Static Load Test Bench for IEC 61439-5 Electrical Enclosure Mechanical Testing

With the increasing demand for reliable electrical distribution systems, the mechanical strength of electrical enclosures has become an important factor in ensuring long-term safety and durability.

Low voltage switchgear assemblies, meter boxes, cable distribution boxes, and prefabricated substations may experience mechanical stress during installation, transportation, and daily operation. Without sufficient structural strength, problems such as enclosure deformation, door damage, and reduced protection performance may occur.

To verify mechanical reliability, international standards including IEC 61439-5, IEC 62208, IEC 60297-1, and IEC 61330 define requirements for enclosure strength and mechanical performance testing.

The Static Load Test Bench SN2601 is designed to provide accurate and repeatable mechanical load testing solutions for electrical equipment manufacturers, testing laboratories, and certification organizations.

A Static Load Test Bench is specialized equipment used to evaluate the mechanical strength of electrical enclosures and assemblies by applying controlled forces to specific positions of the test specimen.

The system can simulate real mechanical stresses by applying loads to:

• Enclosure top surfaces
• Side panels
• Doors
• Mounting points
• Structural components

During testing, the equipment controls force, displacement, and holding time while recording test data for evaluation.

It is widely used for IEC 61439-5 mechanical strength testing of low voltage electrical equipment.

The SN2601 Static Load Test Bench is mainly applied for mechanical performance verification of:

Including:

• Single-phase meter boxes
• Multi-unit meter boxes
• Electrical distribution boxes

Including:

• Metal enclosures
• Non-metal enclosures
• Cable distribution cabinets
• Switchgear assemblies

Used to evaluate structural stability and mechanical resistance.

The system is suitable for:

• Electrical equipment manufacturers
• Third-party testing laboratories
• Research institutions
• Certification organizations

The Static Load Test Bench is designed according to international standards, including:

IEC 61439-5
Low-voltage switchgear and controlgear assemblies — assemblies for public electricity distribution.

IEC 62208
General requirements for empty enclosures for low-voltage switchgear and controlgear assemblies.

IEC 60297-1
Mechanical structures for electronic equipment, including cabinet and rack rigidity requirements.

IEC 61330
Mechanical performance requirements for prefabricated substations.

The SN2601 supports multiple mechanical tests in one system:

Applies specified pressure on enclosure surfaces to verify load-bearing capability and deformation resistance.

Applies horizontal forces to evaluate structural stability against twisting deformation.

Tests door structures and hinges under specified mechanical loads.

Evaluates the strength and reliability of threaded inserts and lifting points.

Verifies the overall stiffness of electrical cabinets and racks.

The system adopts PLC control with touchscreen operation, allowing users to easily set test parameters and complete automatic testing procedures.

Equipped with:

• Two horizontal loading mechanisms
• One vertical loading mechanism

The multi-directional loading structure allows flexible testing of different enclosure designs.

The servo-driven electric cylinder system provides:

• Stable force application
• High measurement accuracy
• Repeatable test results

The adjustable mounting platform supports different types and sizes of electrical enclosures.

The SN2601 Static Load Test Bench provides an efficient solution for manufacturers who need to verify electrical enclosure mechanical performance according to international standards.

Advantages include:

✔ IEC 61439-5 compliance testing capability
✔ Multi-function mechanical testing platform
✔ Automatic force control and data recording
✔ Suitable for various enclosure types
✔ Reliable solution for laboratory and production environments

It can test electrical enclosures, meter boxes, distribution cabinets, switchgear assemblies, and prefabricated substations.

The system supports mechanical testing requirements related to IEC 61439-5, IEC 62208, IEC 60297-1, and IEC 61330.

Yes. The SN2601 integrates multiple functions including static load, torsion, door strength, insert axial force, and rigidity testing.

Mechanical strength is essential for ensuring the reliability of electrical distribution equipment.

The Static Load Test Bench SN2601 provides accurate mechanical performance evaluation for electrical enclosures, meter boxes, cabinets, and prefabricated substations.

With intelligent control, flexible loading mechanisms, and compliance with international standards, it is an ideal testing solution for electrical equipment manufacturers and laboratories worldwide.