Schneider Electric 172PNN21022


5 VDC Modbus Plus 9-pin D-shell Option Adapter

3 remanufactured in stock
2 year warranty
Call (800) 691-8511 for pricing
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Additional Information

Check out the rest of our Schneider Electric product line. Whether it's using our online instant quote feature, giving us a call, or sending us an email, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like 172PNN21022, take a look at more from our Modicon Communication line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. We offer a repair service on all of our products that keep your downtime to a minimum. To stay up to date on on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.


ManufacturerSchneider Electric
SeriesModicon Communication
Module formatStandard
Range of productModicon Momentum automation platform
Product or component typeModbus Plus option adaptor
Number of port1
Communication port protocolModbus Plus
Communication port typeSingle
[Us] rated supply voltage5 V DC
Input voltage tolerance+/- 5 %
SupplyVia I/O base
Clock drift+/- 13 s/day accuracy
Battery typeLithium < 30 day after the battery low indication 104 °F (40 °C)
Battery size2/3 AA
Battery life5 yr
Electrical connection1 connector D-shell 9 pins for Modbus Plus connection
Local signalling1 LED communication
Current consumption<= 350 mA 24 V DC
200 mA 24 V DC
Height0.98 in (25 mm)
Width5.63 in (143.1 mm)
Depth2.36 in (60.06 mm)


Payment Methods

We accept all major credit cards, wire transfers, and net terms for established customers.


We offer free 2 day shipping within the continental US for orders under 20lbs. We ship via all major carriers and can bill a customer’s shipping account if need be. Orders for stock items placed before 4PM eastern will ship out the same day, and we are able to accommodate after hours rush orders as well.

Core Exchange & Repair

Our core exchange program offers you credit for your faulty items, please ask about getting an RMA to send your core in with for credit. You can also send in your unit to be repaired, our standard turnaround for repairs is 5-7 days, and all of our repaired items look like new, and come with a 1 year warranty.