Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Notifications
Login / Register
Community
Community
Notifications
close
  • Forums
  • Knowledge Center
  • Events & Webinars
  • Ideas
  • Blogs
Help
Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Login / Register
Sustainability
Sustainability

We Value Your Feedback!
Could you please spare a few minutes to share your thoughts on Cloud Connected vs On-Premise Services. Your feedback can help us shape the future of services.
Learn more about the survey or Click here to Launch the survey
Schneider Electric Services Innovation Team!

Blown PDUs?

APC UPS Data Center & Enterprise Solutions Forum

Schneider, APC support forum to share knowledge about installation and configuration for Data Center and Business Power UPSs, Accessories, Software, Services.

cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Show  only  | Search instead for 
Did you mean: 
  • Home
  • Schneider Electric Community
  • APC UPS, Critical Power, Cooling and Racks
  • APC UPS Data Center & Enterprise Solutions Forum
  • Blown PDUs?
Options
  • Mark Topic as New
  • Mark Topic as Read
  • Float this Topic for Current User
  • Bookmark
  • Subscribe
  • Mute
  • Printer Friendly Page
Invite a Co-worker
Send a co-worker an invite to the portal.Just enter their email address and we'll connect them to register. After joining, they will belong to the same company.
You have entered an invalid email address. Please re-enter the email address.
This co-worker has already been invited to the Exchange portal. Please invite another co-worker.
Please enter email address
Send Invite Cancel
Invitation Sent
Your invitation was sent.Thanks for sharing Exchange with your co-worker.
Send New Invite Close
Top Experts
User Count
BillP
Administrator BillP Administrator
5060
voidstar_apc
Janeway voidstar_apc
196
Erasmus_apc
Sisko Erasmus_apc
112
Teken
Spock Teken
112
View All

Invite a Colleague

Found this content useful? Share it with a Colleague!

Invite a Colleague Invite
Solved Go to Solution
Back to APC UPS Data Center & Enterprise Solutions Forum
Solved
BillP
Administrator BillP Administrator
Administrator

Posted: ‎2021-06-28 02:42 AM . Last Modified: ‎2024-02-14 10:51 PM

0 Likes
5
1814
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-06-28 02:42 AM . Last Modified: ‎2024-02-14 10:51 PM

Blown PDUs?

We recently purchased some PDUs (AP7811s) from a vendor which listed them as "refurbished". Upon installation, it became apparent that hte units were not fuctioning properly. Input power brought the unit up, but power was not be distributed out the output ports. Management showed all systems nominal. Furher investigation revealed that the "fuse" switches (I don't know the proper term) did not engage properly. What I mean is, on a functioning unit. using a flat-head screwdriver to push on the switch flips it with a solid thunk and the power cuts out. Pushing the "on" side of the switch gives you resistance and the switch engages again with a click and the power resumes to the bank. On these units, that does not happen. The switches do not cutout but pushing the off button merely changes the state of the plastic switch, without resistance and no click. Same with turning the switch back "on" again, although at no point is any power getting to the bank.

Is this a case of a blown part? Is this end-user repairable? I am reticent to bother with these units and prefer to just return them and get my money back but I just want to confirm that this would seem proper. Reviewing the manuals shows me nothing about these switch states and what has happened if they can be engaged without action.

We have other identical units that act as I would expect.

Comments? Am I missing something?

Labels
  • Labels:
  • Racks, Rack Accessories, & Cooling
Reply
Contact Support

Link copied. Please paste this link to share this article on your social media post.

  • All forum topics
  • Previous Topic
  • Next Topic

Accepted Solutions
Anonymous user
Not applicable

Posted: ‎2021-06-28 02:42 AM . Last Modified: ‎2024-02-14 10:51 PM

0 Likes
0
1813
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-06-28 02:42 AM . Last Modified: ‎2024-02-14 10:51 PM

These rPDU's have what is called a mid-trip breaker. You need to push the breaker into the full off position before you can push it to the full on position. If the breaker is tripped due to an overload it should go to the mid-trip position, and will need to be reset before being usable again.

Use a small screw driver and push through the breaker slot until the breaker engages the off position. Then push it to the on position.

