Siemens 5SY6132-7CC Industrial High Current Circuit Breaker 1P 32A
The Siemens 5SY6132-7CC is a single-pole, 32A miniature circuit breaker (MCB) designed for robust protection in industrial and residential electrical systems. This specific model, part of Siemens' SENTRON series, offers reliable short-circuit and overload protection, ensuring the safety and operational continuity of electrical circuits. Its primary advantages lie in its proven Siemens quality, adherence to international standards like IEC/EN 60898-1 and IEC/EN 60947-2, and its versatile application across various settings. The breaker features a C-type tripping characteristic, which is suitable for loads with moderate inrush currents.
Product Specifications
| Specification | Value |
| :-------------------------------- | :----------------------------------- |
| Manufacturer | Siemens |
| Product Number | 5SY6132-7CC |
| Poles | 1 |
| Rated Current (Inom) | 32A |
| Rated Voltage (AC) | 230/400V |
| Rated Short-Circuit Breaking Capacity (Icn) | 6kA (at 230V), 6kA (at 400V) |
| Rated Short-Circuit Breaking Capacity (Icu) | 15kA (at 230V), 15kA (at 400V) |
| Tripping Characteristic | C |
| Degree of Protection (IP) | IP20 |
| Installation Depth | 70 mm |
| Width in Modular Spacings | 1 |
| Connection Type | Screw Terminals |
| Ambient Temperature (Operating) | -25°C to 55°C |
| Conductor Cross-Section (Solid) | 0.75 – 35 mm² |
| Conductor Cross-Section (Stranded)| 0.75 – 35 mm² |
| Weight | Approx. 0.15 kg |
| Country of Origin | Germany |
Core Features & Market Positioning
The Siemens 5SY6132-7CC leverages Siemens' reputation for reliable and durable electrical components. Its market positioning is defined by its robust build quality and adherence to stringent international safety and performance standards. The C-curve tripping characteristic makes it an ideal choice for circuits that might experience moderate inductive loads or inrush currents, such as those found in motor control applications or lighting circuits with transformers. Unlike B-curve breakers, the C-curve offers a higher tripping threshold for instantaneous overcurrents, preventing nuisance tripping while still providing effective protection against short circuits. This balance of sensitivity and robustness makes the 5SY6132-7CC a preferred option in demanding industrial environments where operational continuity is paramount. Furthermore, its compatibility with a wide range of Siemens system accessories streamlines integration and expands its functional capabilities.
Key Application Scenarios
The 5SY6132-7CC finds its primary utility in applications requiring dependable protection against overcurrents and short circuits. This includes the safeguarding of distribution boards in commercial buildings, industrial control panels, and specialized machinery. Its single-pole design is suited for single-phase circuits, commonly encountered in lighting systems, socket outlets, and control circuits for smaller motors or auxiliary equipment. In industrial settings, it serves to protect individual circuits for pumps, fans, or smaller automation components where precise and reliable tripping is essential. The 6kA breaking capacity is sufficient for many standard installations, though higher capacity breakers are available for systems with greater fault current potential.
Practical System Integration Guidance
Integrating the Siemens 5SY6132-7CC into existing or new electrical systems is straightforward due to its modular design and standard mounting provisions. The breaker is designed for DIN rail mounting, fitting into standard enclosures and distribution panels. Installation requires connecting the power supply to the line terminal and the load to the terminal. The tightening torque for screw terminals should be observed, typically between 2.5 N·m and 3.5 N·m, to ensure a secure and reliable connection. While the 5SY6132-7CC itself does not require programming, it can be integrated into larger control systems where its status can be monitored. Its compatibility with a wide array of Siemens accessories, such as auxiliary switches, alarm contacts, and shunt releases, allows for advanced functionality and system integration, including connection to monitoring systems for remote diagnostics and control.
Operation and Risk Mitigation
Operating the Siemens 5SY6132-7CC involves manual activation or deactivation via the toggle switch. In the event of an overcurrent or short circuit, the internal mechanism automatically trips the breaker, interrupting the circuit to prevent damage to connected equipment and mitigate fire hazards. The clear indication of the toggle's position (up for ON, down for OFF) provides visual confirmation of the circuit status. Risk mitigation is inherent in its design, with the C-curve characteristic providing a balance between sensitivity to faults and resistance to temporary inrush currents. Users must ensure that the breaker is correctly rated for the circuit's load and that ambient conditions do not exceed specified limits to maintain optimal performance and safety. Regular visual inspection for any signs of damage or wear is recommended.
