Home › Manufacturers › Siemens › 5SY5104-6

Siemens

Siemens 5SY5104-6 Miniature Circuit Breaker — 1-Pole, 4A, B-Curve

Siemens 5SY5104-6 Miniature Circuit Breaker: 1-pole, B-curve, 4A.

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

In Stock — Ready to Ship

ManufacturerSiemens

Part number5SY5104-6

Manufacturer Siemens

Part Number 5SY5104-6

Type Miniature Circuit Breaker

Poles 1

Get a price for 5SY5104-6

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 B-curve tripping characteristic 10kA breaking capacity Universal AC/DC voltage rating Suitable for low inrush current DIN rail mountable

Product description

The Siemens 5SY5104-6 is a 1-pole miniature circuit breaker characterized by its B-curve tripping mechanism, ideal for circuits with low inrush currents or purely resistive loads. It offers a breaking capacity of 10kA and supports universal current applications with ratings of 230/400V AC and 220V DC.

This circuit breaker is commonly used in residential settings for protecting lighting circuits, heating systems, and sensitive electronic equipment. Its B-curve makes it less prone to tripping from temporary surges, ensuring stable operation for protected devices. The 4A rating is suitable for lower power circuits.

Stanlo Automation, a veteran-owned business specializing in surplus industrial automation parts, provides the Siemens 5SY5104-6. We offer reliable, tested components to help you maintain operations efficiently and affordably. Trust us for your essential electrical and automation spare part needs.

Technical specifications

Manufacturer	Siemens
Part Number	5SY5104-6
Type	Miniature Circuit Breaker
Poles	1
Tripping Curve	B
Rated Current	4A
Rated Voltage AC	230/400V
Rated Voltage DC	220V
Breaking Capacity	10kA

Common applications

Residential lighting circuits

Heating system protection

Sensitive electronic equipment

RVs and mobile homes

Distribution boards

Compatible systems

General purpose use in AC and DC distribution systems

Also known as

Siemens 5SY series 4A breaker 5SY5104-6 MCB Siemens B-curve circuit breaker Siemens 4A DIN rail breaker

Replaces / compatible with

This circuit breaker is part of the Siemens 5SY series and is designed to replace older or equivalent Siemens circuit breakers with similar specifications.

Technical note

Expert tip

The B-curve provides a tripping range of 3-5 times the rated current, making it ideal for resistive loads or applications sensitive to overvoltage surges.

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 main application for a Siemens 5SY5104-6 with a B-curve?

The Siemens 5SY5104-6 with a B-curve is best suited for circuits with low inrush currents, such as lighting, socket outlets in residential areas, and protection of sensitive electronic equipment where nuisance tripping needs to be minimized.