| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | 2900961 | RIF-4-BPT/3X21Relay | Phoenix Contact |
| 2 | G5RL-1A-E-TV8 DC24 | RELAY GEN PURPOSE SPST 16A 24VGeneral Purpose Relay SPST-NO (1 Form A) 24VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 3 | 70MRCK24-EC | I/O MOUNTING BOARD MINI 24POSI/O Module Rack 24 Channel | Grayhill Inc. |
| 4 | 9814-05-00 | RELAY RF SPST 250MA 5V | Coto Technology |
| 5 | 9290-12-00 | RELAY RF SPST 500MA 12V | Coto Technology |
| 6 | 70-IDC5NP | INPUT MODULE AC/DC 18MA 5VDCAC/DC Input Module Output Module 10mA 5VDC Output 15 ~ 32VAC, 10 ~ 32VDC Supply | Grayhill Inc. |
| 7 | 2905983 | BRACKET RETAININGClip, Hold Down RIF-4 Relay Base | Phoenix Contact |
| 8 | ARA220A03 | RELAY RF DPDT 1A 3V | Panasonic Electric Works |
| 9 | G6W-1P DC4.5 | RELAY RF SPDT 10MA 4.5V | Omron Electronics Inc-EMC Div |