What is SELV driver?
Driver premium (PRE) is a future-proof generation of LED Drivers characterized by highly advanced functionality and outstanding dimming behaviour.
What does SELV stand for?
Separated Extra Low Voltage
Separated Extra Low Voltage (SELV) system is an extra low voltage electrical circuit that is electrically separated from other circuits that carry higher voltages, isolated from the earth and from the protective earth conductors of other circuits.
What is an example of SELV?
Typical examples of SELV are: Access control systems. Lighting control panels. CCTV and security systems.
Are all LED drivers SELV?
OSRAM has phased out almost all its SELV equivalent products and provides almost all constant current LED drivers in SELV versions. The only 2 products to mention are: OT 9/200-240/350 will not be modified to SELV and is phased out.
What are LED light drivers?
LED drivers (also known as LED power supplies) are similar to ballasts for fluorescent lamps or transformers for low- voltage bulbs: they provide LEDs with the electricity they require to function and perform at their best. An LED driver rectifies higher voltage, alternating current to low voltage, direct current.
What is difference between SELV and Pelv?
In contrast to a SELV circuit, a PELV circuit can have a protective earth (ground) connection. A PELV circuit, just as with SELV, requires a design that guarantees a low risk of accidental contact with a higher voltage. A typical example for a PELV circuit is a metal cased computer with a Class I power supply.
Is Pelv basic protection?
protective measure in which: basic protection is provided by basic insulation, and fault protection is provided by supplementary insulation, or both basic and fault protection are provided by reinforced insulation between live parts and accessible parts (Regulation 412.1. 1). Extra-low voltage (SELV and PELV).
What is an example of Pelv?
IEC 61140 defines a PELV system as “an electrical system in which the voltage cannot exceed ELV under normal conditions, and under single-fault conditions, except earth faults in other circuits”. A typical example for a PELV circuit is a metal cased computer with a Class I power supply.
Where is SELV and Pelv used?
SELV/PELV is frequently used for 12V halogen (or now sometimes LED) lighting – typically downlighters. Also used for doorbells, intruder alarms, some central heating controls etc.
Do I need an LED driver?
Because LEDs require a constant DC of 12v or 24v, LED drivers are required in all LED systems (except those which are specifically developed to be controlled by mains voltage power supplies such as mains voltage tape or LED bulbs).
Do I need LED driver?
Every LED light source requires a driver. Some LEDs already include an integrated driver within the bulb. LEDs designed for household use (bulbs with E26 / E27 or GU24 / GU10 bases and that run on 120V) typically already include a driver. However, low voltage LED light sources, such as some MR- bulbs (MR GU5.