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24VAC Wire Multiplier


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Reconfigure your existing wires in most 3 or 4 wire heating or cooling systems. Designed for the USA.   Most Wi-Fi thermostats with smart features need to be powered all the time. So, it needs a... Read more




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Simply the best all-in-one solution on the market.
Designed in the USA.

24VAC Wire Multiplier
Main Features

  • C-Wire Solution

    Provides 24VAC power to thermostat without a C-wire.
  • Compatible with PCT513

    Works seamlessly with the PCT513 thermostat and other APOLLO products.
  • Reconfigure Existing Wires

    Modify your current 3 or 4 wire systems easily.
  • Easy Installation

    Perfect for both professionals and DIY Projects.
  • No New Wires Needed

    Avoid the hassle of running new wires throughout your home.

  • Smart Home Ready

    Powers Wi-Fi thermostats for continuous smart features.

Main Features

Constant Power Solution

The SWB511 provides 24VAC power to your thermostat without a C-wire. Keep your Wi-Fi thermostat running smoothly with a constant power source.

Designed for Versatility

The SWB511 adapts to most 3 or 4 wire heating or cooling systems, providing a versatile solution for various setups. It ensures your smart thermostat is always powered without needing new wiring.

Reconfigure Existing Wires

Reconfigure your existing wires in most 3 or 4 wire heating or cooling systems. The SWB511 eliminates the need for new wiring, simplifying installation.

Easy Installation

The SWB511 is easy to install for both professional contractors and DIY homeowners. Avoid the hassle of running new wires with this convenient solution.

  • Great unit at a great price. Very pleased and the wifi thermostat is a big plus. The old unit had a three speed manual fan.


    A Happy Customer
  • The quality is very impressive! Don't over pay for other brands. Allen, Jesus and the MBtek team are very helpful both before and after the sale. Thank you for the great experience guys.


    A Happy Customer

Frequently asked questions

Where can I find a dealer?

You can speak directly with one of our sales agents via phone, email or text message for more information.

Who will integrate my thermostat into my setup?

Mbtek does not complete the installation. Any professional technician will be able to install your purchase. If you require assistance finding one, we are here to help.

What if my thermostat arrives broken?

We offer a 30-day return policy. If your thermostat arrives broken, we will replace it at no cost to you.

When will I receive my unit?

As soon as the unit is in stock, we will book the shipment following business day. The availability (or ETA) of a specific unit is mentioned on the top of each product page. Depending on your location, delivery can take anywhere from 3 to 12 days

Do I have to pay customs fees if my unit is coming from another country?

No. We take responsibility for these charges.

Are your products shipped in the U.S. or Canada?

It varies for each product. However, we have warehouses in Pennsylvania (U.S.), Alberta (CAN), and Quebec (CAN).

What is the product warranty?

The compressor includes a 1-year warranty.

Need an installer?

We made it easy for you.

Please note that listed installers are independent contractors and not employees of MBTek.
They are skilled professionals familiar with our products and capable of efficient installation.

Any Questions?

Reach out to us

Technical Specifications

Basic Information:

Operating Voltage • 24 VAC
Temperature: -20 °C ~ +55 °C
Humidity: ≤ 90% non-condensing
Dimension • 64 (L) x 45(W) x45(H) mm
Weight • 8.8 g

Customer Reviews

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Technical & User Manuals

This documentation covers many of the topics of interest to end-users and maintenance staff. For any additional inquiries, contact us.
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