– 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-MXxxxxx | None | 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