Panel building with Siemens S7-1500 PLC
- Safe design & calculation
- In accordance with NEN-EN 61439
- Tested and documented quality
Safe design for maximum short-circuit resistance
An SCCR calculation in panel building determines how resistant a control cabinet is to short-circuit currents. This calculation is essential to meet safety standards and to prevent damage to installations or components. Kwadrant IA designs control cabinets where the short-circuit resistance (SCCR) is carefully determined according to NEN-EN 61439 and, if applicable, UL 508A. This ensures that each panel is electrically safe, reliable and built in accordance with international requirements.
Panel Building Pioneers for Mechanical Engineering
With the precision of a watchmaker and the agility of an acrobat, Kwadrant IA is committed to creating custom electrical panels for mechanical engineering. As a resilient player in panel building, we move quickly without sacrificing quality or durability. Step into our world of innovation and discover how we can take your mechanical engineering projects to the next level.
What is an SCCR calculation in panel building
The Short-Circuit Current Rating (SCCR) calculation determines the maximum short-circuit current that a control box can safely withstand without structural or electrical damage. In panel building, this calculation is mandatory to ensure that all components – from fuses to busbar systems – continue to function within safe limits in the event of a short circuit.
Kwadrant IA performs this calculation according to international guidelines and uses the results to select appropriate components. Each panel is designed in EPLAN P8/Pro Panel, with electrical schematics and protection devices checked directly for short-circuit resistance.
Important standards and guidelines
NEN-EN 61439
This standard provides the basis for design and construction of distribution and control cabinets. It describes requirements for electrical safety, heat dissipation and short-circuit resistance. Each Kwadrant IA panel is designed in accordance with NEN-EN 61439 and provided with a declaration of conformity.
UL 508A
Additional requirements apply for exports to North America. UL 508A requires that the SCCR rating be clearly stated on the cabinet nameplate. Kwadrant IA is a UL Listed Panel Shop and can build panels that meet this standard.
NEN 1010 and IEC 60947-2
NEN 1010 regulates the general safety of electrical installations, while IEC 60947-2 provides standards for protection devices such as circuit breakers and fuses. Both are relevant when selecting short-circuit resistant components.
CONTACT US
Applications in industry
The determination of short-circuit resistance plays an important role in high-power industrial plants. Examples include:
- Pump systems and water management: short-circuit protection in motor controls.
- Production lines and machine building: Safety at high starting currents.
- Food & beverage: reliable operation under continuous load.
- Marine & offshore: increased protection under variable mains voltage.
- Logistics and robotics: Protection of high-speed circuits and I/O networks.
In each of these sectors, proper SCCR calculation prevents unwanted downtime and ensures compliance with international safety guidelines.
Advantages of panel construction with SCCR calculation
- Higher safety: Prevents short-circuit damage and reduces risk to operators.
- Reliable operation: Proper component selection increases operating reliability.
- Regulatory compliance: Conforms to NEN-EN 61439 and UL 508A.
- Efficient maintenance: Clearly documented SCCR value simplifies inspection.
- International applicability: suitable for export to Markets with strict safety requirements.
Kwadrant IA ensures that each cabinet is not only technically compliant, but also fully traceable in design and documentation.
The process from design to commissioning
- Design and calculation. – The SCCR value is calculated based on component selection, protection and circuit layout.
- Engineering and documentation – All data is recorded in EPLAN, including simulation of short-circuit currents.
- Construction and assembly – Panel construction according to NEN-EN 61439 with carefully selected components.
- Test phase (FAT/SAT). – Verification of short-circuit resistance, insulation resistance and operation of protections.
- Commissioning and delivery – The results are recorded in a test report and declaration of conformity.
With this systematic process, Kwadrant IA ensures that each panel is safe, tested and ready for industrial deployment.
Years of experience in the field of industrial automation
Industrial automation with international standards
Industrial automation requires more than just a correctly constructed panel. We start with the architecture of the system and make conscious choices in component selection, standardization and scalability. By fully mastering engineering, panel construction and integration, we realize control systems that perform reliably in demanding industrial environments. From modular construction to international compliance, every detail is focused on quality, longevity and manageable Total Cost of Ownership.
We do not build standard solutions, but technically sound systems that match the complexity of modern mechanical engineering.
Kwadrant IA as your partner for panel construction with SCCR calculation
Kwadrant IA specializes in panel construction with correct SCCR calculation, focusing on safety, reliability and standards compliance. Our engineers ensure that each cabinet can withstand the short-circuit currents that can occur within the installation. We work in accordance with NEN-EN 61439 and carry out projects according to UL 508A for export to the US and Canada.
With in-depth knowledge of hardware engineering, protection components and testing procedures (FAT/SAT), Kwadrant IA provides control cabinets that meet the most stringent short-circuit resistance requirements.
Contact us for technical advice or a free quote.
Frequently asked questions about Panel construction with SCCR calculation (short-circuit resistance)
What does SCCR calculation mean in panel construction?
SCCR (Short-Circuit Current Rating) indicates the maximum short-circuit current a panel can withstand without danger or damage. The value is determined based on the components, wiring and protective devices in the panel.
How is the SCCR value calculated?
The calculation is done by combining the rated short-circuit values of all components according to NEN-EN 61439 or UL 508A. This involves looking at the weakest link in the circuit to determine a safe limit.
Why is short-circuit resistance important in industrial panels?
A correct SCCR rating prevents a short circuit from causing damage, fire or danger to personnel. It ensures that protective components such as fuses and circuit breakers operate correctly at high currents.
What standards apply to SCCR in panel construction?
Important standards include NEN-EN 61439 for panel construction, NEN 1010 for electrical safety, and UL 508A for North American exports. These standards describe requirements for design, test and marking.
How does Kwadrant IA test the short-circuit resistance of a panel?
During the FAT (Factory Acceptance Test), electrical circuits are tested for insulation, protection and functionality. During the SAT (Site Acceptance Test), operation is checked in the field environment.
