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We have an expert support staff that can help you trouble shoot or you can access our technical support documentation in our tech support section.

Our pricing is already good, but we can offer additional discounts to resellers who buy from us regularly.

Qualitrol has been repairing and supplying PLC parts for over 25 years, we have huge inventory and expert technical support. You can buy New, Remanufactured or have you item repaired with 2 year warranty on Remanufactured products. Click here to learn more about Qualitrol.

We understand that dealing with a local supplier is more comforting dealing face to face. Qualitrol support PLC products all over the world, we can get you the part you need quicker than your local supplier, cheaper and with better technical knowledge and support. We specialize in PLC’s and Drives.

Celebrating 20 Years


Description: 1746-A4 is a 4 slot rack constructed to house modules from the SLC500 series. The 1746A4 rack requires its own power supply, which mounts on the left side of the chassis. With the 1746-A4  a maximum of 3 chassis can be joined with chassis interconnect cable.
Weight: 4.00 lbs.



New 1746-A4 (Learn More)
Price: $373.00 
Call for Availability

This item is currently out of stock – you may add to cart to back order this item or call 800-784-9385 or for more information click here to contact us for availability.

Factory New product, 1 year Factory warranty
Remanufactured 1746-A4 - 2 year Warranty (Learn More)
Price: $186.50 
Available now: 3
In Stock - Will Ship Today

Stock in Process: 12 - usually ships within 2 to 3 business days. For quicker delivery please call 800-784-9385 or click here to contact us.
Repair 1746-A4 (Learn More)
Price to Repair: $130.55 
To get your part repaired, fill out our repair form or call 800-784-9385 for more information.
Availability and Price last updated on 11:30 am Eastern Time March 27th, 2015


Revision Numbers: 1746-A4A, 1746-A4B, 1746-A4C, 1746-A4D, 1746-A4E, 1746-A4F, 1746-A4G, 1746-A4H, 1746-A4I, 1746-A4J, 1746-A4K, 1746-A4L, 1746-A4M, 1746-A4N, 1746-A4O, 1746-A4P, 1746-A4Q, 1746-A4R, 1746-A4S, 1746-A4T, 1746-A4U, 1746-A4V, 1746-A4W, 1746-A4X, 1746-A4Y, 1746-A4Z