TCI MW 70 Dimmable TRAILING EDGE 12 V electronic transformer

The TCI MW 70 is a dimmable 12V AC electronic transformer designed for professional lighting installations with halogen lamps up to 70W and LED lamps up to 50W. Manufactured by TCI, a leading brand in lighting power supplies, this transformer stands out for its ultra-compact dimensions and compatibility with IGBT trailing edge dimmers.

Its versatility makes the TCI MW 70 the ideal solution for residential and commercial lighting systems requiring smooth dimming control and outstanding reliability in confined installation spaces.

Main technical features

The transformer operates with an input voltage of 220-240V and delivers a 12V AC output at a maximum power of 70W. Its exceptionally compact footprint — 107 x 34 x 21 mm — makes it easy to install inside false ceilings and technical recesses. Input and output terminal blocks are located on the same side, accepting wire cross-sections from 0.5 to 2.5 mm², while the cable clamp on both primary and secondary circuits accommodates cables with a diameter between 3 and 6 mm. The housing is made of white PVC, secured via screw slots and supplied complete with a terminal cover and cable retainer.

Safety and protections

The TCI MW 70 meets Insulation Class II standards, providing protection against direct and indirect electrical contact without requiring earthing. The IP20 protection rating makes it suitable for dry indoor installations. Built-in protections include thermal and short-circuit protection, protection against mains voltage spikes, and protection against overloads.

Applications

The TCI MW 70 transformer is ideal for powering 12V track lighting systems, halogen and LED downlights, and suspension luminaires in residential, retail, and contract environments where light intensity control is required.