| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | TX2-L-4.5V | RELAY TELECOM DPDT 2A 4.5VTelecom Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 2 | AGQ20TS1HX | RELAY GEN PURPOSE DPDT 2A 1.5VGeneral Purpose Relay DPDT (2 Form C) Surface Mount | Panasonic Electric Works |
| 3 | HC4-PS-K-H105 | ACCY RELAY BOARD SOCKET HJRelay | Panasonic Electric Works |
| 4 | 2900281 | PLC-BPT-230UC/21Relay | Phoenix Contact |
| 5 | PY11 | RELAY SOCKET BACK CONNECTINGRelay Socket Panel Mount | Omron Automation and Safety |
| 6 | SF1V-4-07L | SOCKET DIN MOUNT 4POLE RF1VRelay Socket DIN Rail | IDEC |
| 7 | PT570110 | RELAY GEN PURPOSE 4PDT 6A 110VGeneral Purpose Relay 4PDT (4 Form C) 110VDC Coil Socketable | TE Connectivity Potter & Brumfield Relays |
| 8 | G6D-1A-ASI-NPDC21 | RELAY GEN PURPOSE SPST 5A 21VGeneral Purpose Relay SPST-NO (1 Form A) 21VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 9 | 70RCK8-HL | I/O MOUNTING BOARD STANDARD 8POSI/O Module Rack 8 Channel | Grayhill Inc. |