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Cat3 Keystone Jack - 110 Style

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The Cat3 Keystone Jack

The Cat3 jack is a widely used keystone for basic voice applications. The Cat3 jack provided by FireFold is designed to provide excellent performance and durability. This Cat3 jack comes with an RJ11/RJ12 Keystone head and is a 6-position, 6-conductor keystone jack. RJ11 keystone jacks have been replaced for most data transfers for the newer RJ45 ended cables in Cat5 and Cat6 cabling standards.

These specific RJ11 keystone jacks require a tool for their cable installation. However, there is an excellent universal writing system label that allows for hassle-free wiring. So, no worries! You’ll be setting these up with ease in no time.

Meeting All Requirements

Each RJ11 keystone jack is flame retardant and meets current standards through TIA/EIA-568. This phone jack standard applies to commercial building cabling for telecom products. As well, each is ETL verified for quality and safety.

These RJ11 jacks are 14.5mm wide by 16mm high and are easily able to fit in most standard keystone jack wall plates. It should be noted that these RJ11 keystones will also work with most patch panels and surface mount boxes, not just wall plates alone.

You can find a variety of keystone wall plates with us, which allow you to customize easily what you put into each wall plate in your home. You could combine one of these with a coax keystone, or even an RJ45 keystone, with just an easy snapping of each keystone into their place.

Quality to Last a Lifetime 

All FireFold keystone jacks come with a lifetime warranty. So, if something goes awry, and it is the product causing the issue, we’ll be more than happy to replace it for you - hassle free! Go ahead and get your hands on one, or many, of these today!

Please note: Slight hue variations may occur between keystone jacks and the matching keystone wall plates. If you need to ensure there is no variation, please contact customer service at 704-979-7100 before placing your order.


  • Universal Wiring - One easy to read label provides a hassle free wiring system
  • Designed for Solid Cable


  • Housing-Flame Retardant (UL 94 V-0)
  • Termination terminals-nylon
  • PCB Board - Flame Retardant (UL 94 V-0)
  • IDC 110 contacts- phosphorus brass plated with nickel
  • Nose Contacts - brass plated with a minimum of 50 micro-inch gold plating
  • Meets or Exceeds TIA/EIA 568A & B Standards
  • ETL Verified for Quality & Safety
  • UL Listed
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