Eaton Data/Voice Modular Jack ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3.15
Eaton Data/Voice Modular Jack Wallplate, 4-Conductor, Surface Mount, Thermoplastic Elastomer

Eaton Data/Voice Modular Jack Wallplate, 4-Conductor, Surface Mount, Thermoplastic Elastomer

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Model: 3521-4V
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$3.15
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Eaton Data/Voice Modular Jack Wallplate, 4-Conductor, Surface Mount, Thermoplastic Elastomer

The Eaton Data/Voice Modular Jack Wallplate is a surface-mount, box-style wallplate with connector designed for commercial and residential telephone applications. Featuring a 4-conductor jack with Type 630A screw terminals, this Standard-style device is molded from Thermoplastic elastomer (TPE) and supports RJ11 and RJ14 cable types. The unit measures 4.7 in wide by 3 in long/deep by .6 in high, and is cULus Listed for reliable, code-compliant performance in data/voice wiring installations.

Key Features

  • Compact Footprint: Measures 4.7 in (width) x 3 in (length/depth) x .6 in (height) for surface-mount box installations.
  • Durable Construction: Molded from Thermoplastic elastomer (TPE) for a resilient, long-lasting device body.
  • Device Type: Data/voice modular jack with a 4-conductor jack design for telephone connectivity.
  • Connector Type: Type 630A screw terminals with Type 630A wire type for secure, reliable termination.
  • Cable Compatibility: Supports RJ11 and RJ14 cable types for standard telephone wiring.
  • Mounting Style: Surface, box mounting configuration in a Standard style design.
  • Application: Suited for commercial and residential telephone installations.

Certifications & Compliance

  • cULus Listed
  • RoHS Compliant

Technical Specifications

  • Product Type: Wallplate
  • Warranty: Refer to warranty document.
  • Product Width: 4.7 in
  • Product Length/Depth: 3 in
  • Product Height: .6 in
  • Type: 4-conductor jack
  • Material: Thermoplastic elastomer (TPE)
  • Design type: Jack
  • Style: Standard
  • Device type: Data/voice modular jack
  • Cable type: RJ11, RJ14
  • Connector type: Type 630A screw terminals
  • Wire type: Type 630A

Typical Applications

  • Commercial Telephone Wiring
  • Residential Telephone Installations
  • Data/Voice Modular Jack Connections
  • Surface-Mount Box Installations
  • Renovation and New Construction Telecom Wiring

Why Eaton?

Eaton builds this Data/Voice Modular Jack Wallplate from durable Thermoplastic elastomer (TPE) with Type 630A screw terminal connections for dependable telephone circuit termination. Backed by cULus Listing and RoHS Compliance, it delivers code-compliant, reliable performance for commercial and residential telephone wiring projects.

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Manufacturer Resources

Product Specs

Product Width:
4.7 in
Certifications:
cULus Listed
Product Length/Depth:
3 in
Application:
Commercial, residential telephone
Product Height:
.6 in
Product Type:
Data & Multimedia Wallplate
Product Material:
Thermoplastic elastomer (TPE)
Design Type:
Jack
Warranty:
Refer to warranty document.
Product Style:
Standard
Compliances:
RoHS Compliant
Device Type:
Data/voice modular jack
Cable Type:
RJ11, RJ14
Connector Type:
Type 630A screw terminals
Wire Type:
Type 630A
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Wallplates
Product Weight:
0.12 lb
Product Length:
3 in

