| MX66 Series Product Selection Table | |||
| Model | Coil Voltage | Coil Termination | Auxiliary Contact |
| MX66BD | 12 Vdc | Coil Screw, M4 | None |
| MX66BDB | 12 Vdc | Coil Screw, M4 | SPST, Normally Open |
| MX66CD | 24 Vdc | Coil Screw, M4 | None |
| MX66CDB | 24 Vdc | Coil Screw, M4 | SPST, Normally Open |
| MX66FD | 48 Vdc | Coil Screw, M4 | None |
| MX66FDB | 48 Vdc | Coil Screw, M4 | SPST, Normally Open |