250W (S50) High Pressure Sodium Ballast Kit – Electrical Lighting Solutions

The Keystone 250W (S50) High Pressure Sodium Ballast Kit is designed for reliable operation in lighting systems requiring high pressure sodium lamps. This kit is suitable for electrical distributors and switchgear suppliers needing a quad-tap ballast capable of handling multiple line voltages. It supports lighting solutions with a CWA circuit type and is engineered for use with 250W high pressure sodium lamps, providing stable performance in commercial and industrial lighting applications.

Specifications

• ANSI Designation: S50
• Line Voltage: 120/208/240/277 V (Quad Tap)
• Regulation: 10%
• Frequency: 60 Hz
• Recommended Fuse (A): 8/5/4/4
• Circuit Type: CWA
• Insulation Class: 180¬∫C
• Capacitor: 35 ¬µF
• Capacitor Voltage Rating: 280 V
• Capacitor Temperature Rating: 90¬∫C
• Winding Materials: Copper/Aluminum
• Lamp Starter: XG-02
• Agency Certification: RU, cRU
• Maximum Distance to Lamp: 10 FT
• Input Power: 300W
• Minimum Start Temperature: -40¬∫F / -40¬∫C
• Physical Dimensions: Length 4.30", Width 1.81", Height 4.80"
• Mounting Dimensions: Mounting 1 - 3.87", Mounting 2 - 4.38"
• Ballast Weight: 9.3 lbs
• Lead Length: 12-14"
• Capacitor Specifications: Diameter 1.76", Height 3.67", Type Dry Film
• Ignitor Specifications: Diameter 1.32", Height 2.34", Type CWA

Features

• Pre-wired ballast with properly rated capacitor and ignitor included
• Supports multiple line voltages with quad tap design for versatile installation
• Durable insulation class rated for 180¬∫C operation
• Includes mounting hardware and pictorial installation guide for ease of setup
• Certified to meet RU and cRU agency standards ensuring compliance and safety
• Designed for use with 250W high pressure sodium lamps, ideal for commercial lighting
• Low minimum start temperature for reliable ignition in cold environments

Downloads & Links

• Spec Sheet