MD 20-Gauge Low Voltage Wire for Beam Central Vacuum
20-gauge low-voltage control wire. Choose the required length; not mains wiring for a motor or electric powerhead.
Replacement control board for single-motor central vacuums rated at 110/120 volts and under 15 amps. It combines a relay, transformer, 15-amp mini breaker, and low-voltage connections in one module.
Available from Ace Vacuums, with help matching parts to your Beam central vacuum system at our Fairfax and Leesburg, VA showrooms.
This control board is an industry-standard replacement for single-motor 110-volt central vacuums that use a separate relay, transformer, and breaker or a single control board. It is also listed for the Beam 189D model at 120V.
Some retrofitting may be required. The board mounts through holes in the vacuum body using its threaded reset button and low-voltage stems, with two thin mounting nuts included.
This part is listed as the match for these Beam central vacuum models:
Check the model number on your power unit label before ordering. Our team can confirm the match if you are unsure.
| Specification | Details |
|---|---|
| Brand | Alutron |
| Part number | 235S |
| Application | Single-motor central vacuums |
| Voltage information | 110/120V, as listed in the product information |
| Amperage | Under 15 amps |
| Beam model fit | 189D (120V) |
| Low-voltage leads | Two pairs |
| Terminal type | 1/4-inch flag terminals |
| Mounting hardware | Two included thin mounting nuts |
| Authorized Dealer | Ace Vacuums |
When you purchase from Ace Vacuums, you receive:
The Alutron Single Motor Central Vacuum Control Board for Beam Central Vacuum is available online and in-store through Ace Vacuums.
Call 703-997-9292 (ext. 1 Fairfax, ext. 2 Leesburg).
Replacement control board for single-motor central vacuums rated at 110/120 volts and under 15 amps. It combines a relay, transformer, 15-amp mini breaker, and low-voltage connections in one module.
Available from Ace Vacuums, with help matching parts to your Beam central vacuum system at our Fairfax and Leesburg, VA showrooms.
This control board is an industry-standard replacement for single-motor 110-volt central vacuums that use a separate relay, transformer, and breaker or a single control board. It is also listed for the Beam 189D model at 120V.
Some retrofitting may be required. The board mounts through holes in the vacuum body using its threaded reset button and low-voltage stems, with two thin mounting nuts included.
This part is listed as the match for these Beam central vacuum models:
Check the model number on your power unit label before ordering. Our team can confirm the match if you are unsure.
| Specification | Details |
|---|---|
| Brand | Alutron |
| Part number | 235S |
| Application | Single-motor central vacuums |
| Voltage information | 110/120V, as listed in the product information |
| Amperage | Under 15 amps |
| Beam model fit | 189D (120V) |
| Low-voltage leads | Two pairs |
| Terminal type | 1/4-inch flag terminals |
| Mounting hardware | Two included thin mounting nuts |
| Authorized Dealer | Ace Vacuums |
When you purchase from Ace Vacuums, you receive:
The Alutron Single Motor Central Vacuum Control Board for Beam Central Vacuum is available online and in-store through Ace Vacuums.
Call 703-997-9292 (ext. 1 Fairfax, ext. 2 Leesburg).
It is designed for single-motor 110-volt central vacuums rated under 15 amps, including systems with a separate relay, transformer, and breaker or a single control board.
It is listed as fitting the Beam 189D model at 120V. Confirm your model and inlet or wiring configuration before ordering if your system is different.
The board includes a relay, transformer, 15-amp mini breaker, two pairs of low-voltage leads, and two thin mounting nuts.
Some retrofitting may be required. If the vacuum body does not have suitable mounting holes, the description states that holes can be created with a drill and step bit.
The wiring connections use 1/4-inch flag terminals. Female flag terminals can be purchased for the motor and power cord wires, or a wire set with terminal ends can be used.
The low-voltage wires from the home attach to the two 1/4-inch male flag connectors inside the black tower. Either wire can connect to either side.
The attached yellow low-voltage wires can be ignored or connected to an on/off low-voltage switch on the side of the tank.
An electrician is recommended for installation because the board connects to line, neutral, motor, and low-voltage wiring.
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Address: 11110 Main St, Fairfax, VA 22030
Landmark: Opposite Havertys Furniture Store
Best for: Bethesda, Potomac, Arlington, NW Washington D.C.
Address: 300 Fort Evans Rd NE, Suite 104, Leesburg, VA 20176
Landmark: Next to Home Depot in Leesburg
Best for: Ashburn, Sterling, Frederick MD, Loudoun County
In-stock merchandise generally ships from our Leesburg, Virginia location within 3–5 business days. Processing time is separate from carrier transit time and is not a guaranteed delivery date. Weekends and holidays can affect timing. Special-order, backordered or unavailable items may take longer; contact us to confirm timing before purchase when a deadline matters.
