Description
ERP Power Constant Current LED Driver, 40W (33.6W) Max Power Out, Universal 120-277V Input, Fixed Output Current 800mA Max, Output Voltage 42Vdc, Tri-Mode Dimming (TRIAC, ELV & 0-10 V), Feet Mount
ERP Power ESST040W-0800-42 Constant Current LED Driver Guide
Quick Answer: The ERP Power ESST040W-0800-42 is a 33.6W max high-efficiency constant current LED driver from ERP Power's ESS/ESST family. It delivers a regulated 800mA DC output across a 30V to 42V DC forward voltage window on universal 120–277V AC line input. Featuring dual-mode dimming capabilities (TRIAC/ELV forward & reverse phase at 120V and 0–10V dimming at 120–277V down to 1%), it is housed in a thermally enhanced (ESST) plastic case with mounting studs designed exclusively for higher-power 40W models.
ERP Power ESST040W-0800-42 Overview & Key Features
The ERP Power ESST040W-0800-42 LED driver offers high power density, superior dimming compatibility, and advanced thermal management for architectural downlights, track lights, and commercial luminaires:
- TRIAC, ELV, and 0–10V Tri-Mode Dimming: Supports 120V phase-cut (TRIAC/ELV) dimming and 120–277V 0–10V analog dimming down to 1% smooth light levels.
- Regulated Constant Current Output: Supplies 800 mA constant current across an output voltage window of 30 to 42 VDC.
- Universal AC Line Input: Operates seamlessly on line voltages from 120V to 277V AC at 50/60 Hz with auto-sensing capability.
- Thermally Enhanced Plastic Enclosure (ESST): Built with a thermally enhanced plastic case and mounting studs tailored exclusively for higher-power 40W driver models.
- High Efficiency & Power Factor: Achieves high efficiency (>87%) with a high power factor (>0.9) and low Total Harmonic Distortion (THD <20%).
ERP Power ESST040W-0800-42 Technical Specifications
Core performance specifications and electrical parameters for the ERP Power ESST040W-0800-42 LED driver:
| Specification Parameter | Rating / Value | Details & Performance Standards |
|---|---|---|
| Max Output Power | 33.6 Watts | Calculated as 800 mA x 42 VDC max voltage |
| Output Current | 800 mA (0.800 A) | Constant current regulated DC output |
| Output Voltage Range | 30 – 42 VDC | DC forward voltage operating window |
| Input Voltage | 120 – 277 VAC | Universal AC line input, 50/60 Hz |
| Enclosure Construction | Thermally Enhanced Plastic (ESST) | Plastic case with studs, exclusively for 40W models |
| Dimming Compatibility | 0–10V, TRIAC, ELV | 0–10V dimming (120–277V) and Phase-Cut (120V) down to 1% |
| Power Factor / THD | > 0.90 PF / < 20% THD | High efficiency commercial power quality rating |
| Operating Temperature | -20°C to +90°C (Tc Max) | High thermal rating for enclosed luminaire channels |
| Compliance & Certifications | UL Recognized, Class 2, FCC | UL8750 Class 2 output, RoHS compliant |
Installation & Wiring Guidelines
- Power Disconnect: Always turn off main AC electrical power at the breaker panel before installing or servicing the LED driver.
- Wiring Schematic: Connect AC input leads (Black/Line, White/Neutral) to the 120–277V supply. Connect DC output leads (Red/LED+, Black/LED-) to the COB or LED array. Connect Purple (0–10V+) and Pink/Grey (0–10V-) leads to the 0–10V dimmer control if applicable.
- Thermal Mounting & Grounding: Mount the thermally enhanced plastic case using the integrated studs to ensure solid physical attachment and proper heat dissipation inside the fixture enclosure.
Frequently Asked Questions
What is the difference between ERP Power ESS and ESST series enclosures?
The ESS series utilizes a standard plastic case and covers for standard wattage models, whereas the ESST series utilizes a thermally enhanced plastic case designed exclusively for higher-power 40W models.
What does "ESST040W-0800-42" stand for in ERP Power's naming scheme?
"ESST" designates the thermally enhanced plastic case with studs for 40W models, "040W" represents the 40W max power family, "0800" indicates 800 mA constant current output, and "42" indicates the 42 VDC max output voltage.
Does this driver support both 0–10V and phase-cut dimming?
Yes. The driver features ERP Power's signature Tri-Mode Dimming, supporting 0–10V dimming across 120–277V line voltage as well as TRIAC (forward phase) and ELV (reverse phase) dimming at 120V AC input down to 1% light output.
Spec Sheets
Download the official manufacturer documentation and specifications:
Additional Information
Our Part No.: |
ERP-ESST040W-0800-42 |
Manufacturer Part No.: |
ESST040W-0800-42 |
Brand: |
ERP Power |
Fixture Type: |
LED |
Driver Type: |
Constant-Current |
Input Voltage: |
120-277V (Universal) |
Max Output Power: |
33.6W, 40W |
Max Output Current: |
800mA |
Output Current Factory Setting: |
800mA |
Max Output Voltage: |
42V |
Output Voltage Range: |
24-42V |
Dimming: |
Analog (0-10V), TRIAC, ELV |
Product Data Sheet: |
See PDF Link Provided |
Location Rating: |
Dry/Damp/Wet |
Dimensions: |
3.3" L x 1.57" W x 1.06 H" |
UL Class: |
Class 2 |
Warranty: |
Manufacturer's |
Case Size: |
10 |
