Powerbox’s type ENI100-5138 power supply has a nominal input of 100 to 240VAC although it can be operated with a small derating between 90 and 264VAC. The output voltage is factory adjusted to 24VDC and delivers an output current of 4A. The output is protected against over-current and short-circuit damage by a current limitation operating in ‘Always On’ mode, guaranteeing that the unit will always return to full operation after the output fault is removed. Powerbox’s ‘Always On’ technology also adjusts the available output power while taking cognizance of the unit’s internal temperature in order to keep it in a safe operating zone.