20-gauge Low Voltage Wire for MD Central Vacuum
- Product SKU: 540M
- Category: Central Vacuum Parts & Accessories, MD Central Vacuum Attachment Kit
- Order within
Quick Summary
This 20-gauge low voltage wire is used when adding an additional central vacuum inlet or finishing an installation job. It is available in multiple lengths, including a 500 ft reel option.
Available from Authorized MD Dealer Ace Vacuums, with help matching parts to your MD central vacuum system at our Fairfax and Leesburg, VA showrooms.
Quick Highlights
- 20-gauge low voltage wire
- Multi-thread separated-insulation wire
- Used to add an additional inlet
- Also useful for finishing a job
- Available in 25 ft, 50 ft, and 500 ft lengths
- 500 ft reel option available
Product Overview
This 20-gauge low voltage wire provides the amount needed for adding an additional inlet to an MD central vacuum system or wrapping up an installation. It is a practical replacement or installation part for central vacuum work.
The wire is described as multi-thread with separated insulation and comes in several length options to match small or larger jobs. Choose from 25 ft, 50 ft, 500 ft, or 500 ft on a reel.
This part is listed with compatibility that includes AirMaster, Modern Day, SilentMaster, Flo-Master, Beam, Nutone, Electrolux, Vacuflo, Kenmore, and Eureka.
Key Features
- 20-gauge wire: This product is 20-gauge low voltage wire for central vacuum installation needs.
- For inlet additions: It is suited for adding an additional central vacuum inlet.
- For finishing jobs: It can also be used to finish off a central vacuum installation job.
- Multiple lengths available: Length choices include 25 ft, 50 ft, 500 ft, and 500 ft on a reel.
- Separated insulation design: The wire is described as multi-thread separated-insulation wire.
MD Compatibility
This product is listed for MD (Modern Day) central vacuum systems. Fit can depend on your hose, inlet type and system age, so confirm your setup before ordering or call Ace Vacuums for help.
Available Options
| Length | Part Number |
|---|---|
| 50 ft | 540M |
| 25 ft | 540S |
| 500 ft | 541 |
| 500 ft on reel | 541F |
Technical Specifications
| Specification | Details |
|---|---|
| Brand | MD |
| Product type | Low voltage wire |
| Wire gauge | 20-gauge |
| Wire description | Multi-thread separated-insulation wire |
| Available lengths | 25 ft, 50 ft, 500 ft, 500 ft on a reel |
| Part number | 540M |
| Variant | 50ft Low Voltage Wire |
| Part number | 540S |
| Variant | 25ft of Low Voltage Wire |
| Part number | 541 |
| Variant | 500ft Low Voltage Wire |
| Part number | 541F |
| Variant | 500ft Low Voltage Wire on a Reel |
| Compatibility | AirMaster, Modern Day, SilentMaster, Flo-Master, Beam, Nutone, Electrolux, Vacuflo, Kenmore, and Eureka |
| Authorized Dealer | Ace Vacuums |
Best For
- Adding an additional central vacuum inlet
- Finishing a central vacuum installation job
- Small repairs with 25 ft or 50 ft lengths
- Larger installation projects with 500 ft wire
- Installers who prefer a 500 ft reel option
Not Ideal For
- Not for shoppers who need hose or tool accessories
- Length must be selected before ordering
- Confirm compatibility with your MD central vacuum model or inlet setup before purchase
Why Buy from Ace Vacuums
When you purchase from Authorized MD Dealer Ace Vacuums, you receive:
- Central vacuum parts matched to your MD system
- Help choosing the right hose, tools and inlet parts
- Knowledgeable support before and after the sale
- Shipping or pickup at our Fairfax and Leesburg showrooms
Available Online & In-Store
The 20-gauge Low Voltage Wire for MD Central Vacuum is available online and in-store through Authorized MD Dealer Ace Vacuums.
Visit Our Showrooms
- Fairfax, VA: 11110 Main St, Fairfax, VA 22030
- Leesburg, VA: 300 Fort Evans Rd NE, Leesburg, VA 20176
Call 703-997-9292 (ext. 1 Fairfax, ext. 2 Leesburg).
Quick Summary
This 20-gauge low voltage wire is used when adding an additional central vacuum inlet or finishing an installation job. It is available in multiple lengths, including a 500 ft reel option.
Available from Authorized MD Dealer Ace Vacuums, with help matching parts to your MD central vacuum system at our Fairfax and Leesburg, VA showrooms.
Quick Highlights
- 20-gauge low voltage wire
- Multi-thread separated-insulation wire
- Used to add an additional inlet
- Also useful for finishing a job
- Available in 25 ft, 50 ft, and 500 ft lengths
- 500 ft reel option available
Product Overview
This 20-gauge low voltage wire provides the amount needed for adding an additional inlet to an MD central vacuum system or wrapping up an installation. It is a practical replacement or installation part for central vacuum work.
