| Code | SM4.21 |
| GTIN | 6418677403965 |
| Name | Parallel groove connector |
| Al 50-240 mm² / Cu 10-95 mm² | |
| Description | SM4.21 is for non tension aluminium to copper connections. As the upper section of the connector is divided, two copper branch conductors with different diameters can be connected to the aluminium main conductor. The connectors are brushed and prepared with joint compound, thus only the conductors need brushing and greasing. Equipped with two M10 bolts. |
| Vendor | Ensto Finland Oy |