Overview
The Siemens 5SX2 C10 circuit breaker is a single-pole miniature protection device engineered for industrial control panels, distribution boards, and similar applications. This 10-ampere C-curve breaker delivers dependable overload and short-circuit protection with a 6 kA breaking capacity. Designed for DIN rail mounting, it integrates seamlessly into standard panel layouts and is built to meet UL 1077 and CSA standards for both AC/DC applications.
Key Features
- Single-pole (1P) configuration for dedicated circuit protection
- C-curve trip characteristic suited for circuits with moderate inrush currents (motors, transformers)
- 6 kA short-circuit breaking capacity per IEC/UL standards
- Compact DIN rail form factor—18 mm module width for space efficiency
- UL 1077 and CSA approved for North American safety compliance
- Manual ON/OFF toggle operation with clear trip indication
Technical Specifications
The 5SX2 C10 is rated at 10A nominal current with voltage ratings suitable for 230/400 VAC (IEC) and 240/480 VAC (UL version) industrial and control circuits. Its C-curve selectivity makes it ideal for applications sensitive to false trips from transient loads. The breaker features a quick-make, quick-break contact mechanism and meets the thermal and magnetic trip performance defined in IEC 60898-1.
Typical Applications
- Motor starter and soft-starter circuits
- Transformer and solenoid protection
- Control panel feeder protection
- Distribution board branch circuits
- Industrial machinery and equipment circuits
Compatibility & Replacements
The Siemens 5SX2 series is a well-established standard in industrial automation. The 5SX2 C10 is compatible with all 18 mm DIN rail mounting systems and can be paired with optional auxiliary contacts, shunt trip coils, and alarm signaling modules to expand functionality. Direct equivalent breakers from other manufacturers may be available; verify voltage and trip curve ratings before installation. Consult the Siemens catalog or your distributor for available accessory options and variant part numbers.
