Universal Lighting S250ML5AC40 Magnetic Ballast

Description:

The Universal Lighting S250ML5AC40 Magnetic Ballast is used in HID lighting systems to provide the starting voltage and regulated current required for reliable operation of a single 250W High Pressure Sodium (HPS) lamp. Commonly installed in warehouses, manufacturing facilities, parking lots, security lighting, and outdoor area lighting fixtures requiring multi-voltage input power from 120–480 VAC. Maintenance teams, electricians, and facility managers use this ballast for replacement, retrofit, and lighting repairs to restore fixture performance and ensure dependable illumination.

Applications:

The Universal Lighting S250ML5AC40 is used to operate a single 250W ANSI S50 HPS lamp in commercial and industrial lighting systems. It is commonly found in factories, warehouses, parking garages, roadways, and outdoor security lighting where HID technology provides efficient, long-life illumination. The ballast uses a magnetic core-and-coil Multi-5 design supporting five input voltages: 120, 208, 240, 277, and 480 VAC.

Technical Specifications:

• Manufacturer: Universal Lighting
• Part Number: S250ML5AC40
• Product Type: Magnetic Ballast
• Ballast Type: Magnetic Core & Coil
• Lamp Type: High Pressure Sodium (HPS)
• Compatible Lamp: (1) 250W ANSI S50 Lamp
• Input Voltage: 120 / 208 / 240 / 277 / 480 VAC
• Frequency: 60 Hz
• Number of Lamps: 1
• Start Type: Pulse Start
• Function: Provides lamp starting voltage and current regulation
• Circuit Type: Multi-5 Magnetic Core & Coil
• Input Watts: Approximately 300 W
• Ballast Factor: 1.0
• Power Factor: >90%
• Dimensions: Approximately 4.8" L × 3.8" W × 4.3" H
• Mounting Type: Fixture Mounted
• Application: Commercial and Industrial HID Lighting Systems
• Compatible Systems: Warehouses, Parking Lots, Security Lighting, and Outdoor Area Lighting
• Features: Multi-Tap Voltage Selection, Color-Coded Leads, High Power Factor Design
• Status: Legacy / Available Through Replacement and Surplus Suppliers.

Common Replacements:

• Philips Advance 71A8251-001D
• Universal Lighting S250MLTAC4M
• Universal Lighting S250TRIAC4M