Access Control Power Supply
The 621B Value series 1-amp access control power supply incorporates two field-selectable 12/24 volt DC power limited outputs, including one switched output and one auxiliary output. Control inputs include one trigger input and one supervised emergency release input with selectable non-latching or latching with reset capability. Other features include a battery charger and AC input, DC output and battery status LED indicator. The SDC 621B Value series power supply is suitable for power and battery backup of electric locking devices and access controls, including applications requiring fire emergency release.