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Reliance Controls

Model # THP108

Internet # 202216506

PowerBack Utility Power Return Alert

$32.49 /each

Frequently Bought Together

Product Overview

The PowerBack is intended to be installed on a manual transfer panel or generator-ready load center. During a power outage, when the main breaker has been turned off to allow the generator to provide emergency power to the panel, the PowerBack can be activated and will emit a pulsing 105dB alarm when the power outage ends and utility power is again available. The PowerBack installs in a 1/2 trade size knockout in the panel within 20 in. of one of the utility hot legs. It includes an eight-inch current sensing antennae at the end of a 22 in. jacked lead. When wrapped around one of the hot legs to the main circuit breaker, the antennae will detect the returning utility current and activate the sonic alert.

  • Lights for "System Armed" and "Low Battery"
  • 9 Volt battery not included
  • UL Listed
  • 5 year warranty

Info & Guides

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Specifications

Dimensions

Load center depth (in.) 
Load center height (in.) 
Load center width (in.) 

Details

Electrical Product Type 
Alarm Sensor/Control Center 
Load Center Type 
Temporary Power 
Maximum Amperage (amps) 
Mounting type 
Surface 
Number of Gangs 
Number of Outlets 
Number of Phases 
Number of Spaces 
Power Distribution Features 
No Additional Features 
Product Weight (lb.) 
0.5 lb 
Returnable 
90-Day 
Voltage (volts) 

Warranty / Certifications

Certifications and Listings 
1-UL Listed,cUL Listed 
Manufacturer Warranty 
5 years 

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Customer Questions & Answers

4 Questions8 Answers

Customer Questions & Answers

PowerBack Utility Power Return Alert
PowerBack Utility Power Return Alert

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2 answers

Suggestion for an suitable enclosure for mounting to an outdoor main panel?

This question is from PowerBack Utility Power Return Alert
Asked by
bgeery
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April 13, 2014
My panel is on the exterior of the house. I'm looking for a box I can mount to the bottom of the panel via one of the knock-outs that will enclose and protect the Powerback device from weather.
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Answers (2)

Asked by
Ashton, WV
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Home Improvement Profile: DIYer
June 23, 2015
Answer: 
Given the size of the unit you may be able to use one of the hooded outdoor receptacle boxes with the clear cover. 2 gang size should work. May not be as audible but would be fairly weatherproof.
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April 14, 2014
Answer: 
This product is intended for indoor use, but perhaps a standard outdoor electrical enclosure would work in your application.
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2 answers

When will this item be back in stock?

This question is from PowerBack Utility Power Return Alert
Asked by
Milford, PA
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December 1, 2013
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Answers (2)

Asked by
NH
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December 10, 2013
Answer: 
Suggest you purchase on-line via HomeDepot.com and pick-up at your local store. That's how I got mine, took about a week.
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December 2, 2013
Answer: 
Thank you for your recent inquiry with The Home Depot. This item is scheduled to return to stock in early to mid December with limited inventory. Please continue to check our website for updates. For any other questions, please call us at HomeDepot.com Customer Service 800-430-3376.
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2 answers

Is these in stock now?

This question is from PowerBack Utility Power Return Alert
Asked by
ray ray
February 24, 2013
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Asked by
Pa
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July 9, 2013
Answer: 
Check at Home depot.com for availability of this item.
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February 25, 2013
Answer: 
Yes, these are back in stock. The new ones are louder, too.
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2 answers

Hello, When will the Reliance Controls PowerBack Utility Power Return Alert be available to order? Model # THP108

This question is from PowerBack Utility Power Return Alert
Asked by
Jennifer
September 10, 2012
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Answers (2)

Asked by
Pa
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July 9, 2013
Answer: 
Check with homedepot.com
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September 10, 2012
Answer: 
We expect these to be available the last week of October.
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Customer Reviews

Rated 4.4 out of 5 by 38 reviewers.
Rated 5.0 out of 5.0 by Nice addition I like this piece because it lets you know when utility power is restored. And boy does it let you know! The thing I didn't like about it was how it mounts. It is intended for a panel that is exposed, not finished into the wall like mine. I mounted it to a metal 3 gang plate and used a pull elbow to get antennae and ground wire into the wall. It works great and helped to complete my generator install. April 26, 2016
Rated 5.0 out of 5.0 by Powerback Installation was easy.works as described Loud enough to hear from basement. April 5, 2016
Rated 5.0 out of 5.0 by Great solution to power restoration when using a backup generator. Excellent product to use if you run generator power and want to be notified when street power comes back on service. March 13, 2016
Rated 5.0 out of 5.0 by Great Value ! Easy to install and works great. I did not have room to mount on top of the power panel as suggested due to all the wires, so I mounted mine on a 3/4" PVC LB that I mounted on the side of my power panel at a knockout within easy reach. When activated by a power return it is VERY LOUD and can be heard throughout the house. So loud it almost hurts while getting to it to turn it off. I used to watch for neighbor's lights to come back on, now I know immediately when I can switch back from the generator. December 10, 2013
Rated 5.0 out of 5.0 by Reliable and loud as advertised Connecting device is quite simple. I used zip ties to secure the lead to one of the 2 hot wires coming in from the power company. Sound is plenty loud; I could hear from inside house furthest point to device in garage. Mounted right above power panel. Used wall plate to conceal wiring and double face tape to adhere device to wall plate for "cosmetic appearance". Wish I ordered sooner since I connect my power generator directly to power panel through double breakers. April 8, 2014
Rated 5.0 out of 5.0 by Works as advertised! Unit works great. Wrap around hot leg with electrical tape. This gives a tight fit. Sonalert is loud and I can hear it well at all locations. Added benefit is a magnet is on the back of the unit so you can place it on the box if the box is recessed. Good pricepoint as well. June 18, 2013
Rated 5.0 out of 5.0 by Great device When the power is out and a generator is used to power the house it is not clear just when power has been restored. This device is the answer. December 22, 2015
Rated 5.0 out of 5.0 by great add on to generator set up ordered through homedepot.com and had delivered to store .was easy to install i removed the panel and wrapped the antenna around the hot (main wire ) . but be very care full even if the main breaker is switched off the wire you will be wrapping the antenna to is always hot DO NOT attempt it if you are not confident you can do this. BUT overall it was not that hard to install i did use zip ties to secure the antenna to the hot wire . also 9 volt battery is needed and not included. then switch to on and loud alarm goes off .. as far as sound volume it is loud sounds like a loud smoke detector . over all very easy to install and well worth it for letting you know when power has been restored INSTEAD of burning unnecessary fuel from the generator.could actually pay for itself by saving fuel money October 1, 2015
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