Eaton 3521-4V – Frequently Asked Questions

1) Does the Eaton 3521 phone jack need a wall box, or can it mount on the surface of finished drywall?
No box cutting required. The Eaton 3521 data/voice modular jack is a surface mount box style unit, so the body itself is the enclosure and it screws straight to finished drywall, block, or baseboard. That makes it the usual pick for retrofit telephone drops where you don't want to open the wall. Overall footprint is 4.7 in wide by 3 in long/deep by .6 in high.
2) Will a standard RJ11 telephone cord plug into the Eaton 3521 surface jack?
Yes. The jack is a 4-conductor modular jack and accepts both RJ11 and RJ14 cable types, which covers a standard single-line telephone cord as well as a two-line RJ14 setup on the same four conductors.
3) How is the station wire terminated in the Eaton 3521 jack, punch down or screws?
Screws. It uses Type 630A screw terminals with Type 630A wire type, so you strip and land the four conductors under terminal screws. No punch-down tool or 110 block needed, which is why it suits quick residential and commercial telephone work.
4) Can a Pass & Seymour WPB blank wallplate be used in place of the Eaton 3521 data/voice jack plate?
No. The Eaton 3521 is a surface-mount box-style device with a built-in 4-conductor data/voice modular jack wired to Type 630A screw terminals, so it terminates the telephone pair and presents an RJ11/RJ14 port. The Pass & Seymour WPB-1 is a blank wallplate in brushed aluminum, which has no opening and no connector at all - it closes off a box rather than landing conductors. Use the WPB-1 where a box is being abandoned or covered, and the Eaton 3521 where a working phone or voice drop is needed.
5) What colors does the Eaton 3521 modular jack wallplate come in?
Two: Almond (3521-4LA) and Ivory (3521-4V). If you are matching an existing run of older telephone outlets in an apartment building or office, Ivory is typically the closer match to legacy devices and Almond the warmer tone.
6) I need a flush plate for an existing wall box, not a surface jack. Is the Eaton 3521 the right part?
No. The 3521 is a surface mount box with the jack built in, so it sits proud of the wall and is not intended to cover a recessed device box. For a flush plate over an existing box, look at a standard 1-gang plate such as the Bryant P8 Series duplex plate or the Pass & Seymour SPJ Series toggle plate, or the WPB Series blank if you are just closing off an unused box.
7) What should I order instead of the Eaton 3521 jack plate if the opening is a duplex receptacle?
The Eaton 3521 only accepts a telephone connection - it is a jack-design device with an integral 4-conductor modular jack, with no receptacle opening. For a single duplex receptacle, the Bryant P8 Series 1-gang duplex wallplate is the matching cover. For three duplex receptacles in a 3-gang box, the Mulberry 76103 is a Princess-size steel 3-gang plate with three duplex openings.
8) I need a phone jack and a switch or receptacle at the same location - is the Eaton 3521 the right part?
The Eaton 3521 is a single-purpose surface-mount box with a data/voice modular jack; it does not include a switch or receptacle opening. For a two-gang opening that mixes device types, the Pass & Seymour TP126-LA Trademaster is a two-gang combination nylon wallplate, and the Mulberry 76432 and 76532 are 2-gang combination plates in cold rolled steel. Those are flush plates for devices already mounted in the wall box, so the phone jack itself would be supplied separately.
9) Is the Cooper 2138WBOX a direct replacement for the Eaton 3521-4V?
They are different device classes. The Eaton 3521-4V is an ivory surface-mount box carrying a 4-conductor data/voice jack with Type 630A screw terminals. The Cooper Wiring Devices 2138WBOX is a 21 Series thermoset combination wallplate in white - a cover plate, not a telephone termination. If the existing wall has a 630A phone jack to replace, the Eaton 3521 is the matching part; the Cooper plate suits a combination device opening instead.
10) Which Eaton part number do I order for the ivory telephone surface jack?
Order 3521-4V for Ivory. The Almond version is 3521-4LA. Both are the same 4-conductor Type 630A screw terminal surface jack, differing only in color.
11) My plates are oversize - can I match the Eaton 3521 to jumbo trim?
The Eaton 3521 is a Standard-style device measuring 4.7 in wide by 3 in long by .6 in high, so it is a self-contained surface box rather than a trim-sized flush plate. Where oversize trim is the standard on the job, the Pass & Seymour SPJ Series is a junior-jumbo thermoset plate with a toggle switch opening, and the Mulberry 76103 uses the Princess size. Those are switch and receptacle covers, so the voice drop would still come from the 3521.
12) Does the Eaton 3521 come in a metal body like the Mulberry plates?
The Eaton 3521 body is molded thermoplastic elastomer, offered in almond (3521-4LA) and ivory (3521-4V). The Mulberry 76432 and 76532 2-gang combination plates are cold rolled steel, and the Mulberry 76103 3-gang plate is steel. The steel plates are flush device covers, so they are an alternative where a metal finish is required at a switch or receptacle - not a swap for a jack-equipped surface box.
How fast can I get the Eaton 3521-4V delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Eaton 3521-4V come with a warranty?
Absolutely. The Eaton 3521-4V is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Eaton 3521-4V?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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