The ARC 121 uses one 24–57 VDC power input to supply all 12 lighting channels.
This configuration is designed for areas where all connected lighting loads operate from one normal power source.
| Technical Specifications | |
|---|---|
| Specification Item | Parameter / Detail |
| Input voltage | 24–57 VDC |
| Outputs | 12 independently configurable constant-current, constant-voltage or constant-power channels |
| Output voltage range | Programmable 12–55 VDC |
| Output current range | Programmable up to 4 A in 100 mA increments |
| LED output current tolerance | ±1% |
| Maximum output per channel | 100 W (VA) |
| Total output power | 1,200 W |
| Dimming | 16-bit control with 0.01% dim-to-dark capability |
| Network and API | 10/100 Ethernet, SmartDC control and RESTful API |
| Protection | Automatic-resetting overload and short-circuit protection |
| Operating environment | 0–45°C and 0–95% relative humidity, non-condensing (Dry locations) |
| Installation | Standard 1U rack opening or wall mountable with removable mounting brackets |
| Device classification | Class 2, Class B device |
| Certifications | ETL Listed to UL 2108, UL 1310, UL 8750 and CSA C22 CE |