The ST 4 is a single-level spring-clamp terminal block from Phoenix Contact, mounted on 35 mm DIN rail with a 6.2 mm grid dimension. Rated at 32 A and 800 V for solid conductors up to 6 mm², it accepts flexible conductors from 0.08 to 4 mm² without pre-treatment. The block is Ex-e certified and rated from -60 to +110 °C.
| Manufacturer part number (MPN) | ST 4 |
| EAN / GTIN | 4017918186838 |
| Sales unit | pcs |
| Package quantity | 50 pcs |
| Conductor cross-section | 0.08-4.0 mm² |
| Suitable for conductor material | Aluminium/copper |
| Connectable conductor cross section solid-core | 0.08–6 mm² |
| Connectable conductor cross section multi-wired | 0.08–4 mm² |
| Rated current In | 32 A |
| Rated voltage | 800 V |
| Type of electrical connection 1 | Spring clamp connection |
| Type of electrical connection 2 | Spring clamp connection |
| Number of levels | 1 |
| Number of clamp positions per level | 2 |
| Mounting method | DIN rail (top hat rail) 35 mm |
| Operating temperature | -60–110 °C |
| Width | 6.2 mm |
| Width/grid dimension | 6.2 mm |
| Height | 56 mm |
| Depth | 36.5 mm |
| Length | 56 mm |
| Explosion-tested version 'Ex e' | Yes |
| Closing plate required | Yes |
| Colour | Grey |
| Internally connected stages | Yes |
| Country of origin | Germany |
| MOQ | 1 |