Overview
The Holophane MB4C400HP48 is a 400-watt high-pressure sodium (HPS) ballast assembly engineered for reliable operation in commercial and industrial lighting systems. Built by Holophane, a trusted name in lighting equipment, this ballast assembly is designed to work with S51-style lamps and provides consistent electrical regulation for optimal lamp performance and lifespan. Ideal for facility maintenance, upgrades, and emergency replacements.
Key Features
- 400W high-pressure sodium ballast assembly
- Designed for S51 lamp configurations
- Compact, durable metal housing for industrial environments
- Transformer-based design ensures stable electrical performance
- Compatible with standard commercial and industrial luminaires
Technical Specifications
The Holophane MB4C400HP48 meets standard specifications for HPS ballast assemblies:
- Power Rating: 400 watts
- Lamp Type: High-pressure sodium (HPS), S51
- Ballast Type: Magnetic core and coil transformer
- Typical Input Voltage Options: Available in multi-voltage configurations (standard ranges 120V–480V at 60Hz)
- Physical Design: Ventilated steel housing for heat dissipation
Typical Applications
- Street lighting and roadway illumination
- High-bay industrial facility lighting
- Outdoor sports field and parking lot lighting
- Commercial building exterior and security lighting
- Emergency lighting system replacements
Compatibility & Replacements
Compatible With
- Holophane HL Series B luminaires and fixtures
- Standard commercial and industrial high-bay luminaires designed for remote ballasts
- S51-base high-pressure sodium lamp configurations
- Multi-voltage electrical distribution systems (120V, 208V, 240V, 277V, 480V)
Replaces / Drop-In Replacement For
The MB4C400HP48 is a direct replacement ballast assembly for Holophane HL Series B 400W systems and compatible with other 400W HPS ballast fixtures. Verify compatibility with your specific luminaire model before ordering.
Works With
- Remote ballast luminaire assemblies
- Standard 60Hz electrical systems
- Prismatic glass reflector and socket assemblies common to commercial lighting
- Mercury, metal halide, and HPS lamp technology
