| SIMATIC S7-300, Front connector for signal modules with screw contacts, 20-pole |
| General information |
| Product type designation | Front connector |
| Ambient conditions |
| Ambient temperature during operation |
| min. | 0 °C |
| max. | 60 °C |
| Ambient temperature during storage/transportation |
| min. | -40 °C |
| max. | 70 °C |
| Accessories |
| belongs to product | S7-300 |
| Connection method |
| Connection I/O signals |
| Connection method | Screw terminals |
| Number of lines per connection | 1; or combination of 2 conductors of up to 1.5 mm² (total) in a shared ferrule |
| Conductor cross-section in mm² |
| — Connectable cable cross-sections for massive cables, min. | 0.25 mm² |
| — Connectable cable cross-sections for massive cables, min. | 1.5 mm² |
| — Connectable cable cross-sections for flexible cables without end sleeve, min. | 0.25 mm² |
| — Connectable cable cross-sections for flexible cables without end sleeve, max. | 1.5 mm² |
| — Connectable cable cross-sections for flexible cables with end sleeve, min. | 0.25 mm² |
| — Connectable cable cross-sections for flexible cables with end sleeve, max. | 1.5 mm² |
| Conductor cross-section acc. to AWG |
| — Connectable cable cross-sections for massive cables, min. | 24 |
| — Connectable cable cross-sections for massive cables, min. | 16 |
| — Connectable cable cross-sections for flexible cables without end sleeve, min. | 24 |
| — Connectable cable cross-sections for flexible cables without end sleeve, max. | 16 |
| — Connectable cable cross-sections for flexible cables with end sleeve, min. | 24 |
| — Connectable cable cross-sections for flexible cables with end sleeve, max. | 16 |
| Wire end processing |
| — Stripped length of cables, min. | 6 mm |
| — Stripped length of cables, max. | 6 mm |
| — End sleeve acc. to DIN 46228 without plastic sleeve | Design A, 5 mm to 7 mm long |
| — End sleeve acc. to DIN 46228 with plastic sleeve | Design E, up to 6 mm long |
| Mounting |
| — Tool | Screwdriver, conical design, 3 mm to 3.5 mm |
| — Tightening torque, min. | 0.4 N·m |
| — Tightening torque, max. | 0.7 N·m |
| Dimensions |
| Width | 23 mm |
| Height | 131 mm |
| Depth | 36 mm |
| Weights |
| Weight, approx. | 70 g |
| last modified: | 03/13/2019 |
