Product Overview
Universal B240R277HP-A Electronic Ballast – 2 Lamp F40T12 | 277V | Rapid Start
High-efficiency 277V electronic ballast designed to replace magnetic T12 ballasts with quieter operation and improved energy performance.
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Lamp Type
F40T12
Fluorescent
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Lamp Count
1–2 Lamps
Series Operation
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Voltage
277V
Commercial Use
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Start Type
Rapid Start
Extended Lamp Life
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Application
T12 Retrofit
Commercial
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Compatible Lamps
- (1–2) F40T12 40W (48") Fluorescent Lamps
- (1–2) F34T12 34W Energy Saving Lamps
- (1–2) F30T12 / F30T12ES (36") Lamps
- (1–2) F32T12 (36") Lamps
Product Overview
The Universal B240R277HP-A is a high-frequency electronic rapid start ballast engineered for 277V commercial lighting systems. It replaces traditional magnetic ballasts with improved efficiency, quieter operation, and extended lamp life.
Key Features
- Rapid start technology extends lamp life
- High-frequency operation eliminates flicker and noise
- Improved efficiency vs. magnetic ballasts
- Low-profile lightweight housing for easy installation
- Reliable performance in commercial environments
Technical Specifications
- Input Voltage: 277V AC ±10%, 60Hz
- Ballast Factor: ~0.88 (Typical)
- Power Factor: >0.90
- THD: <20%
- Start Method: Rapid Start
- Operation: Series Lamp Operation
- Compliance: UL Type 1 Outdoor, RoHS, FCC Part 18
Applications
- Commercial lighting systems (277V circuits)
- Office and warehouse fluorescent fixtures
- Maintenance replacement for magnetic ballasts
- T12 retrofit projects
Important Notes
- 277V ballast – verify supply voltage before installation
- Designed for T12 fluorescent systems only
- Not compatible with CFL (2G11) or LED tubes unless specified
- Professional installation recommended
