Yaskawa CE B 400V470UF

Technical Dossier

Product Details And Specifications

Yaskawa CE B Series Technical Notes

The Yaskawa CE B Series aluminum electrolytic capacitors are core passive components deployed across Yaskawa's AC drive and servo amplifier product lines, including the G7, F7, E7, and CIMR-series variable frequency drives. These capacitors serve as DC bus energy storage and filtering elements in the main power circuit. Their rated voltage and capacitance values are application-specific, matched to the drive's input voltage class (200V, 400V) and power rating (kW class). In heavy industrial environments — petrochemical plants, nuclear auxiliary systems, offshore platforms, steel rolling mills, and continuous process refineries — these capacitors are subject to thermal cycling, ripple current stress, and extended operational hours that accelerate electrolyte degradation. The CE B 400V470UF is a 400V-class, 470µF unit used in mid-range drive power stages. Replacement of these components is a standard preventive maintenance procedure at 5–8 year intervals or upon detection of increased ESR, capacitance loss, or physical swelling.

The Evolution of CE B Series Architecture

Yaskawa's capacitor specification within its drive product line has evolved across three distinct generations. Early CIMR-series drives (pre-2000) used snap-in type electrolytic capacitors with standard 85°C ratings, sourced from Japanese manufacturers including Nippon Chemi-Con and Nichicon under Yaskawa OEM specifications. The CE B designation emerged as Yaskawa standardized its internal component coding for the G7 and F7 drive families (2001–2010), specifying 105°C-rated capacitors with enhanced ripple current tolerance to support higher switching frequencies in IGBT-based inverter stages. The current generation, aligned with the A1000 and GA700 platforms, uses capacitors with extended ESR stability profiles and longer design life ratings (10,000–12,000 hours at 105°C). However, the CE B series components remain the correct replacement specification for all legacy G7, F7, E7, and P7 drives still in active service. Cross-compatibility between generations is voltage- and capacitance-specific; substitution requires verification of can diameter, lead pitch, height, and ripple current rating. Incorrect substitution degrades DC bus filtering performance and can trigger overcurrent or overvoltage faults.

CE B Series Full Catalog & Functionalities (SKU List)

The following SKUs represent confirmed CE B Series components used across Yaskawa drive power stages, organized by voltage class and capacitance value:

400V Class — DC Bus Capacitors

• CE B 400V470UF: 400V / 470µF snap-in electrolytic, DC bus filter, mid-range drive (standard reference unit)
• CE B 400V560UF: 400V / 560µF, DC bus energy storage, higher kW class drives
• CE B 400V680UF: 400V / 680µF, DC bus bulk capacitance, 15–22kW drive stages
• CE B 400V820UF: 400V / 820µF, high-capacitance DC bus filter for 30kW class
• CE B 400V1000UF: 400V / 1000µF, large-frame drive DC bus, 37–45kW range
• CE B 400V1200UF: 400V / 1200µF, heavy-duty DC bus storage, 55kW class
• CE B 400V1500UF: 400V / 1500µF, high-energy DC bus, 75kW and above
• CE B 400V2200UF: 400V / 2200µF, large-frame parallel bank configuration

200V Class — DC Bus Capacitors

• CE B 200V1000UF: 200V / 1000µF, 200V-class drive DC bus, 5.5–7.5kW
• CE B 200V1500UF: 200V / 1500µF, 200V-class mid-range drive, 11–15kW
• CE B 200V2200UF: 200V / 2200µF, 200V-class high-power DC bus
• CE B 200V3300UF: 200V / 3300µF, 200V-class large-frame drive
• CE B 200V4700UF: 200V / 4700µF, 200V-class heavy-duty parallel bank

Auxiliary / Control Power Capacitors

• CE B 35V1000UF: 35V / 1000µF, control board power supply filtering
• CE B 50V470UF: 50V / 470µF, gate drive power supply decoupling
• CE B 63V220UF: 63V / 220µF, auxiliary power rail filtering, SMPS output stage