Shipping options and charges are shown at checkout. After dispatch, follow the carrier's tracking updates. Weather, carrier delays, order verification and inventory confirmation may affect delivery. Inspect packages promptly and retain packaging if there is damage or an incorrect or missing item.
Eligible unused items have a 30-calendar-day return request window for refunds or exchanges, measured from delivery or in-store purchase. Return authorization is required. Final-sale exclusions, the 15% restocking fee for change-of-mind returns and shipping responsibilities are explained in our Return and Refund Policy. That policy is the governing source for return eligibility and fees.
For shipping or return help, email sales@acevacuums.com or call 703-997-9292.
Updated September 27, 2026. Request a return for an eligible unused item within 30 calendar days of delivery (or purchase for items collected in store). Eligible returns may be refunded to the original payment method or exchanged, subject to availability. The same 30-day request window applies to both refunds and exchanges; there is no separate seven-day or 15-day refund deadline.
Items must be unused, clean, complete and in their original packaging with all accessories, manuals and proof of purchase. Contact sales@acevacuums.com or 703-997-9292 before sending anything back. Include your order number, item and reason for return. We will confirm eligibility, charges and return instructions. Unapproved or cash-on-delivery returns are not accepted.
For an approved change-of-mind return, a 15% restocking fee applies to the returned merchandise price. Original shipping charges are not refundable and the customer pays return shipping. These charges do not apply to an approved return caused by our shipping error or a damaged/defective item claim. Contact us first so we can arrange the appropriate remedy and shipping instructions. Do not assume a prepaid label is included.
Air purifiers; discounted, clearance, trade-in, holiday-sale and price-matched purchases; gift cards; custom or special-order products; electrical parts; used or installed items; opened cleaning solutions; and used bags, filters, belts or other consumables are not eligible for change-of-mind returns. Other items clearly marked final sale at purchase are also excluded. An opened box alone does not disqualify an otherwise eligible unused, complete item, but consumables and cleaning solutions must remain unopened.
Inspect your order promptly and contact us as soon as you discover a problem, with your order number and photos where helpful. Keep the packaging. Change-of-mind exclusions and deadlines do not remove applicable defect, warranty, recall or statutory rights. Warranty coverage requires evaluation under the manufacturer's terms; dealer status does not guarantee free repair. Recalled products must follow the manufacturer's recall process.
After we receive and inspect the return, we will notify you of approval or the reason it cannot be accepted. Approved refunds are issued to the original payment method within 10 business days of approval; your bank may take additional time to post them. Contact us if more than 15 business days have passed since approval. Exchanges require authorization and replacement availability; any price difference and applicable charges will be explained before processing.
This policy applies to online and in-store purchases. We will honor more favorable written return terms provided with an earlier purchase. Applicable consumer rights remain unaffected. Where the European Union 14-day cancellation right applies, customers may cancel or return eligible orders within 14 days of receipt, subject to applicable legal exceptions, without giving a reason.
Maintenance and companion parts for this repair category. The exact motor, board or powerhead number determines the replacement you need.
Match the installed part number and connection. Round tools may not fit proprietary D-shaped handles. Hide-A-Hose valves, handles and RF generations need their own compatibility check. Choose the exact variant before adding an item to your cart.
20-gauge low-voltage control wire. Choose the required length; not mains wiring for a motor or electric powerhead.
25 maintenance sheets for routine central-vacuum hose and pipe care. Follow the label and system instructions; not a repair for a blocked or damaged system.
Current Beam 205 / 345 / 360 models use the 11-inch filter; 398 / 475 / 495 / 3600 / 4500 use the 14-inch filter. TDSAC93BM bags follow the listed compatible model path. Short TDSAC92BM bags are for the 275 path; #4462 bags are a separate configuration. Confirm older units and production versions before ordering. Check Beam’s official fit guide
For 25+ years, Ace Vacuums has filled the gap left by big-box retailers. We provide the expert repairs, warranty support, and genuine OEM parts that Amazon and Walmart simply don't offer. From free estimates to same-day service, we are your local alternative for professional home care solutions.
Conveniently serving Washington D.C. and Maryland (Montgomery & Prince George's Counties). Our showrooms are just 20 minutes from DC and 10 minutes from Tysons Corner.
Hablamos Español — Service in English & Spanish.
Serving Zip Codes: 20147, 20176, 22030, 22031, 20151, 20190, 22102, 22314, 20110, 20148 & surrounding areas. All repairs performed by certified technicians using genuine parts.