The wire is described as multi-thread with separated insulation and comes in several length options to match small or larger jobs. Choose from 25 ft, 50 ft, 500 ft, or 500 ft on a reel.
This part is listed with compatibility that includes AirMaster, Modern Day, SilentMaster, Flo-Master, Beam, Nutone, Electrolux, Vacuflo, Kenmore, and Eureka.
Key Features
- 20-gauge wire: This product is 20-gauge low voltage wire for central vacuum installation needs.
- For inlet additions: It is suited for adding an additional central vacuum inlet.
- For finishing jobs: It can also be used to finish off a central vacuum installation job.
- Multiple lengths available: Length choices include 25 ft, 50 ft, 500 ft, and 500 ft on a reel.
- Separated insulation design: The wire is described as multi-thread separated-insulation wire.
MD Compatibility
This product is listed for MD (Modern Day) central vacuum systems. Fit can depend on your hose, inlet type and system age, so confirm your setup before ordering or call Ace Vacuums for help.
Available Options
| Length | Part Number |
|---|---|
| 50 ft | 540M |
| 25 ft | 540S |
| 500 ft | 541 |
| 500 ft on reel | 541F |
Technical Specifications
| Specification | Details |
|---|---|
| Brand | MD |
| Product type | Low voltage wire |
| Wire gauge | 20-gauge |
| Wire description | Multi-thread separated-insulation wire |
| Available lengths | 25 ft, 50 ft, 500 ft, 500 ft on a reel |
| Part number | 540M |
| Variant | 50ft Low Voltage Wire |
| Part number | 540S |
| Variant | 25ft of Low Voltage Wire |
| Part number | 541 |
| Variant | 500ft Low Voltage Wire |
| Part number | 541F |
| Variant | 500ft Low Voltage Wire on a Reel |
| Compatibility | AirMaster, Modern Day, SilentMaster, Flo-Master, Beam, Nutone, Electrolux, Vacuflo, Kenmore, and Eureka |
| Authorized Dealer | Ace Vacuums |
Best For
- Adding an additional central vacuum inlet
- Finishing a central vacuum installation job
- Small repairs with 25 ft or 50 ft lengths
- Larger installation projects with 500 ft wire
- Installers who prefer a 500 ft reel option
Not Ideal For
- Not for shoppers who need hose or tool accessories
- Length must be selected before ordering
- Confirm compatibility with your MD central vacuum model or inlet setup before purchase
Why Buy from Ace Vacuums
When you purchase from Authorized MD Dealer Ace Vacuums, you receive:
- Central vacuum parts matched to your MD system
- Help choosing the right hose, tools and inlet parts
- Knowledgeable support before and after the sale
- Shipping or pickup at our Fairfax and Leesburg showrooms
Available Online & In-Store
The 20-gauge Low Voltage Wire for MD Central Vacuum is available online and in-store through Authorized MD Dealer Ace Vacuums.
Visit Our Showrooms
- Fairfax, VA: 11110 Main St, Fairfax, VA 22030
- Leesburg, VA: 300 Fort Evans Rd NE, Leesburg, VA 20176
Call 703-997-9292 (ext. 1 Fairfax, ext. 2 Leesburg).
Frequently Asked Questions
What is this wire used for?
This 20-gauge low voltage wire is used for adding an additional central vacuum inlet or for finishing off a job.
What lengths are available?
It is available in 25 ft, 50 ft, 500 ft, and 500 ft on a reel.
Is this a 20-gauge wire?
Yes. This product is described as 20-gauge low voltage wire.
What type of wire is it?
It is described as multi-thread separated-insulation wire.
Will this fit an MD central vacuum system?
It is sold on the Parts for Modern Day pages and can be used with MD central vacuum installations. If you are unsure about fit for your setup, confirm your model or inlet type before ordering.
What systems is it listed as compatible with?
The compatibility note includes AirMaster, Modern Day, SilentMaster, Flo-Master, Beam, Nutone, Electrolux, Vacuflo, Kenmore, and Eureka.
What is the difference between the 500 ft options?
One option is 500 ft of low voltage wire, and the other is 500 ft of low voltage wire on a reel.
Visit Our Showrooms
Check real-time traffic and travel time from your location in VA, DC, or MD.
📍 AceVacuums Fairfax (DMV Hub)
Address: 11110 Main St, Fairfax, VA 22030
Landmark: Opposite Havertys Furniture Store
Best for: Bethesda, Potomac, Arlington, NW Washington D.C.
📍 AceVacuums Leesburg
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
Shipping, Return & Refund Policy
Shipping Policy
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.
Returns and refunds
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.
30-Day Returns, Refunds and Exchanges
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.
Eligibility and authorization
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.
Fees and shipping
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.
Final-sale and excluded items
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.
Damaged, defective, incorrect or missing items; recalls
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.
Refund timing and exchanges
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.
Applicable rights and earlier purchases
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.
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