| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | PT78704 | SOCKET RELAY 4P DIN RAIL PT SERRelay Socket DIN Rail | TE Connectivity Potter & Brumfield Relays |
| 3 | RSL116091 | EXTENDED HEIGHT, 2 POLE/10 AMP,Relay | Amphenol Pcd |
| 4 | 282435-5 | RELAY HSG.W.SEC.LOCK.ASSY9 POSRelay | TE Connectivity AMP Connectors |
| 5 | KUHP-11A51-240 | RELAY GEN PURPOSE DPDT 20A 240VGeneral Purpose Relay DPDT (2 Form C) 240VAC Coil Chassis Mount | TE Connectivity Potter & Brumfield Relays |
| 6 | JVN1A-4.5V-F | RELAY GEN PURPOSE SPST 16A 4.5VGeneral Purpose Relay SPST-NO (1 Form A) 4.5VDC Coil Through Hole | Panasonic Electric Works |
| 7 | P7TF-OS16 DC24V | RELAY BLOCK 16POS NPN OUT 24VDCI/O Module Rack 16 Channel | Omron Automation and Safety |
| 8 | G5LE-1A4 DC12 | RELAY GEN PURPOSE SPST 10A 12VGeneral Purpose Relay SPST-NO (1 Form A) 12VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 9 | DR2260A30V | RELAY SSR 600V 30A DIN RAIL | Sensata-Crydom |