Keystone KTEB-242-UV-RS-DW-KIT 42W Cfl Electronic Ballast

Product Description

The KEYSTONE KTEB-242-UV-RS-DW-KIT is a compact electronic fluorescent ballast designed to operate 1 or 2 compact fluorescent lamps (CFL) up to 42W using a rapid start circuit. It runs on a dual-voltage input of 120/277 VAC at 50/60 Hz, making it suitable for both standard and commercial voltage applications. The high power factor (HPF) design delivers a power factor of 0.97 to 0.99 and keeps total harmonic distortion (THD) at or below 15 percent. Ballast factor range of 0.8 to 1.2 gives installers flexibility across light output levels. The unit is UL listed for use in Canada and the United States and is RoHS compliant. It measures 5 inches long by 3 inches wide by 1.38 inches high and ships with a mounting bracket, wire lead, and hardware included.

This ballast is used in commercial and residential fluorescent lighting fixtures that accept 4-pin T5 compact fluorescent lamps with GX24q, G24q, GR10q, or 2G11 lamp bases. Compatible lamp types include CFTR42W/GX24q, CFTR32W/GX24q, CFQ26W/G24q, CFTR26W/GX24q, FC9T5 22W, CFTR57W/GX24q, FT40W/2G11, FT36W/2G11, FT24W/2G11, CFS28W/GR10q, and FC9T5/FC12T5. Typical install scenarios include troffer retrofits, downlight cans, and task lighting fixtures in commercial office, retail, and institutional environments. The parallel wiring configuration maintains lamp operation if one lamp fails. Licensed electricians handle ballast replacement as part of routine fixture maintenance or lamp-type upgrades.

Key Features

• Rapid start circuit supports 1 or 2 lamp operation up to 42W per lamp
• Dual input voltage 120/277 VAC accommodates standard and commercial branch circuits
• High power factor (HPF) rated at 0.97 to 0.99 reduces reactive load on the circuit
• Ballast factor range of 0.8 to 1.2 allows light output adjustment across four operating modes
• Parallel wiring keeps remaining lamp lit if one lamp reaches end of life
• End-of-life lamp protection circuit prevents overheating from a failed lamp
• Includes mounting bracket, wire lead, and hardware for direct installation
• UL listed (Canada and US), RoHS compliant, meets ANSI/IEEE C62.41

Compatibility

Compatible lamp types stated by the manufacturer: CFTR42W/GX24q, CFTR32W/GX24q, CFQ26W/G24q, CFTR26W/GX24q, FC9T5 22W, CFTR57W/GX24q, FT40W/2G11, FT36W/2G11, FT24W/2G11, CFS28W/GR10q, and FC9T5/FC12T5. Accepts 4-pin T5 lamp styles. Designed as an OEM-style replacement electronic ballast for fixtures using GX24q, G24q, GR10q, or 2G11 base compact fluorescent lamps.

Installation Notes

Ballast replacement is performed by a licensed electrician. Always shut off and lock out the branch circuit breaker before opening the fixture housing and disconnecting the existing ballast. Follow NEC requirements for fixture wiring, and verify that the replacement ballast input voltage matches the branch circuit voltage before energizing. Do not operate the ballast outside its rated lamp type list, as mismatched lamps can trigger end-of-life protection or cause premature ballast failure.

Technical Specifications

• Lamp Wattage: 42W maximum
• Number of Lamps: 1 or 2
• Input Voltage: 120/277 VAC
• Input Current: 0.13/0.25/0.35/0.7 amps
• Input Power: 31/50/67/84W
• Frequency Rating: 50/60 Hz
• Power Factor: 0.97/0.98/0.99
• Circuit Type: HPF
• Starting Type: Rapid Start
• Ballast Factor: 0.8/0.95/1.0/1.2
• Maximum THD: 10/15 percent
• Minimum Starting Temperature: -18 degrees C
• Lamp Style: 4-Pin T5
• Wiring: Parallel
• Dimensions: 5 inches L x 3 inches W x 1.38 inches H
• Case Material: Plastic
• Case Temperature Rating: 75 degrees C
• Case Style: S1
• Applicable Standard: ANSI/IEEE C62.41
• Approvals: UL (Canada and US)
• RoHS Compliant: Yes
• Country of Origin: China
• Includes: Mounting bracket, wire lead, and hardware

Standard Information

• Brand: KEYSTONE
• Manufacturer Part Number: KTEB-242-UV-RS-DW-KIT