| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | SP4-PS | SOCKET PCB FOR SP4 RELAYSRelay Socket Through Hole | Panasonic Electric Works |
| 2 | 2900452 | TERM BLOCKRelay Socket DIN Rail | Phoenix Contact |
| 3 | RPM1P | RP RELAY SOCKETRelay Socket DIN Rail | Carlo Gavazzi Inc. |
| 4 | 2974914 | I/O MOUNTING BOARD 8POSI/O Module Rack 8 Channel | Phoenix Contact |
| 5 | CRF05-1A | RELAY RF SPST 500MA 5V | Standex-Meder Electronics |
| 6 | 70GRCP32-HL | I/O MOUNTING BOARD G5 32POSI/O Module Rack 32 Channel | Grayhill Inc. |
| 7 | PB-32C4 | I/O MOUNTING BOARD C4 32POSI/O Module Rack 32 Channel | Sensata-Crydom |
| 8 | DRK1 | DIN BRACKET KIT 45MMMounting Bracket, Plate HS Series Heat Sinks | Sensata-Crydom |
| 9 | 9200-0124TR | RELAY RF SPST 500MA 5V | Coto Technology |