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Rectangular plastic LED driver housing with terminal connections

Hubbell Incorporated

Hubbell Incorporated LED 40W 700mA 20-57V 347-480V Dimmable Ballast

SKU CH-9B74-214AK

A 40 W constant-current LED driver delivering 700 mA at 20 to 57 Vdc with 0-10 V dimming on a 347-480 Vac input, rated IP66 and NEMA 4 for dry and damp locations

  • Constant 700mA output delivers stable LED performance
  • 20-57Vdc range matches diverse LED arrays
  • 347-480Vac input suits commercial high-voltage supplies
  • 0-10V dimming enables smooth light-level control
  • IP66 and NEMA4 rating protects against dust and water

High-voltage LED driver for 347-480V systems

This constant-current ballast powers LED arrays from a 347-480Vac supply, making it suitable for commercial and industrial lighting installations that operate on high-voltage distribution. It delivers a regulated 700mA output across a 20-57Vdc range with a maximum of 40W. The driver supports 0-10V dimming control for adjustable light levels. Its IP66 and NEMA4 rated plastic housing is UL listed for dry and damp locations.

700mA constant current output

The single specification that determines compatibility is the fixed 700mA output current; the connected LED load must be rated for exactly this current. The driver will regulate voltage automatically between 20Vdc and 57Vdc to maintain that current, up to the 40W power limit. If the LED module requires a different drive current or operates outside this voltage window, the driver will not function correctly.

Fits high-voltage wiring and damp environments

The unit connects directly to 347-480Vac branch circuits without a step-down transformer, simplifying wiring in facilities that use these distribution voltages. The IP66 and NEMA4 enclosure withstands water jets and dust, allowing mounting in exposed or humid areas such as parking structures, warehouses or exterior canopies. Operating temperature ranges from -30C start-up to a 90C maximum case temperature, so thermal management in the fixture must keep the case within this limit. The 0-10V dimming wires integrate with standard lighting controls.

Highlights

  • Constant 700mA output delivers stable LED performance
  • 20-57Vdc range matches diverse LED arrays
  • 347-480Vac input suits commercial high-voltage supplies
  • 0-10V dimming enables smooth light-level control
  • IP66 and NEMA4 rating protects against dust and water

Specifications

BrandHubbell Lighting Components

Questions about this item

How much power does the 40 W rating deliver to the LED load?

The driver supplies up to 40 watts to the LED array at a constant 700 mA across the 20 to 57 Vdc output range.

What does the 0-10 V dimming input actually control on this unit?

The 0-10 V signal adjusts the constant 700 mA output current, reducing light output from the connected LEDs.

What space and mounting provisions does the IP66 NEMA 4 housing require?

The plastic housing is rated for dry and damp locations and operates up to 90 °C case temperature, so allow airflow around the case when mounting.

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