Mechanical design

The following table describes the mechanical design of the cable:

		HELUKABEL^® Li9Y11-HF 28118707	HELUKABEL^® Li9Y11-HF 28118715	HELUKABEL^® Li9YYö 28118723	HELUKABEL^® Li9YYö 28118731
Mechanical design
[1]	Cores	4 × 2.5 mm²	4 × 4.0 mm²	4 × 2.5 mm²	4 × 4.0 mm²
	Conductor	Blank copper Class 6 to DIN EN 60228		Blank copper Class 5 to DIN EN 60228
	Insulation	Polypropylene, 0.55 mm	Polypropylene, 0.6 mm	Polypropylene, 0.5 mm	Polypropylene, 0.6 mm
	Colors	Yellow/green, brown, black, gray
[2]	Cores	4x 0.34 mm², twisted
	Conductor	Tinned copper, 7 wires
	Insulation	Polyolefin, 0.4 mm
	Shielding	Plastic laminated aluminum foil (metal side outside) Braided tinned Cu, conductive fleece, Optical coverage at least 85%
	Colors	White, yellow, blue, orange
	Diameter	Approx. 5.4 mm
[3]	Cores	2x 2.5 mm², twisted With filling elements		2x 2.5 mm², twisted With filling elements
	Conductor	Blank copper Class 6 to DIN EN 60228		Blank copper Class 5 to DIN EN 60228
	Insulation	Polypropylene, 0.55 mm		Polypropylene, 0.5 mm
	Shielding	Braided tinned Cu, polyester film, Optical coverage at least 85%
	Colors	Blue, brown
	Diameter	Approx. 6.8 mm
[4]	Filler	-
[5]	Outer cable jacket	TPU Wall thickness 1.5 mm		PVC Wall thickness 1.5 mm
	Color	Orange, similar to RAL2003
	Label	SEW EURODRIVE 28118707 Li9Y11Y-HF ..	SEW EURODRIVE 28118715 Li9Y11Y-HF ..	SEW EURODRIVE 28118723 Li9YY ..	SEW EURODRIVE 28118731 Li9YY ..
	Diameter	15.5 mm ±0.4 mm	17.0 mm ±0.4 mm	15.3 mm ±0.3 mm	16.8 mm ±0.3 mm