Osram 57351 Optotronic 40W 120/277V AC 50/60Hz Constant Current Dimmable Compact LED Driver OTi 40W/120-277/1A4 DIM-1

OPTOTRONIC Programmable Compact LED Drivers

OSRAM 57351 OPTOTRONIC OTi40W/120-277/1A4 DIM-1 40W Constant Current, 0-10V Dimmable LED Driver

Product Features

Programmable Features:

Output currentDimming levelDim-to-offSoft StartLED thermal protectionVaux (12/20/24V)Constant lumen outputEnd-of-life indicator

Output current

Dimming level

Dim-to-off

Soft Start

LED thermal protection

Vaux (12/20/24V)

Constant lumen output

End-of-life indicator

Input Voltage:  120-277V (+/- 10%)

Frequency Range:  50-60 Hz (+/- 5%)

Max. Output Power (W):  40W

Dimming Control:  0-10V (Isolated)

Dimming Range:  1-100%

Output Voltage (VDC):  8-55VDC

Output Current (mA):  400-1400mA (1mA Step), Default 700mA

Product Dimensions (L x W x H):  5.0" x 2.4" x 1.2"

Product Weight:  7.8oz

Quantity:  1

UL Environmental Rating: Dry and Damp


Output current

Dimming level

Dim-to-off

Soft Start

LED thermal protection

Vaux (12/20/24V)

Constant lumen output

End-of-life indicator


Product Family Features

Universal input voltage - 120–277VAC 50/60Hz

UL Class 2 output for safe operation

Protection against line voltage on 0-10 V dimming wires

AUX output models available

Custom programmable with 1mA resolution to perfectly match LED load and maximize performance

Programming does not require powering up or connecting the power supply to AC line voltage

Wide output current and voltage range

Available in dimming to 1% with 0–10 V dimmers

Integrated OEM programmable features include: constant lumen maintenance, end-of-life indication, LED thermal protection, Vaux (12V/20V/24V), soft start, and dim-to-off

Available with mounting feet (F-style) or PEM studs (J-style) to simplify installation

Conforms UL SREC for NTC based thermal protection


Areas of Application

Downlights, In-grade fixtures, Recessed troffer, Wall Washing

• Universal input voltage - 120–277VAC 50/60Hz
• Pout = 40W, Vout = 8-55VDC, Iout = 400-1400mA
• UL Class 2 output for safe operation
• Protection against line voltage on 0-10 V dimming wires
• Custom programmable with 1mA resolution to perfectly match LED load and maximize performance