Parking Structures

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301R Relay Module

Acts as an output to the 301C, the Relay Module provides 8 DPDT relays for the indirect activation of fans, louvers, etc. at programmable alarm levels.
Features & Benefits
  • Easy daisy chain installation (RS-485)
  • LED visual indication of status next to each relay
  • Fully compatible with the 301C controller
Quick Specs
  • Power requirement: 17-24 VAC, 24-38 VDC, 250 mA
  • Operating temperature range: 0 to 40°C (32°F to 104°F)
  • Operating humidity range: 0 to 95% RH, non-condensing 
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Product Overview

The 301R and 301RW act as an output for the 201C or the 301C. The 301R and the 301RW provide a standard 8 relays (DPDT 5A, 30 Vdc or 250 Vac resistive load) for the indirect activation of accessories. Since the relay module is an output for the controller, it can be located anywhere within the gas detection network.  

The 301R is fully compatible with both the 201C and the 301C (the 301RW is compatible with only the 301CW) and offer LED indicators for each relay (visible only when housing is open).

Frequently Asked Questions

Have a question about the product features or warranty? Find the answers here.
We do not sell our products directly on our website but we would be happy to assist you with your gas detection needs.  On each product page you will see a red button on the right-hand side titled “HOW TO BUY”.  If you click on this button a form will appear which will go directly to one of our sales representatives once completed and submitted.  

You can also call one of our sales representatives directly.  Click here to go to the Contact Us page.  

There are two areas where you can access technical documents.  First, you can visit our Technical Library in the Support section of the website.  Here you will be able to access our entire catalog of documents and videos for all products – current and legacy products.  

You can also access the technical documents for each product on that product’s respective page within the website.    


Yes we do.  Check out our HA University training section to see what programs are available and sign up for any that you are interested in.  These courses are very informative and led by our expert engineers.  If you have any questions about training opportunities for yourself or your staff and would like to talk to a Honeywell representative, click here.

Check out the Product Inquiry page in the Contact Us section.  Here you’ll find sales contacts for each of our product lines and they can help you with any questions you may have from technical specifications to ordering information. 

Check out the Service & Repairs page in the Contact Us section.  Here you’ll find the contact information for our service centers in your region. 

There are several ways you can search for products on our website:

  • Click on the Products link in the main navigation to search by product lines.
  • Find products for a specific Industry or Application by clicking on the links in the main navigation bar at the top of the page.
  • Use our Gas Finder if you’re looking for a product that can detect a specific type of gas.
  • If you still can’t find the product you’re looking for, type the name of the product in the search bar at the top of the page.

Because we do not sell our products directly we cannot quote a specific price on our website.  Contact a sales representative through either the “HOW TO BUY” button on the product page or by calling them and they will be able to obtain pricing from local distributors in your area. 

Similar Products

Check out some of these similar products.
Control toxic or combustible gases - 301C Controller - Honeywell Analytics
Designed for simple installation and operation, the 301C continuously monitors and controls toxic gases, combustible gases and oxygen hazards.
Applications: Building ProtectionFood ProcessesParking Structures and TunnelsData CentersCommercial Kitchens

Looking For More Information?

Check out these documents. If you can't find what you're looking for here, check out our Technical Resource library.