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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.

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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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Reliance Electric 0-51831-7 CVTH Current Voltage Transductor Circuit Board Card

$150.00 USD

Sale Sold out

ConditionSurplus - Untested MPN0-51831-7 Stock #0226-00554

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: 5.0 lbs

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This listing is for one used Reliance Electric 0-51831-7 CVTH Current Voltage Transductor circuit board card. The board number 0-51831-7 is silkscreened on the PCB and also identified via a sticker label reading 7053290003R visible on the brass heatsink cover. The assembly includes a metal front faceplate with a four-position screw terminal strip and a connected PCB mounted behind it. The faceplate left side carries labeled connections for arm current, shunt, and field current shunt signals, with the user caution to properly set range taps upon replacement. The PCB is populated with two yellow potted transformers marked 6743-13A and 9743-13A, a 2N3055 NPN power transistor mounted to the brass heatsink plate, Dale wirewound resistors marked 63481-22E, LM307 and LM301AN op-amp ICs, electrolytic capacitors, and a bridge rectifier arrangement. A gold-fingered edge connector at the board rear allows plug-in installation into compatible Reliance MaxPak Plus or equivalent drive rack slots. This product has been discontinued by the original manufacturer and is available as a surplus replacement. Buyers are responsible for confirming compatibility with their specific drive system configuration prior to purchase.

Stock # 0226-554

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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.