12V Electronic Transformer


Electronic Transformers ^{by Display Lighting Ltd}

12V "YT Dimmable" Electronic Transformers
YT transformers feature "Soft start" which gently brings the lamps up to full brightness when you switch on, this feature will also extend the lamp life. Trouble free dimming" using VARILIGHT intelligent dimmers for low voltage lighting (including touch and touch/remote versions) which are specifically designed for low voltage lighting as well as normal mains lighting. Up to 10 DISPLAY LIGHTING YT Transformers may be used per VARILIGHT intelligent dimmer as long as the total load does not exceed the maximum rating of the transformer. To calculate the total load for dimming, add the wattages of all the lamps you intend to dim and choose a dimmer to suit.
YT050		YT070

Input Voltage Input Current Power Range Output Voltage Power Factor Ambient Temperature Range Insulation Class Quantity of Input Terminals Quantity of Output Terminals Weight Dimensions	230V a.c. +/- 10% ; 50Hz 0.A for 50W 50Va: 0 - 50W 11.5V Max. 4.3A > 0.99 0 - 40ºC II 1 (Pre Wired) 1 (Pre Wired) 100g L 73mm x W 36mm x H 25.5mm	Input Voltage Input Current Power Range Output Voltage Power Factor Ambient Temperature Range Insulation Class Quantity of Input Terminals Quantity of Output Terminals Weight Dimensions	230V a.c. +/- 10% ; 50Hz 0.33A for 70W 70Va: 0 - 70W 11.5V Max. 6.5A > 0.99 0 - 40ºC II 1 1 (Pre Wired) 120g L 118mm x W 36.5mm x H 29.5mm

YT105		YT150

Input Voltage Input Current Power Range Output Voltage Power Factor Ambient Temperature Range Insulation Class Quantity of Input Terminals Quantity of Output Terminals Weight Dimensions	230V a.c. +/- 10% ; 50Hz 0.46A for 105W 105Va: 0 - 105W 11.5V Max. 9.3A > 0.99 0 - 40ºC II 1 2 140g L 118mm x W 37mm x H 30mm	Input Voltage Input Current Power Range Output Voltage Power Factor Ambient Temperature Range Insulation Class Quantity of Input Terminals Quantity of Output Terminals Weight Dimensions	230V a.c. +/- 10% ; 50Hz 0.65A for 150W 150Va: 0 - 150W 11.5V Max. 12.5A > 0.99 0 - 40ºC II 2 3 230g L 160mm x W 53mm x H 32mm

YT250

Input Voltage Input Current Power Range Output Voltage Power Factor Ambient Temperature Range Insulation Class Quantity of Input Terminals Quantity of Output Terminals Weight Dimensions	230V a.c. +/- 10% ; 50Hz 1.1A for 250W 250Va: 0 - 250W 11.5V Max. 22A > 0.99 0 - 40ºC II 2 3 250g L 160mm x W 53mm x H 37mm

INSTALLATION ADVICE Each YT Transformer should be located in a well ventilated position. It is important that the cable lengths on the output side of the transformer are neither too short or too long (optimum length - 30cm). If the transformer is fitted too close to the luminaire (nearer than 25cm), heat from the lamp could affect the functioning of the transformer. If the cable is too long, a "voltage drop" may result and it will cause the lamp to be less bright. The longer the cable on the output side, the thicker the cable needs to be to reduce this effect.
DIMENSIONS (Diagrams are not to scale) YT70 and YT105 YT150 YT250