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Product Status Note 2022 – Light Duty Encoders

– Light-Duty Encoder Family Redesign –

Date Issued: 3/7/2022
Date Updated: 6/28/2022

Product: All TRD-MX, TRDA-2E, and TRD-S(H) Series Light Duty Encoders

Part Number(s): See chart below

Notes: Due to engineering changes by the manufacturer, three series of light-duty encoders have been discontinued. Comparable replacements were redesigned for SOME models – see chart below for details.  Other TRD-series encoder models (medium and heavy-duty) are NOT affected by these changes.

Automation Direct placed a “last-time purchase” with our supplier to procure final stock of all affected models, and now has many months-worth of stock either on-hand or arriving soon for all the affected models (based on historical sales rates) – as of the issue date of this PSN

Please use the webstore Inventory Check feature for stock and delivery status of individual part numbers.  Parts will be discontinued once all deliveries are received from our supplier and stock is depleted.


Summary of Changes:

Existing Part Redesign Part Notes
TRD-MXxxxxxNone These parts will be discontinued once out of stock. No direct replacements will be available. See table below for recommended replacements.
TRDA-2Exxxxx TRD-SRxxxxx
TRD-SR are electrically identical and are mechanically similar to the TRDA-2E that they are replacing.  See table below for replacement part numbers and recommendations.
TRD-S(H)xxxxx
(‘H’ indicates hollow-shaft models)
TRD-S(H)Rxxxxx
TRD-S(H)R are mechanically and electrically identical to the TRD-S(H) models they are replacing.  They are drop-in replacements. See table below for replacement part numbers.

HOWEVER: certain models (based on PPR) are NOT being redesigned: TRD-S(H)250xD, TRD-S(H)300xD, TRD-S(H)400xD, TRD-S(H)800xD, TRD-S(H)1200xD. No direct replacement is available for those models. See table below for recommendations.

TRD-MXxxx

(xxx=PPR) Encoders that are Electrically Compatible Availablity Key Mechanical Differences
TRD-MXxxxAD TRD-SRxxxAD Available Now Mounting bolt circle, shaft size
TRD-MXxxxBD TRD-SRxxxAD Available Now
TRD-MXxxxVD TRD-SRxxxVD Available Now

TRDA-2Exxx

(xxx=PPR) Encoders that are Electrically Compatible Availablity Key Mechanical Differences
TRDA-2ExxxBD TRDA-20R1NxxxRZD Available Now Mounting bolt circle, shaft size (TRD-SR is metric. 
TRDA-2E and TRDA-20 are both SAE, but TRDA-20 is larger.)
TRD-SRxxx Available Now
TRDA-2ExxxVD TRDA-20R1NxxxVD Available Now
TRD-SRxxxVD Available Now

TRD-S(H)xxx (NOTE – some models are not being redesigned – see next chart)

(xxx=PPR) Direct Replacement Encoders Availablity Differences
TRD-SxxxAD TRD-SRxxx Available Now New encoders have CE-compliant rubber grommets
TRD-SxxxBD TRD-SRxxx Available Now
TRD-SHxxxAD TRD-SHRxxxA5D Available Now
TRD-SHxxxBD TRD-SHRxxxA5D Available Now
TRD-SxxxVD TRD-SRxxxVD Available Now
TRD-SHxxxVD TRD-SHRxxxV5D Available Now

TRD-S(H)xxx (models that are NOT being redesigned)

  Electrically compatible encoders Availability Key mechanical differences
TRD-S(H)250AD TRD-N250-RZWD Available Now Mounting bolt circle, shaft diameter
TRD-S(H)250BD TRD-N250-RZWD
TRD-S(H)250VD TRD_N250-RZVWD
TRD-S(H)300AD TRD-N300-RZWD
TRD-S(H)300BD TRD-N300-RZWD
TRD-S(H)300VD TRD_N300-RZVWD
TRD-S(H)400AD TRD-N400-RZWD
TRD-S(H)400BD TRD-N400-RZWD
TRD-S(H)400VD TRD_N400-RZVWD
TRD-S(H)800AD TRD-N800-RZWD
TRD-S(H)800BD TRD-N800-RZWD
TRD-S(H)800VD TRD_N800-RZVWD
TRD-S(H)1200AD TRD-N1200-RZWD
TRD-S(H)1200BD TRD-N1200-RZWD
TRD-S(H)1200VD TRD-N1200-RZVWD

* Check or bookmark this page for the latest info about the availability of the new parts