| SIZE: | SR21 = Actuator Frame Size 56,9 mm |
| STROKE: | 06 = Stroke 152 mm |
| LEAD: | 01 = 2.54 mm per rotation |
| CONNECTORS: | M = Manufacturer’s connector |
| MOUNTING: | E = Extended tie rods |
| ROD_END: | M = Male, US standard thread |
| STATOR: | 138 = 1 stack, 230 Vrms |
| OPTIONS: | RB = Rear electric brake |
