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LED Panels & Troffers
Howard S-400-4T-CWA-K-K - 400 Watt - High Pressure Sodium Ballast - ANSI S51 - 4 Tap - Power Factor 99% - Max. Temp. Rating 100 Deg. C - Includes Dry Film Capacitor, Ignitor, and Bracket Kit
Additional Media

Howard S-400-4T-CWA-K - 400 Watt - High Pressure Sodium Ballast

ANSI S51 - 4 Tap - Power Factor 90% - Max. Temp. Rating 212 Deg. F - Includes Dry Film Capacitor, Ignitor, and Bracket Kit

The Howard S-400-4T-CWA-K high pressure sodium ballast features a 4-tap voltage input for compatibility from 120 to 277 volts. For use with 400 watt lamps, this magnetic HID ballast boasts a high power factor of 90%, ensuring maximum efficiency. A temperature rating of 212 degrees F makes the ballast suitable for mounting in warehouses and manufacturing facilities where high heat may be an issue. Includes dry film capacitor, ignitor, and bracket kit.

Brochures & Spec Sheets


Stock Code:  BH-S040071C211K
Part No.:  S-400-4T-CWA-K
Wattage:  400 Watt
ANSI Code:  S51
Length:  12 in.
Mounting:  Hardware Included
Start Temp. (Min):  -40 Deg. F
Power Factor:  90%
Weight:  13.2 lb.
Brand:  Howard
UPC:  799385944121
Voltage:  120/208/240/277
Ballast Type:  CWA
Height:  3.87 in.
Operates:  LU400
Start Temp. (Max):  212 Deg. F
Type:  High Pressure Sodium
Warranty:  2 Years

Customer Reviews

Rated 5 out of 5 by 1 reviewer.
Rated 5 out of 5 by undoubtedly the best choice for the money cant say a single bad thing about this product. i was concerned about noise. i get annoyed by ballast noise when im working on delicate electronics repairs in my workshop. i cant concentrate on my work when theres alot of noise. as it turns out, this is considerably quieter than the original ballast i replaced. it runs very quietly, almost no sound at all. i dont think any similar products will be quieter. the cost of this product is cheaper than several others, but it is not of lesser quality. 1000bulbs.com has never let me down when im shopping for a reasonable price. ignitor has no problem instantly firing up any bulb ive thrown at it, including CMH. this ballast performs flawlessly. i dont see how anyone could justify spending more money for a different ballast. this is the only choice for me. September 8, 2012
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