Siemens
Siemens 5SY6104-6: 230/400V 6kA 1-Pole B-Curve 4A Miniature Circuit Breaker
Siemens 5SY6104-6 Miniature Circuit Breaker
● In Stock
12-Mo Warranty
Same-Day Dispatch
Ships Worldwide
🎖 Veteran-Owned
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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
Single pole design
6kA breaking capacity
B-curve tripping characteristic
DIN rail mountable
Compact and reliable
Siemens quality
Product description
The Siemens 5SY6104-6 is a single-pole miniature circuit breaker (MCB) designed for reliable overcurrent protection. It features a 230/400V voltage rating, a 6kA interrupting capacity, and a B-curve trip characteristic, making it ideal for circuits with low inrush currents. This 4A breaker is suitable for applications requiring sensitive protection, such as those with resistive loads or electronic equipment, found in residential, commercial, and light industrial settings. Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 5SY6104-6. We provide quality components and fast, reliable service for your automation projects.
Technical specifications
| Poles | 1 |
| Voltage | 230/400V AC |
| Current | 4A |
| Breaking Capacity | 6kA |
| Tripping Curve | B |
| Series | 5SY6 |
Common applications
Residential resistive loads
Sensitive electronic equipment
Lighting circuits
Control signal protection
Automation panels
Small power systems
Compatible systems
Compatible with Siemens SENTRON 5SY accessories and standard 35mm DIN rail mounting systems.
Also known as
Siemens 5SY6104-6 MCB
SENTRON 5SY6 4A breaker
Siemens 1-pole B-curve 6kA breaker
Replaces / compatible with
This 4A breaker is a direct replacement for Siemens 5SY6104-6 units or other single-pole, B-curve breakers with compatible voltage and current ratings.
Technical note
Expert tip
This breaker is designed for quick assembly system mounting on standard 35mm DIN rails and features touch-proof terminals.What happens next?
1
Email confirmation
Immediate receipt acknowledgment sent to you
2
Account manager assigned
Confirms your part's spec and condition
3
Your quote delivered
Tailored to your specific requirements
Frequently asked questions
What is the difference between a 5SY6104-6 (B-curve) and a 5SY6104-7 (C-curve)?
The main difference lies in their tripping characteristics. The 5SY6104-6 with a B-curve trips at 3-5 times its rated current, suitable for resistive loads. The 5SY6104-7 with a C-curve trips at 5-10 times its rated current, better for inductive loads with higher inrush currents like motors.