| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-RTU | REMOTE TERMINAL UNIT RTU | Digi International |
| 2 | HFW1201K45M | RELAY GEN PURPOSE DPDT 2A 26.5VGeneral Purpose Relay DPDT (2 Form C) Through Hole | TE Connectivity Aerospace, Defense and Marine |
| 3 | G6A-274P-ST40-US-DC48 | RELAY GEN PURPOSE DPDT 2A 48VGeneral Purpose Relay DPDT (2 Form C) Through Hole | Omron Electronics Inc-EMC Div |
| 4 | TX2-L-3V | RELAY TELECOM DPDT 2A 3VTelecom Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 5 | D3202 | RELAY TELECOM DPDT 2A 12VTelecom Relay DPDT (2 Form C) Through Hole | TE Connectivity Potter & Brumfield Relays |
| 6 | HC4-SFD-K | SOCKET SCRW W/CLIP DIN HC4 RELAYRelay Socket DIN Rail | Panasonic Electric Works |
| 7 | 18836 | RELAY SOCKETRelay | Curtis Industries |
| 8 | 2900449 | TERM BLOCKRelay | Phoenix Contact |
| 9 | NC2D-DC12V | RELAY GEN PURPOSE DPDT 5A 12VGeneral Purpose Relay DPDT (2 Form C) 12VDC Coil Socketable | Panasonic Electric Works |