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Help Center600/5A Ratio Current Transformer MES-62/40 With Wound Primary Design
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As a dedicated manufacturer with over a decade of experience in precision electrical measurement, Jinhua Dika Electrical Equipment Co., Ltd. is proud to present our MES-62/40 Ratio Current Transformer. Engineered for reliability and accuracy, this 600/5A transformer is a cornerstone component for modern energy management and protection systems. Our commitment to stringent quality control, evidenced by our comprehensive management certifications, ensures that every unit delivers consistent performance, helping our global clientele from North America to Southeast Asia achieve precise current measurement and enhanced system safety.
This current transformer is designed to accurately step down high primary currents to a standardized, safer secondary level for metering and protection devices. The wound primary design is a key feature, offering superior performance in applications where precise measurement of lower magnitude currents is critical. We understand that in B2B applications, consistency, durability, and accuracy are non-negotiable. Therefore, our MES-62/40 is built to withstand demanding industrial environments while maintaining its specified accuracy class over a wide range of operating conditions.
Key Technical Features & Specifications:
- Precision Wound Primary: Unlike simpler bar-type designs, the wound primary coil allows for excellent performance at lower primary current levels, ensuring high accuracy even when the load is not at full capacity. This design minimizes phase and ratio errors.
- Wide Accuracy Range: Available in standard accuracy classes of 0.5, 1.0, and 3.0 to suit various application needs, from revenue-grade metering to general protection and monitoring.
- Robust Construction: Featuring a core made from high-grade, low-loss silicon steel and vacuum-encapsulated windings to protect against moisture, dust, and corrosion, ensuring long-term stability.
- Flexible Mounting & Configuration: Designed for easy integration, it supports panel mounting or optional DIN rail mounting kits. Terminal configurations can be customized upon request to fit specific panel layouts.
- Thermal & Electrical Safety: Built with high-temperature insulation materials and designed to handle short-time overcurrent conditions without damage, safeguarding downstream equipment.
Detailed Technical Parameters:
| Parameter | Specification |
| Model | MES-62/40 |
| Rated Primary Current (Ipn) | 600 A |
| Rated Secondary Current (Isn) | 5 A |
| Rated Frequency | 50 / 60 Hz |
| Standard Accuracy Class | 0.5, 1.0, 3.0 |
| Rated Burden | 5 VA, 10 VA, 15 VA (Selectable) |
| Insulation Voltage | 3 kV / 50 Hz / 1 min |
| Operating Temperature Range | -25°C to +70°C |
| Primary Winding Type | Wound (Bar) |
Advantages for Your Business:
- Enhanced Metering Accuracy: Reduces billing discrepancies and improves energy audit precision, leading to better cost control for end-users.
- Reliable System Protection: Provides accurate current signals to protection relays, enabling faster and more reliable fault detection and isolation.
- Reduced Maintenance Costs: The durable, encapsulated design minimizes the risk of failure, lowering total cost of ownership over the product's lifespan.
- Global Compliance Readiness: Manufactured in a facility adhering to international quality management standards, facilitating integration into projects with strict compliance requirements.
- Design Flexibility: Customizable options for burden, accuracy class, and mounting allow for a tailored solution that fits your specific panel design and application need.
Trust in a partner with a proven track record. Jinhua Dika Electrical Equipment Co., Ltd. exports to diverse markets worldwide, supported by an annual export value reflecting our reliability and scale. Our products ship from major Chinese ports like Shanghai and Ningbo, ensuring efficient logistics. The MES-62/40 is more than a component; it's a commitment to measurement integrity. By choosing our current transformer, you invest in a product built for accuracy, backed by a manufacturer dedicated to quality, and supported by a global supply chain. Contact us today to discuss your requirements, request samples, or learn more about our full range of electrical measurement solutions.
Frequently Asked Questions (FAQ)
Q1: What is the main advantage of a wound primary design over a bar-type design?
A: The wound primary design uses multiple turns of conductor, which provides a stronger magnetic field for a given primary current. This results in better performance at lower current levels, higher accuracy, and reduced errors compared to a single-turn bar type, especially when the primary current is significantly below the rated value.
Q2: Can this 600/5A CT be used for both metering and protection applications?
A: Yes, it can. The availability of different accuracy classes (like 0.5 for metering and 1.0 or 3.0 for protection) allows it to serve both functions. However, it is crucial to select the appropriate accuracy class and burden for the specific application to ensure optimal performance.
Q3: Is the MES-62/40 suitable for installation in outdoor or harsh environments?
A: The standard model is designed for indoor use. For outdoor or harsh environments (high humidity, dust, corrosion), we can provide models with reinforced insulation and higher IP (Ingress Protection) ratings upon request. Please specify your environmental conditions when inquiring.
Q4: What does the "burden" rating (e.g., 5 VA) mean, and how do I choose the right one?
A: The burden rating indicates the maximum load (in Volt-Amperes) the transformer can supply to the connected secondary circuit (meters, relays) while maintaining its stated accuracy. You must calculate the total burden of all connected devices and choose a CT with a rated burden equal to or greater than that sum.
Q5: Do you provide calibration certificates with your current transformers?
A> Calibration certificates are available as an optional service. Standard units are tested to ensure they meet the declared accuracy class. For projects requiring documented traceability, we can supply individual calibration certificates from our lab upon request.
Q6: What is the typical lead time for an order of these transformers?
A: Lead time depends on order quantity and specific customization. For standard configurations, we typically maintain stock for moderate volumes. For large or customized orders, production lead time will be provided with your formal quotation. Our multiple shipping port options help expedite delivery.
Q7: Can the secondary terminals be configured differently?
A: Yes. While we offer a standard terminal block configuration, alternative terminal types (screw clamp, plug-in) or arrangements can be discussed for custom orders to match your panel design requirements.
Q8: How does the accuracy class (0.5 vs 1.0) affect the performance and price?
A> A lower number indicates higher accuracy. A Class 0.5 CT has tighter tolerances on ratio and phase errors than a Class 1.0, making it suitable for precise energy metering. Higher accuracy typically involves more precise manufacturing and materials, which may influence the price. We recommend selecting the class that meets your application's minimum standard to optimize cost.
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