| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-RTU | REMOTE TERMINAL UNIT RTU | Digi International |
| 2 | 5-1462037-1 | RELAY TELECOM DPDT 2A 1.5VTelecom Relay DPDT (2 Form C) Surface Mount | TE Connectivity Potter & Brumfield Relays |
| 3 | RSE116701 | LOW PROFILE, 2 POLE/10 AMP, WCRelay | Amphenol Pcd |
| 4 | 2900961 | RIF-4-BPT/3X21Relay | Phoenix Contact |
| 5 | 2961341 | RELAY GEN PURPOSE SPST 16A 24VGeneral Purpose Relay SPST-NO (1 Form A) 24VDC Coil Through Hole | Phoenix Contact |
| 6 | 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 |
| 7 | 6-1415355-1 | RELAY GEN PURPRelay Coil | TE Connectivity Potter & Brumfield Relays |
| 8 | G6B-2114P-1-US DC24 | RELAY GEN PURPOSE DPST 5A 24VGeneral Purpose Relay DPST-NO/NC (1 Form A, 1 From B) 24VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 9 | 70GRCQ24-HS | I/O MOUNTING BOARD G5 24POSI/O Module Rack 24 Channel | Grayhill Inc. |