Siemens 5SV3347-6KK01 Miniature Circuit Breaker (MCB) 4P 80A 30mA
The Siemens 5SV3347-6KK01 is a high-performance Miniature Circuit Breaker (MCB) designed for robust electrical protection in demanding industrial environments. This 4-pole, 80 Ampere, 30 milliampere residual current device (RCD) offers superior safety and reliability, safeguarding personnel and equipment from overcurrents and earth faults. Its advanced tripping characteristics and compact design make it an ideal choice for modern electrical installations requiring maximum protection and space efficiency.
Product Specifications
| Specification | Value |
| :--------------------- | :-------------------------- |
| Product Type | Miniature Circuit Breaker |
| Manufacturer | Siemens |
| Model Number | 5SV3347-6KK01 |
| Number of Poles | 4 |
| Rated Current (In) | 80 A |
| Rated Residual Current | 30 mA |
| Breaking Capacity (Icn)| 6 kA |
| Tripping Curve | C |
| Voltage Rating (Ue) | 400 V AC |
| Frequency | 50/60 Hz |
| Protection Class | IP20 |
| Operating Temperature | -25°C to +55°C |
| Mounting Type | DIN Rail |
Core Features & Market Positioning
The Siemens 5SV3347-6KK01 MCB distinguishes itself through its reliable earth fault protection, a critical feature for preventing electric shock and mitigating fire hazards. Its C-curve tripping characteristic ensures it can handle moderate inrush currents common in industrial motor applications without nuisance tripping, while still providing swift protection against short circuits. This balance of sensitivity and robustness positions it as a premium component for applications where safety and operational continuity are paramount. Siemens' reputation for quality engineering further solidifies its market standing, assuring users of its durability and consistent performance in harsh conditions. The 30mA residual current sensitivity is a key differentiator for personnel protection, meeting stringent safety regulations.
Key Application Scenarios
This 4-pole MCB is extensively utilized in industrial power distribution systems, protecting main feeders and branch circuits. It is particularly well-suited for protecting equipment in manufacturing plants, process control facilities, and large commercial buildings where the risk of earth leakage is significant. Typical applications include safeguarding motors, transformers, and heavy machinery, as well as providing essential protection for lighting circuits and power outlets in environments prone to moisture or dust. Its inclusion of residual current protection makes it a vital component for compliance with electrical safety standards in sensitive areas. The 80A rating allows for significant load handling capacity in these industrial settings.
Practical System Integration Guidance
Integrating the Siemens 5SV3347-6KK01 MCB into existing or new electrical panels is straightforward due to its standard DIN rail mounting mechanism. Ensure proper termination of all four poles using appropriate torque settings for the screw terminals to guarantee a secure connection and prevent overheating. For optimal performance, wire connections should be made with conductors of the correct gauge, compatible with the 80A rating. It's crucial to verify the incoming power supply phase sequence and neutral conductor are correctly connected to their respective terminals. Following local electrical codes and manufacturer guidelines during installation is essential for safe and compliant operation.
Operation and Risk Mitigation
The primary function of the 5SV3347-6KK01 is to automatically disconnect the electrical circuit when it detects an imbalance between the live and neutral conductors, indicating an earth fault. This rapid disconnection minimizes the risk of electric shock and prevents damage to connected equipment. In the event of an overcurrent or short circuit, the MCB will trip, interrupting the power flow. To reset the breaker after a fault, ensure the fault condition has been rectified, then firmly push the toggle switch to the "ON" position. Common troubleshooting involves identifying the cause of the trip – whether it's a persistent earth leakage, an overload, or a short circuit – before attempting a reset.
Scalability & Long-Term Value
The modular design of Siemens MCBs, including the 5SV3347-6KK01, ensures excellent compatibility with other Siemens circuit protection devices and switchgear, facilitating straightforward system expansion or upgrades. Its robust construction is engineered for a long service life, minimizing replacement costs and ensuring sustained operational reliability. For facilities moving towards digital transformation, this MCB can be integrated into smart electrical distribution systems with appropriate accessories, enabling remote monitoring and data logging capabilities, thereby contributing to predictive maintenance strategies and enhanced energy management within an Industrial IoT (IIoT) framework.
Frequently Asked Questions
What is the tripping characteristic of the Siemens 5SV3347-6KK01?
The Siemens 5SV3347-6KK01 features a Type C tripping curve. This characteristic is designed to allow for higher inrush currents without premature tripping. It is commonly used for inductive loads like motors and transformers.
Why is the 5SV3347-6KK01 a 4-pole breaker?
This MCB is a 4-pole device to provide protection across all three phases and the neutral conductor. It is essential for three-phase systems to ensure complete isolation and protection. This is crucial for safety and preventing electrical damage in industrial settings.
What is the significance of the 30mA residual current rating?
A 30mA residual current rating signifies high sensitivity for earth fault detection. This level is critical for providing personal protection against electric shock. It trips quickly when even a small current leaks to earth.
