E50. N13-474. NT0
Electronicon E50. N13-474. NT0 470uF 1100V DC-link capacitor with high ripple current capability for industrial inverters.
Product Overview
Description
The E50. N13-474. NT0 is a high-performance DC-link capacitor designed for demanding power electronics applications.
Featuring Electronicon's dry filling technology and self-healing properties for exceptional reliability and long lifetime.
Ideal for solar inverters, motor drives, and industrial power supplies requiring high ripple current handling.
Product Series
E
Primary Application
Solar PV inverters
Key Features
- Dry filling technology - no oil leakage risk
- Self-healing properties for high reliability
- High ripple current capability up to 45A
- Low ESR for minimal power losses
- Flexible mounting in any position
- Long lifetime 100,000 hours rated
- IEC 61071 compliant design
Specifications
| Capacitance | 470uF |
|---|---|
| VoltageRating | 1100V DC |
| RippleCurrent | 45A @ 10kHz, 70C |
| ESR | 1.2mOhm @ 10kHz |
| TemperatureRange | -40C to +85C |
| Lifetime | 100,000 hours @ 70C, Un |
| Mounting | M10 Stud Mount |
| Dimensions | 75mm x 145mm |
| Weight | 550g |
Applications
Solar PV inverters
Renewable energy systems
Wind turbine converters
Power conversion and supply
Motor drive DC-links
Motor drive and control systems
UPS systems
Electronic system design
Welding equipment
Electronic system design
Industrial power supplies
Industrial automation and control
FAE Expert Insights
"In my 15 years supporting industrial drive applications, I consistently recommend the E50. N13-474. NT0 for medium-power inverter designs. The 470uF capacitance at 1100V provides an excellent balance for 400-480V AC input drives. I particularly appreciate the 45A ripple current rating which handles IGBT switching frequencies up to 16kHz without excessive heating. The dry filling technology eliminates the oil leakage concerns I've seen with traditional capacitors in harsh industrial environments. For thermal design, I recommend maintaining the hot spot temperature below 75C to achieve the full 100,000-hour lifetime. The M10 stud mounting provides excellent heat transfer to the heatsink when properly torqued. This capacitor has proven reliable in numerous solar inverter installations I've supported."
Excellent balance of capacitance and ripple current for 400V class drives
— Michael Schneider, BeiLuo
Frequently Asked Questions
What is the maximum ripple current for the E50. N13-474. NT0?
The E50. N13-474. NT0 is rated for 45A ripple current at 10kHz and 70C hot spot temperature. This rating is based on IEC 61071 standard conditions. At lower frequencies, the ripple current capability is slightly reduced due to higher ESR.
Calculate your application's actual ripple current requirements and ensure adequate margin below the rated 45A value.
How should I mount the E50. N13-474. NT0 for optimal thermal performance?
For optimal thermal performance, mount the E50. N13-474. NT0 using the M10 stud to a heatsink or chassis with good thermal conductivity. Use the provided insulation washer to maintain electrical isolation while ensuring thermal contact.
Follow the mounting guidelines in the datasheet and consider thermal modeling for high-ripple current applications.
What is the expected lifetime of the E50. N13-474. NT0 in typical applications?
The E50. N13-474. NT0 is rated for 100,000 hours lifetime at 70C hot spot temperature and rated voltage. Using the Arrhenius equation, lifetime approximately doubles for every 10C decrease in temperature.
Design for hot spot temperatures below 70C to achieve maximum capacitor lifetime in your application.
Can I use the E50. N13-474. NT0 for 480V AC input applications?
Yes, the E50. N13-474. NT0 with 1100V DC rating is well-suited for 480V AC input applications. A 480V AC line voltage rectifies to approximately 680V DC (480V x 1.414), providing 62% voltage margin (1100V/680V). This margin is adequate for most industrial applications, though some designers prefer higher margins for extreme conditions. The capacitor handles the voltage ripple from the rectifier and inverter switching. For 480V applications with significant line transients or regenerative loads, consider the 1100V rating provides good safety margin. The 470uF capacitance is suitable for 30-75kW drives depending on switching frequency and allowable ripple. Contact our FAE team for application-specific recommendations.
Verify your maximum DC bus voltage including transients to ensure adequate voltage margin for reliable operation.
What are the key differences between the E50. N13-474. NT0 and electrolytic capacitors?
The E50. N13-474. NT0 film capacitor offers significant advantages over aluminum electrolytic capacitors: 1) Much longer lifetime - 100,000 hours vs typical 10,000-20,000 hours for electrolytics, 2) Higher ripple current capability - 45A vs typically 10-20A for equivalent electrolytic.
Consider film capacitors for applications where reliability, lifetime, and maintenance-free operation justify the higher initial cost.
How do I calculate the number of capacitors needed for my DC-link design?
To determine the number of E50. N13-474. NT0 capacitors needed: 1) Calculate required capacitance based on allowable voltage ripple, 2) Calculate ripple current per capacitor, 3) Consider thermal constraints, 4) Evaluate physical space and mounting requirements.
Contact our application engineering team for assistance with DC-link capacitor bank design and sizing calculations.