Low Voltage Practice
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*Please keep in mind that these tools are for references only. You shall always check National and Local code for minimum requirements.*
Wire Gauge Calculator
System Type:
Fire Alarm
Burglary Alarm
CCTV IP
CCTV Analog
Access Control
Intercom
Custom/Other
Estimated Run Length (feet):
System Voltage (V):
Devices on Each Run:
Device Current Draw (Amps):
Power Supply Max Output (Amps):
Calculate
* Per NEC/NFPA, minimum wire gauge for fire alarm is 18 AWG. All systems should keep voltage drop under 10% and not exceed ampacity.