Siemens
Siemens 5SX2103-7 3A 1-Pole C-Curve Circuit Breaker
Siemens 5SX2103-7 3A 1-Pole Circuit Breaker
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12-Mo Warranty
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🎖 Veteran-Owned
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12-month warranty
All units tested
Same-day dispatch
Order by 2pm CST
Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
3A rating
Single pole
C-curve tripping
DIN rail mounting
Thermal-magnetic protection
6kA interrupting capacity
Product description
The Siemens 5SX2103-7 is a 1-pole miniature circuit breaker featuring a 3 Amp rating and a C-curve tripping characteristic, designed to protect electrical circuits from overcurrents and short circuits.
This breaker is ideal for applications such as control circuits, low-power lighting, and electronic equipment protection where a 3A rating and C-curve are specified for safe operation.
Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 5SX2103-7, providing quality components and reliable service for your industrial needs.
Technical specifications
| Amperage | 3A |
| Poles | 1 |
| Voltage | 230/400V AC |
| Tripping Characteristic | C |
| Interrupting Rating | 6kA |
Common applications
Control circuits
Instrumentation
Low-power lighting
Electronic device protection
Automation systems
Compatible systems
Standard 35mm DIN rail systems.
Also known as
Siemens 5SX2-103-7, Siemens 3A C-Curve Breaker
Replaces / compatible with
The 5SX2103-7 is a direct replacement for other Siemens 5SX21 series breakers with identical ratings. It can also serve as a suitable substitute for comparable 3A, C-curve, single-pole breakers from other manufacturers.
Technical note
Expert tip
Ensure wiring is adequately sized for the 3A rating to prevent overheating and ensure proper breaker function.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 primary use case for a 3A circuit breaker like the Siemens 5SX2103-7?
The Siemens 5SX2103-7, with its 3A rating and C-curve, is best suited for protecting sensitive electronic equipment, control circuits within automation systems, or low-power lighting circuits. It offers precise protection against overloads and short circuits.