KF520 Window profile

The new KF520 combines innovative design with technical know-how. The window sash is not visible from outside due to its glass appearance and can optically not be distinguished from fixed glazing. This sash also contains the revolutionary locking I-tec Secure which renders levering of the window impossible - unrivalled in the branch. Integrated flaps press on all sides into the frame interior when locking and thus ensure maximum burglary protection.

PROPERTIES

Thermal insulation(in W/m²K)

U_w as low as 0.63

Sound reduction (in dB)

Up to 46dB

Security

Up to RC2, RC3

Locking

Fully Integrated

Construction depth (in mm)

93mm

Test Certificate Available

GLAZING SYSTEMS

The thermal insulation of a window depends on the frame material, the glazing and the impermeability. The parameter is the U value – the lower the figure, the better the thermal insulation.

The soundproofing of a window depends on the frame material, the glazing and the joint permeability. The parameter is the dB value – the tighter a window closes, the better the insulation performance.

U_w =	Thermal insulation of the window acc. to EN 10077-1 (calculated) or acc. to EN 12567-1 (tested) (is stated in watts per square metre kelvin = W/m2K); the following tables state this value per Internorm window system – with stainless alu or ISO spafers respectively
U_g =	Thermal insulation of the respective glazing
R_w =	Soundproofing of the window acc. to DIN EN 20140-3 (stated in decibel = dB)

Studio

Triple Glazing

KF 520

Glass	Glass code		U _g/R _w	g %	ALU	ISO
4b/18Ar/4/18Ar/b4	3N2	ECLAZ®	0,5/33	60	0,81	0,70
6b/18Ar/4/16Ar/b4	33U	ECLAZ®	0,5/38	59	0,81	0,70
4b/16Ar/4/15Ar/b44.2(VSG-S)	34N	ECLAZ®	0,6/41	60	0,89	0,78
44b.2 (VSG-S)/15Ar/4/12Ar/b44.2(VSG-S)	3FH	ECLAZ®	0,6/46	55	0,89	0,78

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