YASKAWA CE B 400V470UF Aluminum Electrolytic Capacitor – CE-B Series DC Bus Component
When a DC bus capacitor fails inside a YASKAWA servo drive or variable frequency drive, the consequences are immediate and severe: voltage ripple goes unfiltered, the drive trips on overvoltage or undervoltage faults, and every minute of unplanned downtime translates directly into lost production output and costly emergency maintenance. In high-throughput manufacturing environments — automotive assembly, semiconductor fabrication, food processing — even a single unscheduled stop can cascade into hours of recovery time. The YASKAWA CE B 400V470UF aluminum electrolytic capacitor is the OEM-specified component engineered to prevent exactly this scenario, restoring stable DC bus voltage, absorbing energy transients, and keeping your drive running at full rated performance.
Within the YASKAWA CE-B series, the CE B 400V470UF occupies a key position as a high-capacitance, high-voltage bulk capacitor designed for the demanding DC link circuits of YASKAWA Σ-series servo amplifiers, A1000/V1000/L1000 variable frequency drives, and compatible motion control platforms. As one of the world’s leading manufacturers of industrial automation equipment, YASKAWA’s CE-B series capacitors are trusted by OEMs and maintenance engineers across automotive, semiconductor, food & beverage, and heavy industry globally — making this part a cornerstone of preventive maintenance programs worldwide.
Technical Specifications
- Part Number / SKU: CE B 400V470UF
- Brand: YASKAWA
- Series: CE-B
- Type: Aluminum Electrolytic Capacitor
- Rated Voltage: 400V DC
- Capacitance: 470µF
- Application: DC Bus / DC Link Smoothing
- Weight: 1,250 g (approx.)
- Compliance: RoHS compatible (verify with datasheet)
Note: All specifications are based on YASKAWA OEM documentation. Konmask.com does not fabricate or alter manufacturer specifications.
Key Features & Benefits
- High Voltage Rating (400V DC): Engineered for the elevated DC bus voltages found in 3-phase 200–240V and 380–480V input drive systems, providing robust insulation margin and long service life.
- Large Capacitance (470µF): Delivers substantial energy storage to smooth rectified DC voltage, suppress ripple current, and protect downstream IGBT modules from voltage spikes.
- OEM-Specified Component: Manufactured to YASKAWA’s exact tolerances, ensuring drop-in compatibility with supported drive models — no derating or re-engineering required.
- Extended Service Life: CE-B series capacitors are designed for the thermal and electrical stress profiles of continuous-duty industrial drives, reducing the frequency of preventive maintenance intervals.
- Optimized ESR Characteristics: Minimizes self-heating under high ripple current conditions typical of PWM inverter circuits, ensuring stable long-term operation.
Industry & Equipment Applications
- Servo Drives: YASKAWA Σ-7, Σ-V, and Σ-II series servo amplifiers requiring DC bus capacitor replacement or preventive maintenance.
- Variable Frequency Drives (VFDs): YASKAWA A1000, V1000, L1000A, and GA700 series inverters used in pump, fan, compressor, and conveyor applications.
- CNC Machine Tools: Spindle drive and axis drive systems in machining centers, lathes, and grinding machines.
- Robotics & Motion Control: Multi-axis robot controllers and coordinated motion platforms in automotive assembly and electronics manufacturing.
- Semiconductor & FPD Manufacturing: Precision motion stages where DC bus stability is critical to positioning accuracy.
- Food & Beverage Processing: Hygienic conveyor and packaging line drives operating in continuous-duty cycles.
System Integration & Compatible Parts
The CE B 400V470UF is typically used alongside the following YASKAWA components in DC bus capacitor bank assemblies:
- YASKAWA DC bus capacitor discharge resistors
- YASKAWA IGBT power modules (compatible series)
- YASKAWA rectifier bridge assemblies
- YASKAWA drive control boards and gate driver cards
When performing a capacitor replacement, it is recommended to inspect and test all capacitors in the bank simultaneously, as aging characteristics tend to be uniform across units installed at the same time. Contact our technical team for a complete BOM (Bill of Materials) for your specific drive model.
Our Quality Assurance Process
- Source Verification: All YASKAWA parts are sourced through authorized distribution channels or directly from verified OEM supply chains.
- Visual & Dimensional Inspection: Each unit is inspected for physical integrity — no bulging, electrolyte leakage, or label damage.
- Traceability: Lot codes and date codes are recorded and available upon request for quality-critical applications.
- Secure Packaging: Anti-static and moisture-barrier packaging protects components during international transit.
- Documentation: Certificate of Conformance (CoC) and test reports available for qualified buyers.
How to Order
- Submit an inquiry via the Contact / RFQ form on this page with your required quantity and delivery timeline.
- Our technical sales team will confirm availability, lead time, and provide a formal quotation within 1 business day.
- Upon order confirmation, we arrange secure packaging and international shipping with full tracking.
- Post-delivery technical support is available for installation guidance and compatibility verification.
Minimum Order Quantity (MOQ): 1 piece. Volume pricing available for orders of 10+ units.
Why Choose Konmask.com?
- ✅ Industrial Automation Specialists: Focused exclusively on PLC, DCS, servo, and drive components — not a generalist marketplace.
- ✅ Global B2B Supply: Serving maintenance engineers, OEMs, and system integrators across Asia, Europe, the Americas, and the Middle East.
- ✅ Technical Expertise: Our team includes experienced automation engineers who can assist with cross-referencing, compatibility checks, and application support.
- ✅ Fast Response: RFQ responses within 24 hours. Emergency sourcing support available.
- ✅ Secure Transactions: T/T, L/C, and other B2B payment terms supported.
Frequently Asked Questions
Q: What YASKAWA drive models use the CE B 400V470UF capacitor?
A: This capacitor is used in various YASKAWA servo amplifier and VFD models with 400V DC bus ratings. Please provide your drive model number when submitting an RFQ so our team can confirm exact compatibility.
Q: Is this an OEM original part or an aftermarket replacement?
A: Konmask.com supplies OEM-original YASKAWA components. Please specify your requirement (OEM original vs. approved equivalent) in your inquiry.
Q: How do I know when to replace the DC bus capacitor?
A: Common indicators include drive overvoltage/undervoltage faults, increased audible noise from the capacitor bank, visible bulging or leakage, or capacitance measurements falling below 80% of rated value during preventive maintenance.
Q: Can you supply multiple units for a full capacitor bank replacement?
A: Yes. We recommend replacing all capacitors in a bank simultaneously. Contact us with your quantity requirement for volume pricing.
Q: What is the lead time for the CE B 400V470UF?
A: Lead time depends on current stock levels. Submit an RFQ and we will confirm availability and estimated delivery within 1 business day.
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