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

Description

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

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, Default 1000mA
• 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.

Downloadable Documentation:
Datasheet
Spec Sheet
Technical Guide

SKU# *274A1N (57356)