LED driver | Tridonic LC 20W 200-350mA 67V flexCC lp SNC4

Professional Tridonic LC 20W LED Driver (Essence Series)

This high-quality constant current led driver (LC 20W 200-350mA flexCC lp SNC4) belongs to the robust essence series. It is designed specifically for luminaire installation in Class I light fixtures. This driver is an excellent premium component for various applications. These include spotlights, downlights, linear oprawas, and high bay lighting. The maximum output power of the unit is 20.3 W. The driver operates within a nominal supply voltage range of 220–240 V AC. This device offers remarkable typical efficiency of 85% at full load. Its nominal lifetime reaches up to 50,000 hours, supported by a 5-year guarantee from the manufacturer. The driver conforms to essential electrical standards, including EN 55015 and EN 61347-2-13. The compact metal casing (210 x 30 x 21 mm) provides IP20 protection. The maximum output voltage (U-OUT) is 250 V. The ripple current is minimal, maintaining output LF current ripple below ± 5%. (143 words)

Output Current Selection in the LED Driver

The flexible constant current (flexCC) feature allows for the selection of the output current. The current can be set using the integrated DIP switch. This provides flexibility in matching the driver to various LED modules.

Available fixed output current values:

• 200 mA (Switch 1=Off, Switch 2=Off)
• 250 mA (Switch 1=On, Switch 2=Off)
• 300 mA (Switch 1=Off, Switch 2=On)
• 350 mA (Switch 1=On, Switch 2=On, pre-selected)

Crucial Technical Note: The output current setting must only be changed after turning off the mains supply. Output current tolerance is specified at ± 7.5%. (92 words)

Integrated Safety and Protection Features

Safety is paramount, and the led driver is equipped with several automatic protection mechanisms.

• Short-Circuit Protection: In the event of a short circuit on the output side, the driver automatically switches off. Normal operation automatically recovers once the short-circuit fault is removed.
• Overload Protection: If the defined internal load limit is exceeded, the driver protects itself. This protection mechanism may cause the LEDs to flicker. Nominal operation resumes automatically upon elimination of the overload.
• No-Load Protection: This feature ensures safe operation when the LED string is disconnected or open. The driver switches to a burst working mode to maintain constant output voltage regulation.
• Temperature Protection: The unit includes temperature protection complying with EN 61347-2-13 C5e.

FAQ

Q: Is hot plug-in of LED modules allowed?

A: No. Hot plug-in or output switching of LEDs is not permitted as it may cause a very high current.

Q: What wire types should be used for wiring?

A: Use solid wire or stranded wire with ferrules, cross-section 0.5–1.5 mm².

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