| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | TX2-4.5V | RELAY TELECOM DPDT 2A 4.5VTelecom Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 2 | 7004570 | RMOB-JR-2-110ACRelay Socket DIN Rail | Phoenix Contact |
| 3 | 2980238 | 6.2MM PLC BASIC TERM BLOCK 5VRelay Socket DIN Rail | Phoenix Contact |
| 4 | MKS2PI-2 DC12 | RELAY GEN PURPOSE DPDT 10A 12VGeneral Purpose Relay DPDT (2 Form C) 12VDC Coil Socketable | Omron Automation and Safety |
| 5 | SR4M4021 | RELAY SAFETY 4PST 8A 21VSafety Relay 4PST-NO/NC (3 From A, 1 Form B) 21VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 6 | KHAU-17D11-12 | RELAY GEN PURPOSE 4PDT 3A 12VGeneral Purpose Relay 4PDT (4 Form C) 12VDC Coil Socketable | TE Connectivity Potter & Brumfield Relays |
| 7 | 70-IDC15NP | INPUT MODULE AC/DC 18MA 15VDCAC/DC Input Module Output Module 10mA 15VDC Output 15 ~ 32VAC, 10 ~ 32VDC Supply | Grayhill Inc. |
| 8 | 1462051-2 | HF353=50OHM140MW 5V MONO | TE Connectivity Potter & Brumfield Relays |
| 9 | ARE13A4HZ | RELAY RF SPDT 500MA 4.5V | Panasonic Electric Works |