SKU: 3421007280

Audac ARU204 Multi Channel Digital Relay Unit - 4 Relays

Sale price$163.80 Regular price$182.00
Save 10%

Pay in installments of $45.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Audac ARU204 Multi Channel Digital Relay Unit - 4 RelaysThe ARU204 is specially designed with flexibility and functionality in mind. Various ways of switching the 4 relays are provided, these include the integrated web interface, optional paging consoles and analogue contact triggering making the ARU204 AUDACs smartest and most innovative relay modules. With this ingenious device, switching between audio sources, signal routing, and even customized automation setups are obtainable. The bipolar relays allow

The ARU204 is specially designed with flexibility and functionality in mind. Various ways of switching the 4 relays are provided, these include the integrated web interface, optional paging consoles and analogue contact triggering making the ARU204 AUDAC’s smartest and most innovative relay modules.

With this ingenious device, switching between audio sources, signal routing, and even customized automation setups are obtainable. The bipolar relays allow switching of balanced mono signals as well as unbalanced stereo signals. Normal open and normal closed contacts are provided as well. A wide variation of signals can be switched, ranging from line-level audio signals to amplified loudspeakers signals (Low impedance or 100V) and voltage distribution (low voltage up to 240 V AC mains voltage distribution).

Possibility for triggering relays through dry contact inputs, which can be used for triggering relays through external devices or actuators. Dry contacts priority over the digital functions/triggers. Typical applications are activations by external buttons, switches or alarm contacts.

Thanks to its modular nature, the ARU204 is perfectly suitable for small home or retail applications as well as big installations. Integration of numerous ARU20x units in one system is possible due to the RS485 which allows daisy-chaining of multiple units. The ARU208 features an RS485 in and output connector, allowing even more convenient connections. The TCP/IP control possibilities allow integration of the ARU20x’s in any ethernet network. The integrated web-browser running an HTML5 interface allows the most flexible and complete operation while the freely available command set allows integration with any TCP/IP based control or automation system.

The front of the black ABS housing provides a brief overview of its connection possibilities, while the back is equipped with a spring mount mechanism allowing easy mounting on widely available standard DIN rails. This way it’s possible to easily integrate it in any electrical cabinet where it can be powered using the optional PSD24x power supply.

Features

  • Compatible with AUDAC Touch™
  • Remote control web interface (HTML5)
  • DIN rail mounting enclosure
  • RS485 & TCP/IP controllable
  • Pre-programmed timed relay triggering
  • Terminal block connection (In- and output)
  • Double pole relays with Normal Open (NO) and Normal Closed (NC) contacts

Specifications

Number of relays 4
Contacts Normal open & normal closed
Control Digital communication bus (RS-485)
Manual (contact) relay activation
TCP/IP
Audac Touch™
Connectors RJ45 (Ethernet)
1 x RJ45 (RS-485 + Audio)
Max. cable length 300 m
Connection standard TIA/EIA T568B
Relay Type Two pole type
Inputs Signal 8 x 3-pin screw terminal for A & B input
Outputs Signal 8 x 2-pin screw terminal
Power Consumption 6 W (max.)
Supply 24 V DC
Product Features
Dimensions 107 x 87.5 x 54 mm (W x H x D)
Weight 0.2 kg
Data protocol RS-485
Required cabling UTP CAT5E
Colours Black
Construction ABS
Accessories Optional PSD24x external Power supply
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3421007280

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 19 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
Dollbaby
Dallas, US
★★★★★ 5
Open toe laser shoe
Size: 8, Color: Off White Nubuck
The shoes fits fine, I love how they look on my feet
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
L
LeeLee 44268
Chelsea, US
★★★★★ 5
True to size
Size: 9.5, Color: Tusk
I want to start off by saying I ordered a 9 and 1/2 and these fit perfectly so they are true to size. They are fairly comfortable in the heel isn't too high but is wide so they're very stable to walk in. They look great and can be styled in a variety of ways I have worn them with jeans but also a nice sundress and it works both ways. I've been wearing these for several months and they've held up really well and still look great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
M
Mom of Kids and Farm Animals
Massapequa, US
★★★★★ 5
Daughter ranks it 5/5. I rank them 4/5 due to heel comfort.
Size: 8, Color: Black, Size: 8, Color: Black
My foot is 9.44 inches long which usually places me in a 7.5. For this chart, it suggested the size 8. It's a perfect fit. The back zipper is easy enough to use. You don't even really need to undo the top strap once you have it adjusted to your preferred spot. My foot is narrow to normal around the heel and I'm wider in the toe box. These heels accommodate that well. I have plenty of room around my toes. The toe strap isn't smashing down either. The shoes seems well-made. The straps do not have a threads hanging. There's no sloppy glue drips around the bed. The bottom is strong and the heel is solid. I'm not a huge fan of thicker/chunky heel looks usually. I like the skinner heel styles mostly but ... there's a big positive to the chunky heels. They're very easy to walk in. Great heels for non-formal occasions. The bottom is not slippery. The cushioning around the toes in very nice. My only complaint is that the cushioning by the heel feels inadequate- especially at this price. It feels like you're walking on a block of wood. For that reason, I gave them to my middle schooler. She's thrilled. She pranced around the house in them testing them out for herself. She adjusted well to walking in them and she finds them comfy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
A
AmazonCustomer
Dallas, US
★★★★★ 5
Lucky Brand womens Herrika
Size: 9, Color: Smoke Grey
These shoes are some of the comfiest heels I've ever worn! The heel actually has a nice height to it, but it's at a gentle slope that feels very comfortable. The heel itself is thicker, which makes it easier to walk, and I love the ankle strap for added security. The shoe's construction is solid, the materials are durable, and the zipper at the back of the ankle moves smoothly. I got the smoke grey color, which I think is really more of a lighter skin tone color, so I don't really agree with the name, but the color is accurately represented by the photos on the product page. This is a great neutral shoe that will pair with many different outfits. It's high quality and versatile, so I think it's well worth the cost. I love my new shoes!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
R
ResqGaming
Belleville, US
★★★★★ 5
Well made, true to size, comfortable, and attractive looking!
Size: 12, Color: Black
Wife was wanting a new pair of heels for a work party she has coming up and I happened to see these and thought they strongly resembled what she was looking for so I got them as a surprise for her. They arrived a few days ago and she tried them on that night and wore them around the house and to work a couple times to see how she likes them. So far, she is extremely pleased with them! She said they fit perfect and she's had no issues with comfort wearing them all day for work. She really likes the wider heel as it gives her more stability. Her favorite thing so far though has been all the compliments/comments she's getting from the other ladies in her office about them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026

recommand products