How does shipping work for orders on MRO Exchange?

Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

What payment methods does MRO Exchange accept?

MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

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Mitsubishi Electric MR-S12 / RG201 B5 Dual Axis Servo Amplifier

$1,499.00 USD

Sale Sold out

ConditionSurplus - Untested MPNMR-S12 / RG201 B5 Stock #0226-00599

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

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Estimated package weight: 20.0 lbs

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Used in Mazak CNC machining centers and other MELDAS-controlled machine tools, the Mitsubishi Electric MR-S12 series is a dual axis AC servo amplifier designed to drive two servo axes simultaneously from a single compact assembly. The unit pictured includes the RG201 control board (marked RG 201 B5), an RG221 intermediate board, and an RG20-series power base mounted on a finned aluminum heatsink chassis. An internal Fuji Electric ETG81-050 power transistor module is visible in the power section. The multi-layer PCB assembly features an AMP STATUS LED display, multiple large-format connectors for CNC feedback and axis interface, and a terminal block strip for power and signal connections. The assembly is manufactured in Japan, consistent with Mitsubishi Electric's MELDAS servo drive production. The MR-S12 platform is commonly associated with Mazak Mazatrol M32 and T32 CNC controls, as well as various MELDAS-based systems. Capacitors rated at 390 µF 400 WV are visible on the intermediate power board. The unit is a complete two-axis drive assembly. The exact assembly part number was not confirmed from visible labeling in the available photographs; buyers should cross-reference the RG201 board revision and power module configuration against their machine documentation to confirm compatibility.

Stock # 0226-599

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.