This is a 
EN18ABHB11A0F26 Rotary Encoder , Mechanical, Absolute, 24 PPR, 16 Detents, Horizontal, Without Push Switch product from TT ELECTRONICS / BI TECHNOLOGIES with the model number EN18ABHB11A0F26
Other details
| Brand | TT ELECTRONICS / BI TECHNOLOGIES | 
| Part Number | EN18ABHB11A0F26 | 
| Quantity | Each (Supplied on Cut Tape) | 
| Technical Data Sheet EN |  | 
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