Scalability & Long-Term Value
The Siemens 5SY6132-7CC offers significant long-term value through its robust construction and integration capabilities within the broader Siemens SENTRON product ecosystem. While individual circuit breakers represent a fixed protection level, the scalability comes from the ability to incorporate multiple 5SY6132-7CC units or other SENTRON devices within a comprehensive protection scheme. Compatibility with standard busbars and accessories ensures that upgrades or expansions to electrical infrastructure can be implemented seamlessly. For businesses focused on Industry 4.0 and IIoT, while the 5SY6132-7CC is a conventional device, its integration into smart panels and systems can be facilitated by auxiliary components that provide status feedback, enabling remote monitoring and contributing to predictive maintenance strategies. This ensures that basic protection devices remain relevant within evolving digitalized industrial environments.
Frequently Asked Questions (FAQs)
What is the breaking capacity of the Siemens 5SY6132-7CC?
The Siemens 5SY6132-7CC has a rated short-circuit breaking capacity (Icn) of 6kA according to EN 60898 at 230V and 400V. It also provides a higher breaking capacity (Icu) of 15kA according to IEC 60947-2 at both 230V and 400V. This capacity is suitable for many standard residential and commercial installations, protecting against dangerous fault currents.
Can the Siemens 5SY6132-7CC be used for motor protection?
The C-curve tripping characteristic of the 5SY6132-7CC is generally suitable for circuits with moderate inrush currents, such as those found in some motor applications. However, for critical motor protection where starting currents can be significantly higher, specialized motor protection circuit breakers (MPCBs) with adjustable thermal and magnetic trips are often recommended. These offer more tailored protection against prolonged starting currents and thermal overload.
What is the correct conductor size for the Siemens 5SY6132-7CC?
The Siemens 5SY6132-7CC can accommodate a wide range of conductor sizes. For solid or stranded conductors, the minimum connectable cross-section is 0.75 mm², and the maximum is 35 mm². For finely stranded conductors with ferrule processing, the maximum is 25 mm². It is crucial to ensure proper termination and torque for secure connections.
How does the C-curve tripping characteristic benefit an application?
A C-curve breaker is designed to trip with an overcurrent between 5 to 10 times the rated current. This makes it ideal for applications with moderate inductive loads or inrush currents, like fluorescent lighting or small motors, where it can prevent nuisance tripping while still offering effective protection against short circuits. It provides a balance between sensitivity and immunity to transient overloads.
What is the operating temperature range for the Siemens 5SY6132-7CC?
The Siemens 5SY6132-7CC is designed to operate reliably within an ambient temperature range of -25°C to 55°C. Operating outside these parameters can affect the breaker's performance and lifespan. It's important to ensure adequate ventilation in enclosed spaces to maintain these conditions.
Is the Siemens 5SY6132-7CC suitable for DC circuits?
While primarily designed for AC circuits, the 5SY6132-7CC can be used for DC applications with a reduced rated voltage. The maximum operational voltage at DC is rated at 72V. For higher DC voltages or critical DC applications, specialized DC circuit breakers are recommended.
What does the "CC" in 5SY6132-7CC signify?
The "CC" designation in Siemens product codes often refers to specific variants or packaging, but for this particular model, the core functionality and technical specifications remain consistent with the 5SY6132-7. It is always best to refer to the product datasheet for the most precise details on variant meanings.
Where is the Siemens 5SY6132-7CC manufactured?
The Siemens 5SY6132-7CC is manufactured in Germany. This origin is often associated with high manufacturing standards and product quality within the electrical industry. Siemens maintains rigorous quality control throughout its production processes.
Can I install the Siemens 5SY6132-7CC vertically or horizontally?
The Siemens 5SY6132-7CC allows for mounting in any position, offering flexibility in installation. Whether it's installed vertically, horizontally, or even upside down on a DIN rail, its operational integrity and protection capabilities are maintained, simplifying electrical panel design.
What accessories are compatible with the Siemens 5SY6132-7CC?
The Siemens 5SY6132-7CC is part of the SENTRON series and is compatible with a wide range of associated accessories. These include auxiliary switches, alarm contacts, shunt releases, and undervoltage releases, which can enhance functionality and integrate the breaker into more complex control and monitoring systems.
