Power Supplies
Reliable power supplies for security systems, including lithium battery UPS options for access control, CCTV and alarm applications.
Teracom Solutions free tools
Access Control Power Supply Calculator
Add up the current your readers, locks and controllers draw and size the power supply with headroom.
Access Control Power Supply Calculator
Add up the current your readers, locks and controllers draw and size the power supply with headroom.
Devices
Results
Total load: 1.60 A
Required rating with headroom: 1.92 A
Suggested power supply: 2.0 A
The starting values are examples only -- use the current draw from each device datasheet (locks at their holding current). The total load is also the standby/alarm current for the Battery Standby Calculator.
How it works
Total load is each device's current x quantity. The required rating adds your headroom, and the suggestion is the next common power supply size up. Use the total load in the Battery Standby Calculator to size the backup battery.
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Access Control
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