| SIS Series 2 SIS 2 is a small two contact relay with forced guided contacts. |
| SIS 3 Series The very compact SIS3, 3-pole relay series with forced guide contactsin accordance with IEC 61810-3. According to its very small dimensions, this series of relays stands out for its high shock resistance, wide range of excitation voltages and low winding losses. |
| SIS3 SEN Series The very compact SIS3 SEN, 3-pole relay series with forced guide contacts in accordance with IEC 61810-3. According to its very small dimensions, this series of relays stands out for its high shock resistance, wide range of excitation voltages and low winding losses. |
| SIS 4 Series The very compact SIS4 series relay, 4-pole relay series with forced guide contacts in accordance with IEC 61810-3. According to its very small dimensions, this series of relays stands out for its high shock resistance, wide range of excitation voltages and low winding losses. |
| SIS 4 SEN Series The very compact SIS4 series relay, 4-pole relay series with forced guide contacts in accordance with IEC 61810-3. According to its very small dimensions, this series of relays stands out for its high shock resistance, wide range of excitation voltages and low winding losses. |
| SIS 6 Series The very compact SIS6, 6-pole relay series with forced guide contacts in accordance with EN 50205. According to its very small dimensions, this series of relays stands out for its high shock resistance, wide range of excitation voltages and low winding losses. |
| SIS 6 SEN Series Very compact SIS6, 6-pole relays with forcibly guided contacts in accordance with IEC 61810-3. According to its very small dimensions, this series of relays stands out for its high shock resistance, wide range of excitation voltages and low winding losses. |