Cable Calculator

General Notes:

  • Multiple 24V DC fixtures can be connected to a single driver in parallel only.
  • The total connected load of a circuit should not exceed the maximum driver load rating.
  • We recommend running drivers at 80% of their maximum load rating to ensure heat and output performance are maximized.
  • The required DC cable size should be calculated based on the connected load, cable length, voltage and allowable voltage drop percentage.
  • Maximum Amp rating of the selected cable should be considered based total connected load.
  • We recommend using a twin Sheath Automotive cable with a high strand count where applicable.
  • We do NOT recommend using figure-8 cable or speaker cable.
  • Please note that industry standard sizes/names do not match actual cable cross section area (CSA) measured in mm². Special care should be applied to ensure the correct cable size is selected.
  • Please note that all the provided information by Tovo on this page is purely for guidance. All technical requirements for each installation/project should be carried out by a licensed Electrician/Electrical Engineer.

The Below table illustrates typical industry Automotive cable sizes with the corresponding cable cross section area (CSA) in mm², connected loads in Watts and their associated maximum cable lengths in meter, based on a allowable voltage drop of 5%

Wire Lengths Grid
Industry Size 2 mm 3 mm 4 mm 5 mm 6 mm 8 B&S 6 B&S
Cross-sectional area 0.56 mm² 1.13 mm² 1.84 mm² 2.9 mm² 4.59 mm² 7.71 mm² 13.5 mm²
10W32m91m151m240m378m600m1028m
20W16m45m75m120m189m300m514m
30W10m30m50m80m126m200m342m
40W8m22m37m60m94m150m257m
50W6m18m30m48m75m120m205m
60W5m15m25m40m63m100m171m
70W4m13m21m34m54m85m146m
80W4m11m18m30m47m75m128m
90W3m10m16m26m42m66m114m
100W3m9m15m24m37m60m102m
110W2m8m13m21m34m54m93m
120W2m7m12m20m31m50m85m
130W2m7m11m18m29m46m79m
140W2m6m10m17m27m42m73m
150W2m6m10m16m25m40m68m
160W2m5m9m15m23m37m64m
170W1m5m8m14m22m35m60m
180W1m5m8m13m21m33m57m
190W1m4m7m12m19m31m54m
200W4m7m12m18m30m51m

The Below table illustrates typical Instrumentation cable sizes in mm², connected loads in Watts and their associated maximum cable lengths in meter, based on a allowable voltage drop of 5%

Wire Lengths Grid
Cross-sectional area 0.5 mm² 0.75 mm² 1 mm² 1.5 mm² 2.5 mm² 4 mm² 6 mm² 10 mm²
10W36m55m73m108m180m290m436m753m
20W18m27m36m54m90m145m218m376m
30W12m18m24m36m60m96m145m251m
40W9m13m18m27m45m72m109m188m
50W7m11m14m21m36m58m87m150m
60W6m9m12m18m30m48m72m125m
70W5m7m10m15m25m41m62m107m
80W4m6m9m13m22m36m54m94m
90W4m6m8m12m20m32m48m83m
100W3m5m7m10m18m29m43m75m
110W3m5m6m9m16m26m39m68m
120W3m4m6m9m15m24m36m62m
130W2m4m5m8m13m22m33m57m
140W2m3m5m7m12m20m31m53m
150W2m3m4m7m12m19m29m50m
160W2m3m4m6m11m18m27m47m
170W2m3m4m6m10m17m25m44m
180W2m3m4m6m10m16m24m41m
190W1m2m3m5m9m15m22m39m
200W2m3m5m9m14m21m37m
TOVO Cable Calculator

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