Energy Saving Switch


IINA provides a complete range of efficient, cost-effective power supply units housed in robust painted steel enclosures. These power supply controllers will convert 220VAC/50Hz into 12V DC continuous power source. With 3A or 5A fuse protected outputs, these products can be used for general-purpose needs in an access control system.

PS901B and PS902B feature backup battery charging facility giving you piece of mind that a continuous power source will always be available in case of power failure.

Whether you are looking for a product for powering a small standalone device and a single lock or a multi-door controller with locks, you will be able to select a supply that is exactly matched to your particular application.


  • High-quality linear regulator design
  • The high stability and low noise characteristics of our power supply units make them ideal for use
  • Robust enclosure
  • Each power supply unit is fitted in a rugged steel vented enclosure with a detachable hinged lid for easy access
  • Automatic Protection
  • These power supply units have protection from short circuit or overload and will automatically operate in a fail-safe mode.
  • Selectable Uninterrupted Power Supply
  • PS901B and PS902B with battery connection will automatically switch to backup battery if AC power fails. (Note 12V/7Ah sealed lead acid batteries are not included, please purchase it additionally)

Technical Details

Model PS901 PS901B PS902 PS902B
Input Voltage AC 220V 50Hz AC 220V 50Hz AC 220V 50Hz AC 220V 50Hz
Output Voltage DC 12V DC 12V DC 12V DC 12V
Momentary Current 3A 3A 5A 5A
Persistent Current 1.2A 1.2A 2A 2A
Timer 0-15S 0-15S 0-15S 0-15S
Output Contact Access control, Electric Lock, Request-to-exit
Battery Leads N/A Yes N/A Yes
Operating Temperature -20℃—60℃ -20℃—60℃ -20℃—60℃ -20℃—60℃
Operating Humility ≤90% ≤90% ≤90% ≤90%
Dimension 180*78*66mm 212*168*71mm 180*78*66mm 212*168*71mm
Boxed Weight 1.12KG 1.6KG 1.5KG 2KG


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