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eldoLED *274A1N OPTOTRONIC 55W Constant Current 0-10V Dimmable LED Driver, Programmable Compact OTi55W/120-277/2A0/DIM-1/J (Osram 57356)
eldoLED *274A1N OPTOTRONIC 55W Constant Current 0-10V Dimmable LED Driver, Programmable Compact OTi55W/120-277/2A0/DIM-1/J (Osram 57356)
eldoLED *274A1N OPTOTRONIC 55W Constant Current 0-10V Dimmable LED Driver, Programmable Compact OTi55W/120-277/2A0/DIM-1/J (Osram 57356)
eldoLED *274A1N OPTOTRONIC 55W Constant Current 0-10V Dimmable LED Driver, Programmable Compact OTi55W/120-277/2A0/DIM-1/J (Osram 57356)
eldoLED *274A1N OPTOTRONIC 55W Constant Current 0-10V Dimmable LED Driver, Programmable Compact OTi55W/120-277/2A0/DIM-1/J (Osram 57356)
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eldoLED *274A1N OPTOTRONIC 55W Constant Current 0-10V Dimmable LED Driver, Programmable Compact OTi55W/120-277/2A0/DIM-1/J (Osram 57356)

*274A1N (57356)
Vendor
eldoLED (OSRAM)
Regular price
$58.00
Sale price
$58.00
Regular price
$70.00
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Stock: 10

OPTOTRONIC 55W Programmable Compact LED Driver

The OPTOTRONIC Compact Drivers have several architectural-grade features that offer functionality that supports architectural lighting design. OPTOTRONIC LED drivers support true 1% dimming across the entire driver programmable output current range. This key specification gives lighting designers the flexibility and precise light output they require. The synchronized ON/OFF timing and dimming control meet efficacy requirements and ensure consistent dimming levels across multiple luminaires. The DIM-to-OFF feature enables luminaires to smoothly transition from dim to off. And, offers an AUX power output option to power and extend DIM-to-OFF capability to fixture-integrated sensors and controls.

OEMs can fully customize programmable features into a driver which helps optimize production line efficiency by utilizing the one-click programming feature of the OPTOTRONIC Programmer. The OPTOTRONIC Programmer does not require the power supply to be powered up or connected to AC line voltage while programming.

Product Features

  • Type:  Constant Current
  • Output Power:  55W
  • Input Voltage:  120-277V AC
  • Output Voltage:  10-55V DC
  • Output current:  700-2000mA
  • Form Factor:  J-style
  • Frequency Range:  50–60Hz
  • Dimming Level:  1%
  • Dimming Control:  0–10V (Isolated)
  • Dimming Range:  1-100%
  • Dimming Type:  Current Reduction
  • Maximum Case Temperature (Tc point):  90ºC Max / 75 ºC (50kHrs)¹
  • Ambient Operating Temperature:  -30ºC to 45ºC
  • Maximum Storage Temperature:  75ºC
  • Max. Relative Humidity:  85% non-condensing
  • IP Rating:  IP20
  • Dimensions (L x W x H):  4.3” (109mm) x 2.4” (61.1mm) x 1.2” (27.5mm)
  • Weight:  9.1oz
  • Warranty: 5 Years

Applications

  • Architectural
  • Downlights
  • In-grade fixtures
  • Recessed troffer
  • Wall washing

Key Application Notes

  • Dim-to-off and Soft Start are programmable (enable/disable) features. The default mode for both features is disabled for out-of-the-box products. If these features are required, they must be enabled in the programming software.
  • If LED Thermal Protection feature is used, an NTC thermistor must be connected to the driver.

Key Features & Benefits

  • All OPTOTRONIC Programmable LED Drivers are factory programmed to a default level that can be adjusted to the desired settings.
  • The current foldback accuracy is within +/-5% of the expected value. This value would also depend on the tolerance of the NTC component.
  • Each driver in a luminaire requires a dedicated NTC device. Connecting a single NTC to multiple drivers can lead to inconsistent dimming and strobing effects.
  • For UL SREC-certified drivers, Fixture Thermal Protection is turned OFF by default.
  • To ensure that the protection is only triggered when there is a constant abnormality, there is a time delay of 1 min incorporated in the firmware. If the change in resistance of the NTC is persistent for this time, the driver confirms the abnormal and enters the protection mode
  • Due to the above, this feature cannot be used to set the output current on the driver's using a potentiometer. In select LED drivers, designers can take advantage of the LEDset functionality. To learn more about this, please refer to the web resource.

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