Features: - Output filtering stabilizes the DC output voltage and eliminates AC line noise - Regulator maintains output voltage at 12 or 24 VDC regardless of load changes and battery charging - Fire alarm input that provides simultaneous release of all Fail Safe/Fail Secure locks and door holders in case of an emergency - Field selectable output that provides 12 VDC or 24 VDC - Circuit breaker protected AC input voltage - secondary output is PTC protected - LED status indicators Separate PTC protected charging output