Find right cable for PCB led bars connectors (Zhaga stanard)

Dear Folks, hi!

Please help me finding the right cable for the following PCB led bars (lumistrips - ledrise aka lumitronix ones).
As will be clear from our request, we are by no means professionals or accustomed to such operations. So, we thank you in advance for your patient attention!

SKU: 38562

Electrical data (at TJ = 65°C, ± 10%) (reference settings
Operating mode Constant voltage
Voltage (V) 24 V
Current (mA) 240 mA | 280 mA | 140 mA
Power (W) 5.7 W | 6.7 W | 3.36 W 12 - 23 W/m
Dimmable Yes

For Full Specs see the available PDF in the page

SKU: 38857

Electrical data (at TJ = 65°C, ± 10%) (reference settings)
Operating mode Constant current
Voltage (V) 16.3 V
Current (mA) 720 mA
Power (W) 11.8 W 22 W/m
Standby power consumption (W) 0 W
Dimmable Yes

For Full Specs see the available PDF in the page

“The professional LumiBar strip is connected via a solderless connection to the connection inputs provided for this purpose. The form factor and connection is Designed according to the Zhaga standard (Book 7 L28W2).
The wire insulation has to be removed at the connection point. Recommend wire cross-section of inner conductor: 2 x 0.75 mm² (AWG 18).”

===

After an initial failed attempt using cables of the correct gauge (18AWG) but made of many very fine strands, we concluded that for our purposes we need a relatively rigid cable—likely a solid core or a conductor strand composed of only a few wires—to allow enough force for insertion into the connectors. We are currently leaning more towards the solid type and would like to evaluate if 20AWG might be a suitable alternative to the recommended 18AWG.

What we find here on DigiKey (remember the incipit, we came from the caves and this World looks unbelively too wired to us!):

1175-10981-18-1-2000-002-1-TD-DS-ND
10981-18-1-2000-002-1-TD
CNC Tech
WIRE 18AWG WHITE SOLID FEET

1175-10981-20-1-2000-002-1-TD-DS-ND
10981-20-1-2000-002-1-TD
CNC Tech
WIRE 20AWG WHITE SOLID FEET

or, in alternative to the above

422001WH005-ND
422001 WH005
Alpha Wire
HOOK-UP SOLID 20AWG WHT 100’

others

1856WH001-ND
1856 WH001
Alpha Wire
HOOK-UP STRND 20AWG WHITE 1000’

The cables we tested were also too soft to hold a fixed position and a bit too thick (about 1.82 mm in diameter). The wiring space is limited, so we need the thinnest possible cable without sacrificing of course the electric requirements of the LED bars.

Finally, we would like to understand, in order to ensure a good retention of the connector on the inserted cable, as well as optimal electrical transmission, if it would be appropriate to perform that ‘engrave’ seen in the photo above, or if another type of crushing of the end is recommended. Could you please advise? Many thanks for your kind attention. Attached are a couple of photos to clarify the situation.

Paolo and Francesco


Hello,
Welcome to the DigiKey TechForum. I would stick with the recommended 18awg wire in the solid strand. Part1175-10981-18-1-2000-002-1-TD-DS-ND looks to be a good option which has a white insulation jacket. You can also look at parts 1175-10981-18-1-2000-004-1-TD-DS-ND and 1175-10981-18-1-2000-001-1-TD-DS-ND if you need red or black. I see from the photo there is a notch in the wire to help with retention and if you can I would engrave that on the wire.

Hello Sir Steve, thank you very much for the advice.

Could you please tell me which instrument I should use to create that engraving on the wire? Thank you!

White insulation is meant to reflect light and not affect the light color. The black one should be another good option; I’ll think about it.

Thank you very much, best regards Sir Steve!

Whatever you may have available, a small hand tool like 2017-1016-ND , a small file, a wire cutter with just enough pressure to make the indentation.

Thank you very much Sir Steve for your kind suggestions. I have literally hundreds of wires to cut and possibily to engrave, I should need something fast… what about try engraving with a simple wire-stripper (kinda 1742-1280-ND) using the 20-22 AWG holes on the 18 AWG? Is it a “stupid idea”?

Thank you very much Sir, best regards
Paolo

Seems like that could be an option that will work. The only way to know is to start experimenting with options to see which works best for you.