本系列连接器芯数范围从三芯到十四芯，连接方式有螺纹式和压接式。
C 091D 系列连接器能防止电磁干扰，保护级别为 IP67 。
C 091 A/B/D 系列主要应用于工业控制、数据处理设备，测试和医疗仪器，通信、网络设备，测试以及户外或航海等场合。
图纸如下：
| COMMON CHARACTERISTICS |
| No. of contacts | | 4 |
| Contact arrangement (IEC) | IEC 60130-9 | 60130-9 |
| Version | | Straight |
| Cable diameter | | 6-8 mm |
| ELECTRICAL CHARACTERISTICS |
| Rated voltage | DIN EN 60664-1 / IEC 60664-1 | 300V |
| Rated voltage | UL 1977 | 250V |
| Rated impulse voltage | DIN EN 60664-1 / IEC 60664-1 | 1500V |
| Installation category | DIN EN 60664-1 / IEC 60664-1 | I |
| Insulation group | DIN EN 60664-1 / IEC 60664-1 | II, 400 ≤ CTI < 600 |
| Insulation resistance | DIN EN 60512-2, Test 3a / IEC 60512-2, Test 3a | > 1010 ? |
| Contact resistance | DIN EN 60512-2, Test 2a / IEC 60512-2 Test 2a | < 5 m? |
| Pollution degree | DIN EN 60664-1 / IEC 60664-1 | 1 |
| CLIMATICAL CHARACTERISTICS |
| Climatic category | DIN EN 60068-1 / IEC 60068-1 | 40 / 100 / 56 |
| Temperature range | | - 40 °C ... + 100 °C
- 40 °F ... + 212 °F |
| MECHANICAL CHARACTERISTICS |
| IP degree of protection | DIN EN 60529 / IEC 60529 | IP 40 |
| Insertion and withdrawal force | DIN EN 60512-13-2, Test 13b / IEC 60512-13-2, Test 13b | 30 N
110.oz |
| Mechanical lifetime | IEC 60512-5, Test 9a | ≥ 500 mating cycles |
| Strain relief | | Clamping ring |
| MATERIALS |
| Insert | | Thermoplastic |
| Contact plating | | silver plated |
| Housing | | die cast, nickel plated |
| FURTHER CHARACTERISTICS |
| Termination | | solder |
| Wire gauge | | ≤ 0,5 mm² |
| Wire gauge (AWG) | | ≤ 20 |
| Flammability | UL 94 | UL 94 V0 |
| Locking | | bayonet locking inside |
