| SIZE: | GSM20 = Actuator Frame Size 56,9 mm |
| STROKE: | 03 = Stroke 76 mm |
| LEAD: | 02 = 5.08 mm per rotation |
| MOUNTING: | F = Front flange |
| ROD_END: | A = Male, metric thread |
| AMPLIFIER: | AD4 = Encoder type AD4 |
| STATOR: | 158 = 1 stack, 400 Vrms |
| OPTIONS: | RB = Rear electric brake |
| OPTIONS: | PB = Protective bellows |
| OPTIONS: | XM = Special Option |
