New Arrivals/Restock

Robertson RSO140C120WS (3P20129) Electronic Preheat Rapid-Start Circline Ballast 120V for Single FC16T9 (40 W) or FC12T9 (32 W) Lamps (Qty 1)

flash sale iconLimited Time Sale
Until the end
23
46
29

US$21.00 cheaper than the new price!!

Free shipping for purchases over $99 ( Details )
Free cash-on-delivery fees for purchases over $99
Please note that the sales price and tax displayed may differ between online and in-store. Also, the product may be out of stock in-store.
Used  US$14.00
quantity

Product details

Management number 218132737 Release Date 2026/05/03 List Price US$14.00 Model Number 218132737
Category

The Robertson RSO140C120WS is a highly dependable electronic preheat rapid-start ballast engineered for single-circuit fluorescent Circline lighting applications. Compatible with FC16T9 (40 W) and FC12T9 (32 W) lamps, it delivers smooth ignition and consistent lumen output in both residential and commercial spaces. Built with robust, encased, and potted construction, it offers maximum thermal and surge protection along with end-of-lamp-life safeguards. Rated for ambient conditions from 0 F to 131 F (18 C to 55 C) and enduring over 15,000 lamp starts, this ballast ensures long-lasting, maintenance-free performance. Its Class A quiet operation and compliance with leading safety and EMI standardsincluding UL, cUL, FCC, and ANSImake it ideal for noise-sensitive and regulated environments. The integrated socket connector simplifies installation and retrofitting into existing Circline fixtures. Engineered as a replacement for models like the KTEB1401TPWSEMI, the RSO140C120WS offers a seamless upgrade path for older fixtures.

  • Preheat Rapid-Start Electronic Ballast - Designed to deliver smooth, energy-efficient ignition and reliable operation for single Circline lampsFC16T9 (40 W) or FC12T9 (32 W) models
  • Direct Replacement with Socket Connector - Features an integrated socket connector for straightforward replacement in recessed Circline fixtures. Crosses with the KTEB1401TPWSEMI and others.
  • Quiet, Safe & Compliant - Normal power factor, sound-rated A, and compliant with UL/935 (Class P, Type 1 Outdoor), cUL (CSA C22.2), FCC Part 18 (Class B), ANSI C82.11, and ANSI C62.41 standards.
  • Encased & Potted Construction - Durable design includes internal surge and end-of-lamp life protection. Rated for ambient up to 131F (55 C) and maximum case temperature of 167F (75 C).
  • Reliable Performance Across Temperatures - Starts reliably at 0 F (18 C), supports more than 15,000 starts, and allows remote mounting up to 18 ft.
Color Galvanized/White
Voltage 120 Volts
Wattage 32 watts
Material Metal
Item Weight 0.01 ounces
Part Number 3P20129
Manufacturer Robertson Worldwide
Type of Bulb Fluorescent
Item model number 3P20129
Batteries Included No
Batteries Required No
Product Dimensions 3.88 x 2.06 x 1.13 inches
Included Components Ballast
Item Package Quantity 1

Correction of product information

If you notice any omissions or errors in the product information on this page, please use the correction request form below.

Correction Request Form

Product Review

You must be logged in to post a review