Made in USA Flag All board products Proudly made in USA!

Manufacturer of computer controlled relay, I/O and custom boards for commercial and industrial applications.

Please Note: Pencom will be closed from September 12th thru September 23 - we will re-open on September 26

** Please note supply chain shortage update 09-07-2022 -  a limited supply of the backordered parts will be arriving around September 28th for the USB boards - more parts are on order:   We have many backordered boards that will be produced first - notifications will go out to customers to verify the orders are still valid.

There will be production delays due the volume of the backorders

Due to the supply chain shortages we have been having a difficult time obtaining parts to produce our products.  Some of our parts have been on order for 12 months  Some parts are being received for certain products and we will do our best to fulfill what we can.

In addition we have been experiencing problems with our email system and many emails were never received on the following accounts our and, this has been happening for some time and we were unaware since it is happening sporadically. 

We have created two new accounts to use until we can determine the problems we are having with our system and please use these emails to contact us.

Other email address have been the same problems and we will work to correct these too.

12VDC AC Adapter w/Interchangable plugs

Please note: These AC adapters and plugs are not produced by us - even though they are listed as a 2-3 day production under availability, these are of foreign origin and typically a stock item.

All plug versions may not be in stock at all times
US Plug Clip Brazil Plug Clip Europe Plug Clip India Plug Clip UK Plug Clip Argentina Plug Clip Australia/ New Zealand Plug Clip No Clip (replacement use only)
Typically a 2-3 Day Production <10pcs
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International/Domestic AC Adapter, 12VDC @1Amp. - for 8 channel relay boards

Note: Plug clip is required, please specify location - (or select NO plug Clip for the replacement AC adapter only).

  • 2.1mm X 5.5mm center positive DC Plug
  • Cable length 47 inches
  • 100~240VAC 50/60Hz
  • Uses interchangeable plug clips
  • RoHS Compliant.  

  Please Note when used with an enclosure:  this power supply will only fit the enclosures with the square power hole - not the older version with a round power hole in the enclosure.  If used with the older enclosure version with the round power hole, the hole in the enclosure must be enlarged to allow the DC power connector to seat property into the connector on the board.  The previous DC power supply used on the older boards had a longer barrel that would seat further into the connector.

Compatible Accessories & Components