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In principle, operation of low-voltage halogen lamps, which are universally popular for accent lighting, requires a transformer which adapts the mains voltage to a 12 V operating voltage. There is a choice between magnetic and electronic transformers. The latter are divided up into phase-dimmable and digitally dimmable TE one4all models. All transformers also ensure that the protective measures required by relevant standards are met, for instance in the event of a short-circuit or voltage interruption.
Magnetic transformers are a rugged, extremely affordable solution offering long service life together with excellent thermal endurance.
TridonicAtco’s diversified range of units for integration in luminaires and surface-mounted applications covers all relevant uses. The transformers guarantee operation of lamps in accordance with specifications, thereby enabling lamps to achieve their maximum luminous flux and service life.
Essentially, all TridonicAtco magnetic transformers are characterised by minimal power consumption, compact winding, optimised dimensions and high-quality materials. They are continuously controllable using phase-control dimmers for inductive loads.
Designed for long service life
Thanks to their high-quality insulating material, coil form and the quality of the copper wire used, KTR, TMDC, TMB and TMC type transformers for integration in luminaires and TMDD and OMT types for surface-mounted applications achieve a maximum service life of approximately 100,000 hours of operation, i.e. roughly ten years of continuous operation with a winding temperature of 130 ºC (cool = 130 ºC). The winding temperature is calculated from the ambient temperature and the temperature increase due to intrinsic consumption. An upward or downward change in temperature of 10 ºC causes doubling or halving of the life of the unit respectively.
The transformers can be protected on the line side either by a slow fuse or by a built-in current-sensitive thermal cutout appropriate to the transformer type. Protection on the secondary side against overloads and short-circuits trips if the lamp is faulty.
Constantly high quality
Exclusive use of high-quality materials combined with ISO 9001-certified manufacturing processes guarantee unchangingly high quality. Fully automated manufacturing also ensures a constant, reproducible quality level. In addition, all transformers undergo a 100 % final safety inspection.
Standards and test marks
TridonicAtco magnetic transformers are ENEC-certified, carry the CE Mark and meet all relevant European standards relating to safety, operation and electromagnetic compatibility.
The specialist for integrated applications
KTR magnetic transformers are characterised by especially compact dimensions (28.6 mm x 41.5 mm) and an excellent price/performance ratio. Power ratings range from 50 VA to 105 VA.
Because of their dimensions (28.6 mm x 41.5 mm), TMDC transformers are suitable for all applications where a device with a small cross-sectional area is needed, e.g. in tubetrack systems. This model is available with power ratings from 20 VA to 105 VA.
TMB transformers are compactly designed units of reduced length. The device has a cross-sectional area of 65 mm x 47 mm. Thanks to its high efficiency, the TMB model, which is available in versions from 20 VA to 300 VA, is also suitable for use at relatively high ambient temperatures.
TMC (OGT) transformers reveal their full potential in situations where several lamps are connected. Power ratings range from 250 VA to 500 VA versions.
Designed for surface-mounted applications
TMDD magnetic transformers are available as a Lovotec version and as a TMD enclosed version which are also suitable for integration or surface-mounting on furniture having unknown flammability characteristics. Thanks to their small cross-sectional area, these units are especially suitable for use in suspended ceilings.
OMT transformers are used when several lamps are connected, e.g. in the case of cord suspension or track systems. Power ratings range from 150 VA to 300 VA.
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