See Answer In Context

Reply
Contact Support

Link copied. Please paste this link to share this article on your social media post.

Replies 5
Anonymous user
Not applicable

Posted: ‎2021-06-28 02:42 AM . Last Modified: ‎2024-02-14 10:51 PM

0 Likes
0
1813
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-06-28 02:42 AM . Last Modified: ‎2024-02-14 10:51 PM

You sound like you are familiar with the proper procedure for resetting the circuit breakers which can be difficult in itself. From the description provided and the fact you have other units of the same model behaving differently, I would think your best option would be to return these to the purchaser. Did you purchase these direct from APC or a company that sells refurbed units?

Reply
Contact Support

Link copied. Please paste this link to share this article on your social media post.

BillP
Administrator BillP Administrator
Administrator

Posted: ‎2021-06-28 02:42 AM . Last Modified: ‎2024-02-14 10:51 PM

0 Likes
0
1813
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-06-28 02:42 AM . Last Modified: ‎2024-02-14 10:51 PM

We purchased them from a reseller who advertised them as refurbished. Certainly all normal "buyer beware" notices apply in such a situation although the seller affirmed the units were functioning properly. They have a money back guarrantee so I assume I'll be ok.

Reply
Contact Support

Link copied. Please paste this link to share this article on your social media post.

BillP
Administrator BillP Administrator
Administrator

Posted: ‎2021-06-28 02:42 AM . Last Modified: ‎2024-02-14 10:51 PM

0 Likes
0
1812
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-06-28 02:42 AM . Last Modified: ‎2024-02-14 10:51 PM

Mmmmm, just to make sure that we are talking about the same thing - when you talk about resetting the circuit breakers, are you talking about replacing parts inside the unit? I assume not and that you're just talking about resetting the external switches. Because I've not opened the things up and looked inside. Unless there is a way to do that without voiding the warranty, I will just return them.

Reply
Contact Support

Link copied. Please paste this link to share this article on your social media post.

Anonymous user
Not applicable

Posted: ‎2021-06-28 02:42 AM . Last Modified: ‎2024-02-14 10:51 PM

0 Likes
0
1812
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-06-28 02:42 AM . Last Modified: ‎2024-02-14 10:51 PM

Hello,

The circuit breakers would be on the outside near the input power cord. Do not open up the PDU, as like you said, it will void warranties.

Reply
Contact Support

Link copied. Please paste this link to share this article on your social media post.

Anonymous user
Not applicable

Posted: ‎2021-06-28 02:42 AM . Last Modified: ‎2024-02-14 10:51 PM

0 Likes
0
1814
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-06-28 02:42 AM . Last Modified: ‎2024-02-14 10:51 PM

These rPDU's have what is called a mid-trip breaker. You need to push the breaker into the full off position before you can push it to the full on position. If the breaker is tripped due to an overload it should go to the mid-trip position, and will need to be reset before being usable again.

Use a small screw driver and push through the breaker slot until the breaker engages the off position. Then push it to the on position.

Reply
Contact Support

Link copied. Please paste this link to share this article on your social media post.

Preview Exit Preview

never-displayed

You must be signed in to add attachments

never-displayed

 
To The Top!

Forums

  • APC UPS Data Center Backup Solutions
  • EcoStruxure IT
  • EcoStruxure Geo SCADA Expert
  • Metering & Power Quality
  • Schneider Electric Wiser

Knowledge Center

Events & webinars

Ideas

Blogs

Get Started

  • Ask the Community
  • Community Guidelines
  • Community User Guide
  • How-To & Best Practice
  • Experts Leaderboard
  • Contact Support
Brand-Logo
Subscribing is a smart move!
You can subscribe to this board after you log in or create your free account.
Forum-Icon

Create your free account or log in to subscribe to the board - and gain access to more than 10,000+ support articles along with insights from experts and peers.

Register today for FREE

Register Now

Already have an account? Login

Terms & Conditions Privacy Notice Change your Cookie Settings © 2025 Schneider Electric

This is a heading

With achievable small steps, users progress and continually feel satisfaction in task accomplishment.

Usetiful Onboarding Checklist remembers the progress of every user, allowing them to take bite-sized journeys and continue where they left.

of