Product Overview

Sylvania 49947 QTP4X32T8/UNV ISN-SC QUICKTRONIC Professional – 4-Lamp T8 Electronic Ballast | 120-277V | Instant Start

The Sylvania 49947 (QTP4X32T8/UNV ISN-SC) is a high-performance electronic ballast from the QUICKTRONIC® Professional series, designed to operate up to four T8 fluorescent lamps. Engineered for maximum versatility, this Instant Start ballast features a Normal Ballast Factor (0.88) and universal voltage (120-277V) capability. Its parallel circuitry ensures that if one lamp fails, the remaining lamps stay illuminated, minimizing maintenance downtime. This unit is a high-efficiency replacement for older magnetic systems, providing up to 40% energy savings. UPC: 046135499470.

Lamp Type

Fluorescent

Max Lamps

Parallel

Voltage

UNV

120-277V

Ballast Factor

0.88

Normal Power

Start Type

Instant

Electronic

Technical Specifications

Brand: Sylvania QUICKTRONIC Professional
Order Code: 49947 (Commonly replaces 49908)
Abbreviation: QTP4X32T8/UNV ISN-SC
Input Voltage: 120-277V (50/60Hz)
Power Factor: > 0.97
Total Harmonic Distortion (THD): < 10%
Starting Temperature: 0°F (-18°C) for standard lamps; 60°F (16°C) for Supersaver®
Max Case Temp: 70°C (158°F)
Dimensions: 9.47" L x 1.69" W x 1.18" H
Mounting Length: 8.90"
Weight: 1.6 lbs
Compliance: RoHS, FCC 47 CFR Part 18 Non-Consumer, UL Listed Class P

Compatible Lamp Types

This versatile ballast is capable of operating the following lamp configurations:

F32T8 (Standard 4ft): Operates 3 or 4 lamps (including FO32, FO32/ECO, FO32/XP)
Energy Saving T8: Supports 25W, 28W, and 30W Advantage lamps
Short T8: FO17 (2ft) and FO25 (3ft) - 3 or 4 lamp configurations
Long T8: FO40 (5ft) - 3 lamp configuration
U-Bend: FBO32, FBO31, FBO24, FBO16, and Supersaver variants

Product Benefits

High Efficacy: Optimized to run Sylvania OCTRON T8 lamps at peak light output with minimal energy draw.
Parallel Wiring: If one lamp fails, the other three stay lit, which is vital for commercial facilities to maintain visibility.
Small Can Design: The compact "SC" enclosure fits into modern, low-profile fixtures with limited space.
Anti-Flicker Technology: High-frequency operation (> 42kHz) eliminates visible flicker and potential interference with infrared controls.

Cross-Reference & Compatibility

? Direct Replacement Information:

The 49947 is a direct functional equivalent to the **Universal B432IUNVHP-A**, **GE-432-MV-N**, and **Philips Advance ICN-4P32-N**. It is often used to replace the older Sylvania 49908 and 49971 models.

Universal: B432IUNVHP-A
GE: GE-432-MV-N / 71424
Philips Advance: ICN-4P32-N / ICN-4P32-SC
Keystone: KTEB-432LBF-UV-TP-PIC
Howard: EP4/32IS/120-277

Ordering Information

Sylvania Part Number: 49947
UPC Code: 046135499470
Case Quantity: 10 per Case
Standard Lead: Side Exit

ADL Supply Note: For optimal performance and warranty compliance, ensure the fixture is grounded and the ballast case is securely mounted to a metal surface.