Overview
The Holophane MB4C400HP48 is a 400W HPS (high-pressure sodium) ballast assembly designed for 480V three-phase industrial lighting systems. This unit integrates core, coil, and capacitor components into a complete ballast assembly, providing the electrical regulation and starting control required for reliable HPS lamp operation in outdoor street, area, and facility lighting applications.
Key Features
- 400W HPS lamp rating with 480V input voltage and 60Hz operation
- Integrated ballast assembly with core, coil, and capacitor pre-assembled
- Designed for S51 lamp configuration and LBF2-5024 lamp socket compatibility
- Provides stable arc ignition and consistent lamp performance
- Industrial-grade construction for outdoor and demanding environments
- Manufactured by Holophane, a leading supplier of outdoor lighting ballasts
Technical Specifications
- Lamp Type: High-Pressure Sodium (HPS)
- Lamp Wattage: 400W
- Input Voltage: 480V AC
- Frequency: 60Hz
- Ballast Type: Magnetic core and coil with integrated capacitor
- Mounting: Fixture-mounted assembly
- Operating Temperature Range: Typical industrial range (-20°C to +50°C)
- Weight: Approximately 8.0 lbs
- Product Code: LBF2-5024
Typical Applications
- Street lighting fixtures and area luminaires
- Industrial facility and warehouse lighting
- Outdoor security and perimeter lighting
- Parking lot and roadway illumination
- Retrofit and replacement ballast assembly for existing 480V HPS fixtures
Compatibility & Replacements
Compatible With
- Holophane 480V outdoor lighting fixtures rated for 400W HPS lamps
- Standard S51 HPS lamp configurations
- LBF2-5024 lamp socket assemblies
- Three-phase 480V AC power distribution systems at 60Hz
- Holophane spherical street lights and post-top luminaires
Replaces / Drop-In Replacement For
- Holophane RBK400HP48B (400W HPS ballast replacement kit)
- Original Holophane MB4C400HP48 ballast assemblies in existing fixtures
Works With
- Holophane outdoor luminaire fixtures and assemblies
- Standard 480V three-phase lighting control systems
- Photoelectric sensors and dusk-to-dawn controls compatible with 480V ballasts
- Auxiliary equipment and mounting brackets designed for Holophane ballast assemblies
