Mitsubishi A50CA55C BC186A433G53 Inverter Board | Replacement, Equivalent & Selection Guide
The Mitsubishi A50CA55C BC186A433G53 is an OEM inverter board designed for Mitsubishi CNC and drive systems. This page provides complete technical specifications, verified compatible replacements, and a structured selection guide to help engineers and procurement teams source the right part with confidence.
Technical Specifications
| Parameter | Detail |
|---|---|
| Part Number | A50CA55C / BC186A433G53 |
| Manufacturer | Mitsubishi Electric |
| Component Type | Inverter Board (Drive PCB) |
| Series | Mitsubishi A50 / BC186 Series |
| Weight | 4,460 g (approx.) |
| Application | CNC Spindle Drive / Servo Inverter Systems |
| Condition Available | New Original / Refurbished / Tested Used |
Compatible Replacement & Equivalent Models
When the original A50CA55C BC186A433G53 is unavailable or discontinued, the following models may serve as functional equivalents. Always verify electrical ratings and mechanical dimensions before substitution:
- Mitsubishi BC186A433G53 – Direct OEM sub-assembly reference
- Mitsubishi A50CA55C – Parent board assembly
- Compatible Mitsubishi A50 series inverter boards with matching connector layout
- Third-party remanufactured boards tested to OEM specification (available on request)
Contact our technical team at [email protected] to confirm cross-reference compatibility for your specific machine model.
Why Choose the Original Model
- ✅ Guaranteed OEM firmware and hardware compatibility
- ✅ No re-tuning or parameter reconfiguration required
- ✅ Maintains original warranty and CE/UL certification chain
- ✅ Eliminates integration risk in safety-critical CNC environments
- ✅ Supported by Mitsubishi Electric’s global service network
Typical Applications
- Mitsubishi CNC spindle drive systems (MELSERVO / FREQROL series)
- Industrial servo amplifier inverter stages
- Automated machining centers and turning centers
- Injection molding machine drives
- Conveyor and material handling drive systems
System Compatibility
The A50CA55C BC186A433G53 inverter board is designed for integration within Mitsubishi’s A50 drive platform. Confirm compatibility with your system by matching:
- Host drive unit model number
- DC bus voltage rating
- IGBT gate signal interface type
- Connector pinout and board mounting pattern
Our engineers can assist with system-level compatibility checks — provide your drive unit model when enquiring.
Selection Guide
Use the following decision flow to select the correct part:
- Identify your drive unit – Record the full model number from the drive nameplate.
- Confirm the failed sub-board – Match the PCB silk-screen label to A50CA55C and/or BC186A433G53.
- Choose condition – New original for critical production lines; tested refurbished for budget-sensitive or backup applications.
- Verify lead time – Contact us for real-time stock status and estimated delivery.
- Consider a spare – For high-uptime facilities, holding one spare board reduces unplanned downtime risk.
Quality Assurance & Sourcing
- All units sourced from authorized distributors or verified industrial surplus channels
- 100% functional test performed prior to shipment
- Anti-static packaging with full traceability documentation
- Inspection report available on request
- Konmask.com specializes in hard-to-find and obsolete industrial automation components
How to Order
- Add to cart directly, or
- Email [email protected] with your PO or enquiry, or
- Call / WhatsApp: +0086 19859288691
Bulk pricing and long-term supply agreements available for OEM and MRO customers.
Replacement & Compatibility FAQ
Q: Can I use a BC186A433G53 board from a different A50 variant?
A: Possibly, but connector pinouts and firmware versions may differ. Always confirm with our technical team before installation.
Q: Is a refurbished board reliable for production use?
A: Our refurbished units undergo full load testing and carry a 90-day functional warranty. For critical lines, we recommend new original stock.
Q: What is the lead time for new original stock?
A: Lead times vary by availability. Contact us for a real-time quote — we maintain global sourcing networks to minimize wait times.
Q: Do you provide installation support?
A: We provide technical documentation and remote guidance. On-site support can be arranged through our partner network.
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Contact: [email protected] | +0086 19859288691
