Sylvania QHE 4X32T8/UNV ISN-SC #49857 Ballast 4-Lamp

The Sylvania Quicktronic® High Efficiency 49853 (QHE4X32T8UNVISN-SC) Ballast is a commercial-grade, multi-voltage electronic control gear module engineered to operate three or four standard or energy-saving T8 linear and U-bend fluorescent lamps. Outfitted with a universal voltage framework auto-sensing 120–277V input lines, this NEMA Premium certified ballast utilizes an efficient Instant Start initialization layout to secure a normal 0.88 ballast factor profile. Featuring patented Lamp Striation Control (LSC) circuitry to eliminate light shimmering in low-temperature zones, its compact small can (SC) housing serves as the premier energy-saving maintenance choice for commercial office troffers, industrial high-bays, and institutional modular grids.

ADL Supply Expert Application & Replacement Guide

The Sylvania QHE4X32T8UNV electronic ballast is a high-efficiency facility baseline specified heavily for mass multi-lamp ceiling troffers across commercial commercial spaces, educational institutions, retail centers, and warehouse properties. Featuring an advanced solid-state parallel wiring design, this module delivers full continuous light output across your remain paths; if an individual fluorescent bulb burns out, the remaining lamps stay safely lit to minimize immediate maintenance urgency. This NEMA Premium rated component optimizes line efficiency by 6% over standard electronic ballasts, helping commercial accounts satisfy utility rebate thresholds.

Critical Shunted Sockets Requirement and Multi-Volt Circuit Current Sizing: Property crews executing building maintenance rounds must audit fixture wiring rules before completing installation: this Instant Start device strictly mandates the use of shunted lampholders at all socket connection nodes. Shunted sockets possess an internal copper bridge linking the contact paths together, providing a single path for the high-voltage starting current to strike the gaseous columns instantly.

Connecting an Instant Start module into un-shunted sockets will isolate the line output, accelerating terminal pin degradation, socket charring, or early transistor circuit board failure. Operating a full load of four 32W T8 tubes draws a continuous current loop of 0.93 Amperes under a 120V line or 0.40 Amperes when tied into 277V utility distributions. Ensure your building electrical tracks accommodate the total collective electrical draw of your fixture rows.

Detailed Product Specifications

• Brand Name: Sylvania Quicktronic® (OSRAM Sylvania Group / Ledvance Division)
• Product Series Line: Quicktronic® High Efficiency (QHE) Professional NEMA Premium Series
• Sylvania Factory Product Order Code SKU: 49853 (Direct catalog replacement for retired code 49857)
• Manufacturer Description Nomenclature Model: QHE4X32T8UNVISN-SC
• UPC Barcode Number (GTIN-12): 046135498537
• Core Technology Class: High-Frequency Solid-State Electronic Ballast
• Starting Method Classification: Instant Start (Eliminates cathode preheating wear cycles)
• Lamp Wiring Selection Architecture: Parallel Circuit Operation (Lamps function independently)
• Certified Target System Loading: Supports 3-Lamp or 4-Lamp system load arrays
• Nominal Operational Input Voltage: 120V to 277V AC Auto-Sensing Branch Line
• Continuous Input Voltage Security Range: 108V Minimum to 305V Maximum Branch Line Tolerances
• Line Current Frequency Threshold: 50 / 60 Hz
• Total Harmonic Distortion (THD) Limit: Less than 10% under full load (Commercial Architectural Class Protection)
• Power Factor Correction Level: Active Correction Network (Greater than 0.98)
• Audible Component Sound Rating: Class A (Whisper Quiet Industry Standard; 20–24 decibels baseline)
• Minimum Operating Starting Temperature: -20°F (-29°C Cold Weather Striking Cap)
• Maximum Case Temperature Rating (Tc): 158°F (70°C Surface Safety Cutout Threshold)
• Systemic Ballast Factor (BF): 0.88 Normal Ballast Factor Performance Class
• High-Frequency Signal Output: Operating window exceeding 42 kHz (Blocks infrared sensor interference)
• Chassis Enclosure Blueprint Type: Small Can (SC) steel housing with slotted mounting flanges
• Compliance Certifications: NEMA Premium Certified, UL Listed Class P, Type 1 Outdoor, CSA Certified, FCC Part 18 Non-Consumer Class A, RoHS Compliant, Lead-Free Manufacturing Solder Process

Certified System Load Matrix (Lamping Matrix)

This multi-lamp controller is fully certified to strike and manage the following tube configurations safely. Do not mix linear profiles or differing wattages on the same ballast terminal line:

• (3 or 4 Lamps) F32T8: Standard 32W 4-foot linear fluorescent lamps
• (3 or 4 Lamps) F32T8/SUPERSAVER®: Energy-saving reduced-wattage T8 tubes (including 30W, 28W, and 25W variations)
• (3 or 4 Lamps) T8 U-Bend: Standard 32W U-shaped lamps (including FBO32, FBO31, FBO24, FBO16 lines)
• (3 or 4 Lamps) Linear Alternates: Standard FO17 (2-foot), FO25 (3-foot), and FO40 (5-foot) tracks

Operation, Safety & Mounting Compliance

High-Frequency Electronic Signal Transformation

This electronic assembly converts raw alternating current into high-frequency ballast outputs exceeding 42 kHz, completely eliminating stroboscopic workplace eye fatigue and structural flickering loops common in old low-frequency magnetic systems. It incorporates an automated active surge insulation barrier that blocks standard utility switching transients and operational spikes from breaking down sensitive internal solid-state board capacitors, meeting strict ANSI C62.41 transient protections.

Chassis Physical Structural Footprint Dimensions

• Maximum Overall Length (MOL): 9.47" Inches (240.5mm actual bracket footprint length)
• Chassis Housing Body Length: 8.90" Inches (226.1mm actual shell length)
• Chassis Housing Section Width: 1.69" Inches (42.9mm actual track width)
• Chassis Total Housing Height: 1.18" Inches (30.0mm actual vertical thickness)
• Maximum Remote Mounting Field Distance: Up to 20 feet away from fixture lampholders using 18AWG solid copper lines

Commercial Control Gear Equipment Cross-References

This universal multi-volt high-efficiency instant start ballast serves as a direct drop-in replacement or alternative for the following industry models:

• Philips Advance Match: Optanium IOP-4P32-N / Universal 120-277V T8 Instant Start Casing
• GE Lighting Alternative: UltraMax GE432MV-N / High-Efficiency T8 Electronic Control Gear
• Universal Lighting Match: BHP432PUNV-N / Professional Line Multi-Volt Electronic Module
• Keystone Reference alternative: KTEB-432RIS-1-TP / High-Efficiency Instant Start Track Block
• Hatch Reference alternative: HL432IS/UV/N Series Multi-Lamp Core Gear
• Robertson Reference alternative: ISV432MVN / High Power Factor Commercial Series

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.