SELV or not SELV?

Standing for "Safety Extra Low Voltage", SELV describes low voltages with safe isolation, e.g. with an isolation transformer. SELV ensures an enhanced degree of protection against electric shock. The basic requirements are defined in basic safety standard IEC 61140 "Protection against electric shock – Common aspects for installation and equipment", which, as a European standard, also has the status of a German standard (EN 61140). This standard is applicable with regard to affording protection against electric shock to humans and livestock. The standard intends to lay down principles and requirements that jointly apply to electrical appliances, systems and control gears or that are required for their coordination. The standard applies to equipment, systems and control gears without voltage limitation. The requirements of the standard only apply if they have been integrated into other standards or if reference is made to these requirements in such standards. The standard is not designed to act as an independent standard. SELV devices feature special insulation to parts conducting mains voltage, which are designed as safe isolation. The permissible magnitude of SELV voltages that carry a risk of accidental contact is specified in the respective applications. Should these maximum voltages be exceeded, protection against direct contact is required. In principle, it can be said that SELV devices are more technically sophisticated than non-SELV devices. But they also provide optimum protection.

Our partner from the USA has been developing and producing high-quality semiconductor for about 30 years. CREE has been our partner for an extensive range of LEDs since 2004. The product range includes a wide range of high brightness, high power LEDs offered in SMD as well as THT and COB technology.

Your contact: Olaf Naumann

Phone +49 (0)2842 980-211
Olaf.Naumann@vossloh-schwabe.com

Nichia from Japan, the inventor of the white LEDs, has been one of the partners of VS since 1995. The product range includes a comprehensive range of high brightness and high power LEDs, as well as a UV LED product range covering all power classes.

Your contact: Ulf Hilsenberg

Phone +49 2842 980-213
Ulf.Hilsenberg@vossloh-schwabe.com

To complement our LED range, we offer secondary optics and reflectors from our partners Carclo (www.carclo.com) and LEDiL (www.ledil.com). The product range includes a large selection of optics, optic holders and reflectors made of PMMA and silicone. We specifically stock up on a wide range of products to match the LEDs from CREE and Nichia we offer.




We develop and produce a variety of LED optics for shop, office, hall and street lighting for you. Optics are available in various designs (round, square, linear) made of high-quality materials (PMMA, silicone) and with any beam angles (narrow/wide, asymmetrical or combined).

Our partner from the USA has been developing and producing high-quality semiconductor for about 30 years. CREE has been our partner for an extensive range of LEDs since 2004. The product range includes a wide range of high brightness, high power LEDs offered in SMD as well as THT and COB technology.

Your contact: Olaf Naumann

Phone +49 (0)2842 980-211
Olaf.Naumann@vossloh-schwabe.com


Nichia from Japan, the inventor of the white LEDs, has been one of the partners of VS since 1995. The product range includes a comprehensive range of high brightness and high power LEDs, as well as a UV LED product range covering all power classes.

Your contact: Ulf Hilsenberg

Phone +49 2842 980-213
Ulf.Hilsenberg@vossloh-schwabe.com