| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | SP4-PS | SOCKET PCB FOR SP4 RELAYSRelay Socket Through Hole | Panasonic Electric Works |
| 2 | 2900261 | PLC-BPT- 24DC/21RWRelay | Phoenix Contact |
| 3 | SH4B-05 | SOCKET DIN MOUNT SCREW TYPERelay Socket DIN Rail | IDEC |
| 4 | PRD-11DY0-24 | RELAY GEN PURPOSE DPDT 25A 24VGeneral Purpose Relay DPDT (2 Form C) 24VDC Coil Chassis Mount | TE Connectivity Potter & Brumfield Relays |
| 5 | RTB34012 | RELAY GEN PURPOSE SPST 12A 12VGeneral Purpose Relay SPST-NO (1 Form A) 12VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 6 | T9GV1L14-22 | T9GV1L14-22General Purpose Relay SPST-NO (1 Form A) 22VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 7 | 70RCK24-HS | I/O MOUNTING BRD STANDARD 24POSI/O Module Rack 24 Channel | Grayhill Inc. |
| 8 | MS-16H | I/O MOUNTING BOARD MINI 16POSI/O Module Rack 16 Channel | Sensata-Crydom |
| 9 | PB-16HQ | I/O MOUNTING BOARD QUAD 16POSI/O Module Rack 16 Channel | Sensata-Crydom |