Tridonic PCA 1x21-39 T5 Digital Ballast Dimmable DALI

Tridonic PCA 1x21-39 T5 Digital Ballast Dimmable DALI is an advanced digital dimmable electronic ballast by Tridonic, engineered for precise control of T5 fluorescent lamps with a compatible power rating of 1x28W / 54W. Built in steel with compact dimensions of 360 x 30 x 21 mm, this ballast delivers a sophisticated solution for professional lighting systems requiring fine-tuned dimming and fully digital lamp management. The IP20 protection rating makes it suitable for indoor protected installations, with an input voltage of 220-240 V.

This ballast stands out as the world's first processor-controlled ballast featuring integrated XTIC technology, placing it at the forefront of advanced lighting control systems. The DALI (Digital Addressable Lighting Interface) protocol and switchDIM compatibility enable disturbance-free, precise control with a continuous dimming range from 1% to 100%. Automatic lamp detection ensures operation with the correct lamp parameters at all times, while the SMART Heating Concept provides optimum filament heating at any dimming level, with electrode cut-off at approximately 90% dimming level for maximum energy efficiency. Lamp-friendly warm start is achieved within 0.5 s on AC and 0.2 s on DC, with a standby power consumption below 0.5 W. An average service life of 50,000 hours (with a failure rate of 0.2% per 1,000 operating hours) and an operating frequency between 40 and 100 kHz round out the technical profile of this device. The system also integrates Intelligent Voltage Guard protection against overvoltage and undervoltage, overtemperature protection, DALI memory, and an adjustable emergency light value between 1% and 100%, automatically triggered by DC or rectified AC voltage. Extensive diagnostic functions and OEM-specific reserved memory for custom configuration make this ballast an ideal choice for high-end technical lighting installations, including emergency lighting systems compliant with EN 50172. The product is certified to EN 55015, EN 55022, EN 60929, EN 61000-3-2, EN 61347-2-3 and EN 61547.