The CH4-12-208 contact box (rated current 1600~2000A) is a high-performance electrical component designed for 12KV medium voltage switchgear systems. With a focus on reliability, safety, and durability, it is widely applied in industrial, commercial, and utility environments.
This guide provides a comprehensive overview covering technical parameters, technical advantages, troubleshooting, and performance indicators, helping engineers, technicians, and procurement teams understand, install, and maintain the product effectively.
The CH4-12-208 Contact Box is engineered for high-current and high-reliability applications:
Rated Current: 1600~2000A, suitable for medium-duty operations.
Voltage Rating: 12KV for medium voltage switchgear systems.
Material: High-grade epoxy resin combined with conductive metals for superior insulation and mechanical strength.
Thermal Management: Optimized for heat dissipation under continuous load.
Compliance: Meets IEC 62271 standards for electrical and mechanical performance.
Feature | Specification | Benefit |
---|---|---|
Rated Current | 1600~2000A | Reliable medium-load handling |
Rated Voltage | 12KV | Compatible with standard switchgear panels |
Insulation Material | Epoxy Resin | High dielectric strength, durability |
Thermal Management | Heat Dissipation Design | Reduces overheating risk |
Dimensions | 260 x 180 x 130 mm | Compact and easy to install |
Weight | 8.5 kg | Lightweight for convenient handling |
Connection Type | Standard Terminals | Secure electrical connections |
Mechanical Strength | IEC 62271 Compliant | Resistant to vibration and mechanical stress |
Operating Temperature | -40°C to +120°C | Reliable in extreme environments |
Environmental Compliance | RoHS Certified | Eco-friendly and sustainable |
The CH4-12-208 Contact Box stands out due to its robust design and advanced features:
Reliable Current Handling: Supports 1600~2000A continuously with minimal electrical losses.
High Insulation Strength: Epoxy resin ensures superior dielectric performance and reduces risk of electrical faults.
Thermal Stability: Heat dissipation design maintains operational temperature within safe limits.
Mechanical Durability: Complies with IEC 62271 standards for vibration, shock, and mechanical stress.
Compact and Lightweight: Facilitates easier installation and integration into medium voltage switchgear systems.
Maintenance-Friendly: Smooth surface and standardized terminals simplify inspection and cleaning.
Environmental Compliance: RoHS-certified materials ensure eco-friendly manufacturing.
Understanding the key specifications is essential for installation, operation, and maintenance:
Parameter | Value | Notes |
---|---|---|
Rated Current | 1600~2000A | Medium load industrial applications |
Rated Voltage | 12KV | Compatible with medium voltage switchgear |
Insulation Level | 42/75KV | Ensures high dielectric strength |
Short-Circuit Withstand Current | 25kA | Supports short-term fault conditions |
Mechanical Strength | IEC 62271-200 | Withstands vibration and shock |
Operating Temperature | -40°C to +120°C | Suitable for extreme conditions |
Connection Method | Bolt-on terminals | Secure and reliable electrical connection |
Dielectric Loss | ≤0.5% | Efficient energy performance |
Material | Epoxy resin + Copper | Durability and high conductivity |
Mounting Type | Standard switchgear panel | Easy integration |
Proper installation ensures safety, performance, and longevity:
Inspect the contact box for physical damage or contamination.
Ensure the switchgear system is fully de-energized.
Prepare necessary tools and personal protective equipment (PPE): insulated gloves, torque wrench, screwdrivers, and goggles.
Positioning: Align the contact box in the designated mounting slot.
Connecting Terminals: Tighten bolts to the manufacturer-recommended torque.
Insulation Testing: Use a megohmmeter to check insulation resistance before powering the system.
Power-On Test: Energize the system and monitor for heat, vibration, or abnormal noise.
Avoid over-tightening screws to prevent damage to epoxy resin.
Maintain proper airflow around the contact box to optimize heat dissipation.
Verify that the rated current matches the system load.
Effective troubleshooting ensures minimal downtime and operational safety:
Problem | Possible Cause | Solution |
---|---|---|
Overheating | Excessive load or blocked heat dissipation | Reduce load, ensure airflow |
Sparking or Arcing | Loose or corroded terminals | Tighten and clean connections |
Insulation Damage | Physical impact or aging | Replace contact box |
Electrical Noise | Poor terminal contact | Reconnect terminals securely |
Corrosion | Moisture exposure | Clean and apply protective coating |
Overheating: Monitor load and ensure heat sink areas are unobstructed.
Loose Connections: Regularly check torque on terminals.
Insulation Degradation: Conduct insulation resistance tests and replace units below threshold.
Regular maintenance prolongs service life and enhances safety:
Task | Frequency | Notes |
---|---|---|
Visual Inspection | Monthly | Check for cracks, discoloration, or contamination |
Terminal Torque Check | Quarterly | Ensure secure electrical connections |
Insulation Resistance Test | Semi-Annually | Verify dielectric strength with megohmmeter |
Cleaning | Monthly | Use dry brush or compressed air; avoid chemicals |
Full System Check | Annually | Comprehensive inspection of mechanical and electrical integrity |
Keep surrounding areas dust-free and dry.
Replace damaged components immediately to prevent faults.
Record all maintenance activities in logs for traceability.
Performance indicators are essential for assessing reliability and efficiency:
Indicator | Specification | Standard |
---|---|---|
Insulation Resistance | ≥100 MΩ | IEC 62271-1 |
Dielectric Strength | 42/75KV | IEC 62271-1 |
Short-Circuit Withstand | 25kA | IEC 62271-100 |
Thermal Endurance | 120°C | IEC 62271-100 |
Mechanical Shock Resistance | 5g | IEC 62271-200 |
Vibration Tolerance | 2~150 Hz | IEC 62271-200 |
Operating Life | ≥20 years | Industrial standard |
Energy Loss | ≤0.5% | Efficiency standard |
Terminal Tightening Torque | 120~150 N·m | Manufacturer specification |
Environmental Compliance | RoHS | ISO 14001 & IEC standards |
Reliable Medium Current Handling: Supports 1600~2000A.
Durable Insulation: Epoxy resin ensures safety and long-term reliability.
Thermal Efficiency: Heat dissipation prevents overheating.
Mechanical Strength: Resistant to vibration, shock, and stress.
Ease of Installation: Compact and lightweight design.
Maintenance-Friendly: Simple inspection and cleaning.
Eco-Friendly Materials: RoHS-certified and sustainable manufacturing.
Versatile Applications: Suitable for industrial, utility, and commercial systems.
Report minimal downtime and stable performance under continuous operation.
Highlight the CH4-12-208’s durability and low maintenance requirements.
Value compact design, thermal stability, and reliability under moderate loads.
Sample Testimonial:
"The CH4-12-208 Contact Box has proven to be a reliable component for our medium voltage switchgear. Installation was straightforward, and performance under load has been consistent. Maintenance is easy, making it ideal for our industrial applications." – Electrical Engineer, Industrial Plant
The CH4-12-208 Contact Box (rated current 1600~2000A) is a high-quality, reliable component for 12KV medium voltage switchgear systems. It offers:
Safe and stable electrical connectivity
Robust epoxy insulation
Efficient thermal management
Compliance with international safety and environmental standards
Long-term durability and low maintenance requirements
By following installation, maintenance, and troubleshooting guidelines, users can maximize performance and reliability, making the CH4-12-208 an essential component for industrial, utility, and commercial switchgear applications.
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E-mail: sales@vcbbreaker.com
Address: 66 Punan Road, Yueqing Economic Development Zone, Zhejiang, China
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