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5SY74408CC | Betagard MCB 40 A, 4 Pole, 15 kA, D-Curve – Siemens
Product Overview
The 5SY74408CC is a high-performance Miniature Circuit Breaker (MCB) from Siemens’ Betagard series. Designed for reliable protection in electrical installations, this MCB is ideal for residential, commercial, and industrial applications. It features a 4-pole configuration, a rated current of 40 A, and a breaking capacity of 15 kA, ensuring robust protection against overloads and short circuits.
Key Features
- Rated Current: 40 A
- Number of Poles: 4 Pole
- Breaking Capacity: 15 kA
- Trip Curve: D-Curve (for high inrush current applications)
- Voltage Rating: 230/400 V AC
- Mounting Type: DIN Rail Mounting
- Standards Compliance: IEC/EN 60898-1, IEC/EN 60947-2
- Terminal Type: Screw Clamp
- Operating Temperature: -25°C to +55°C
- Mechanical Life: 20,000 operations
- Electrical Life: 10,000 operations
- Protection Class: IP20 (when installed in a suitable enclosure)
Applications
The 5SY74408CC MCB is suitable for a wide range of applications, including:
- Residential electrical distribution boards
- Commercial and industrial power distribution systems
- Protection of circuits with high inrush currents (e.g., motors, transformers)
- General-purpose circuit protection in low-voltage installations
Advantages
- High breaking capacity ensures reliable protection in demanding environments.
- D-Curve trip characteristic provides optimal protection for circuits with high inrush currents.
- Compact design allows for easy installation in standard distribution boards.
- Durable construction ensures long service life and consistent performance.
- Complies with international standards for safety and reliability.
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Current (In) | 40 A |
| Rated Voltage (Ue) | 230/400 V AC |
| Breaking Capacity (Icn) | 15 kA |
| Trip Curve | D-Curve |
| Number of Poles | 4 |
| Mounting | DIN Rail (35 mm) |
| Terminal Type | Screw Clamp |
| Operating Temperature | -25°C to +55°C |
| Mechanical Life | 20,000 operations |
| Electrical Life | 10,000 operations |
| Protection Class | IP20 |
Safety and Compliance
The 5SY74408CC MCB complies with international standards, including IEC/EN 60898-1 and IEC/EN 60947-2, ensuring high levels of safety and reliability. It is designed to provide effective protection against electrical faults, making it a trusted choice for professionals in the electrical industry.
Warranty and Support
Siemens offers a standard warranty on the 5SY74408CC MCB, backed by their global support network. For technical assistance or warranty claims, customers can contact Siemens’ customer service or authorized distributors.
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