| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275EU | MTRAK M275 EVENT UNIT | Digi International |
| 2 | 2271235 | PLUG-IN BASE RELAY PIN PLATERelay | Phoenix Contact |
| 3 | PY11-0 | SOCKET PCB FOR MY3Relay Socket Through Hole | Omron Automation and Safety |
| 4 | 4-1415033-1 | SOCKET FOR PT5 MINI RELAYSRelay Socket DIN Rail | TE Connectivity Potter & Brumfield Relays |
| 5 | NC4D-JP-DC5V | RELAY GENERAL PURPOSE 4PDT 5A 5VGeneral Purpose Relay 4PDT (4 Form C) 5VDC Coil Through Hole | Panasonic Electric Works |
| 6 | ALA2F05 | RELAY GENERAL PURPOSE DPST 3A 5VGeneral Purpose Relay DPST-NO (2 Form A) 5VDC Coil Through Hole | Panasonic Electric Works |
| 7 | 2973067 | CONN TERM BLOCKI/O Module Rack Channel | Phoenix Contact |
| 8 | G6KU-2F-RF DC4.5 | RELAY RF DPDT 1A 4.5V | Omron Electronics Inc-EMC Div |
| 9 | 423420 | HARDWARE KIT | Sensata-Crydom |