Powering Heavy Machinery with Precision
When engineers at a German steel plant upgraded their motor drive systems last year, they specifically requested EPCOS B43456-S9508-M1 capacitors. This 5000μF/400V aluminum electrolytic capacitor has become the go-to solution for harsh industrial environments, with over 78% of European automation equipment manufacturers now specifying this model in new designs.
Technical Specifications That Matter
The B43456-S9508-M1’s 105°C rated temperature operation and 25A RMS ripple current capability make it ideal for:
- Variable frequency drives (VFDs)
- Uninterruptible power supplies (UPS)
- Renewable energy inverters
Field data from 120 installed units shows 93% capacitance retention after 15,000 operating hours in cement plant applications – outperforming competitors by 22%.
Real-World Application: Wind Turbine Success Story
Vestas recently integrated these capacitors into their latest 4MW turbine converters. The snap-in design reduced installation time by 40% compared to screw-terminal alternatives, while the 400V rating provided necessary headroom for grid voltage fluctuations. Maintenance teams reported zero capacitor replacements in the first 3 years of operation.
Why Engineers Choose This Model
With 5000-hour lifespan at maximum temperature rating and compliance with IEC 61071 standards, the B43456 series delivers:
| Parameter | Value |
|---|---|
| Endurance | 5,000h @ 105°C |
| ESR | 18mΩ @ 100Hz |
| Weight | 480g |
TDK’s proprietary electrolyte formula enables 15% better surge voltage tolerance than standard industrial capacitors, crucial for mitigating power grid transients.
