surplus parts distributor, is your trusted source for Siemens automation components like the 5SJ4103-7HG40. We provide quality surplus parts, competitive pricing, and dedicated customer support to meet your industrial automation needs.

Technical specifications

Poles	1
Current Rating	3A
Breaking Capacity	14kA
Tripping Characteristic	C
Voltage Rating	240V AC
UL Standard	UL 489
Polarity	Equal

Common applications

Residential wiring

Commercial buildings

Light industrial machinery

Outlet circuits

Lighting circuits

Compatible systems

Electrical distribution panels Residential electrical systems Commercial installations Control cabinets

Also known as

Siemens 5SJ4103 5SJ4103-7HG40 breaker Siemens C-curve 3A breaker

Replaces / compatible with

This part can replace Siemens 5SJ4103 series circuit breakers with similar specifications and equal polarity requirements. Always verify compatibility.

Technical note

Expert tip

Ensure proper torque is applied to the terminal screws of the 5SJ4103-7HG40 to maintain a secure connection and prevent overheating.

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 does 'equal polarity' mean for the Siemens 5SJ4103-7HG40 circuit breaker?

The 'equal polarity' designation on the Siemens 5SJ4103-7HG40 means that the internal connections and tripping mechanisms of the poles are aligned consistently. This is important for safety and performance, particularly in multi-pole breaker assemblies.