Sylvania QHE4X32T8UNVPSX-SC #51438 Type CC

The Sylvania Quicktronic® High Efficiency QHE4x32T8/UNV PSN-SC Ballast (Sylvania 51438) is a commercial-grade, premium electronic fluorescent ballast engineered to operate one, two, three, or four T8 linear lamps or matching U-bend arrays. Delivering professional-grade performance, this NEMA Premium certified workhorse is optimized to balance lighting output with maximum energy conservation. Equipped with advanced PROStart® programmed-start ignition technology and a low-profile small-can enclosure, it regulates a stable 0.88 normal ballast factor while keeping total harmonic distortion (THD) below 10%, making it an ideal choice for smart corporate facilities, institutional environments, and automated switching tracks.

ADL Supply Expert Application & Replacement Guide

The Sylvania Quicktronic QHE4x32T8/UNV PSN-SC ballast is an industry-standard commercial footprint option specified heavily for corporate offices, school troffers, retail environment strip fixtures, and multi-lamp industrial layout architectures. Engineered to serve as a high-efficiency trade solution, its universal auto-sensing solid-state topography easily outpaces legacy magnetic components, providing corporate facility accounts a fast return on investment (ROI) during utility-subsidized building transformations. Its compact low-profile "Small Can" (SC) chassis nests flush into standard shallow wireway troffers.

Critical Un-Shunted Lampholder Requirements and Occupancy Sensor Tracking Optimization: This component features an electronic **PROStart® programmed-start ignition loop incorporating intelligent filament preheating controls**. By warming the lamp cathodes to a certified electron emission temperature before striking the primary arc channel, it completely isolates the tubes from cathode sputtering and accelerated end-blackening. This makes it 100% compatible with high-frequency motion tracking occupancy sensors, rapid cycling control arrays, and daylight harvesting networks, sustaining full lamp life over tens of thousands of automated switching cycles.

However, field technicians executing maintenance retrofits must track an absolute hardware layout boundary: **the programmed preheating sequence strictly mandates the use of non-shunted (un-shunted) bi-pin lampholders at all socket positions**. A non-shunted socket features completely separate electrical pathways for the left and right lamp pins. Trying to connect this ballast to shunted lampholders left over from an old Instant Start fixture setup will short out the preheat tracking loop, triggering rapid filament degradation and early lamp failure.

Detailed Product Specifications

• Brand: Sylvania (OSRAM Quicktronic® Series Line)
• Product Series Line: Quicktronic® High Efficiency (QHE) PROStart® Trade Line
• Sylvania 5-Digit Factory Order NAED Code: 51438
• Manufacturer Nomenclature Model: QHE4x32T8/UNV PSN-SC
• UPC Barcode Number (GTIN-12): 046135514389
• Control Component Class: Electronic Programmed Start — High Frequency Operation
• Load Circuit Connection Format: Parallel-Series Wiring Hybrid Layout Matrix
• Nominal Input Voltage Parameter: Universal 120V - 277V AC Auto-Sensing Base
• Line Input Frequency Capacity: 50 / 60 Hz
• Ballast Factor Rating Constant: 0.88 (Normal Output Light Tuning Curve)
• Total Harmonic Distortion (THD): Less than 10% under full standard continuous load
• Power Factor Metric: Greater than 0.98 (High-Power Factor Performance)
• Total Circuit Input Power: 110 Watts (at 120V) / 108 Watts (at 277V) running standard 4-lamp loads
• Continuous Amperage Draw: 0.93 Amps at 120V / 0.40 Amps at 277V tracking
• Sound Insulation Class: Sound Rated A (Optimal for Quiet Office, Classroom, and Library Environments)
• Housing Material Enclosure: Low-Profile Compact Metal "Small Can" (SC) Chassis Case
• Maximum Case Temperature Threshold (Tc): 158°F (70°C)
• Minimum Ambient Starting Temperature: -20°F (-29°C) for standard standard T8 linear runs
• Maximum Lead Wire Remote Distance: Up to 20 feet using 18 AWG copper wire leads
• Chassis Physical Length: 9.47" Inches (240.5mm actual base dimension)
• Chassis Physical Width: 1.69" Inches (42.9mm actual base dimension)
• Chassis Physical Height: 1.18" Inches (30.0mm actual depth dimension)
• Industry Compliance Matrix: NEMA Premium Efficiency Certified, UL Listed (Class P, Type 1 Outdoor), UL Type CC Anti-Arcing Certified, CSA Approved, RoHS Compliant, FCC Part 18 Non-Consumer

Certified Linear & U-Bend T8 Lamp Load Matrix

This PROStart multi-voltage electronic ballast is certified to drive the following linear and U-bend lamp types (1 to 4 lamps simultaneously):

• Standard 48-Inch T8 Linear Runs: FO32, FO32/Alto® (32W standard linear fluorescent tubes)
• Energy Saver Linear T8 Options: FO30 (30W), FO28 (28W), FO25 (25W high-efficacy energy-saving models)
• Compact T8 Linear Scaled Formats: FO17 (24-Inch 17W), FO25 (36-Inch 25W linear tracking)
• U-Bend Footprint Formats: FBO32, FBO31 (Standard and energy-saving equivalent U-bend fluorescent T8 lamps)

Operation, Safety & Mounting Compliance

High-Frequency Harmonic Separation and Anti-Striation Logic Systems

Operating at electrical arc frequencies well above 42 kHz, this electronic control module entirely separates the fixture from the visible stroboscopic effect and heavy 60Hz humming loops common in outdated magnetic setups. It features built-in anti-striation tracking logic, an absolute engineering requirement when driving modern low-mercury tri-phosphor or energy-saving argon/krypton gas-blend tubes. This stabilization circuit continuously dampens standing wave gas resonance inside the glass envelope to eradicate rolling dim bands or spiraling dark patterns, guaranteeing steady visual comfort across wide commercial offices.

Intelligent End-of-Life Cutout and Grounding Fastener Rules

This electronic component incorporates automated **Lamp End-of-Life (EOL) protection safety circuitry**. As a fluorescent tube reaches its natural degradation phase and leaks internal arc voltage, the digital tracking sensor catches the voltage spike and immediately opens the circuit track to prevent localized plastic lampholder sockets from cracking or charring. During commercial retrofit maintenance swaps, installers must mount the ballast casing completely flush against the fixture steel tray panel using the standard 8.9" center-to-center mounting slots to establish a low-impedance grounding pathway. Floating ballast grounds inside fluorescent troffers bypass safety circuits and induce localized static noise tracking loops.

Commercial Equipment Industry Cross-References

This premium 51438 high-frequency electronic ballast serves as a direct substitute for the following setups:

• Philips Advance Match: ICN-4P32-N / IOP-4P32-N (Centium or Optanium 4-Lamp Universal Alternatives)
• GE Current Precision Core: GE432MVPS-N / UltraStart High-Efficiency Multi-Volt Programmed Series
• Universal Lighting Match: B432IUNVHP-A / Triad High-Performance Programmed Series Elements

Bulk Commercial Lighting Supply & Project Support

ADL Supply handles volume distribution shipments, multi-pack logistics, and contractor project quotes for procurement teams, schools, and warehouse facilities nationwide.

For specialized contractor pricing tiers, job-site pallet deliveries, or comprehensive submittal documentation, contact our support team directly at 1-800-235-3489. We are your commercial supply partners as an authorized wholesale Lighting Distributor In Doral, Florida.