Keystone HPS-250A-P-KIT -250W HPS Ballast Kit – Multi-Tap S50

Product Description

The Keystone HPS-250A-P-KIT is a high-performance 250W High Pressure Sodium (HPS) ballast kit, built for industrial, commercial, and horticultural applications where reliability and efficiency matter most.

This CWA-type (Constant Wattage Autotransformer) ballast features multi-tap input (120V to 480V), a hybrid copper/aluminum winding, and ANSI S50 compliance, making it a direct-fit replacement for most 250W HPS systems.

With a durable build, stable ignition, and 200°C insulation class, it’s made to withstand heat, voltage fluctuations, and long runtimes without compromise.

Key Features:

• Lamp Type: 250W High Pressure Sodium (ANSI S50)

• Circuit Type: CWA (Constant Wattage Autotransformer)

• Input Voltage: 120V / 208V / 240V / 277V / 480V (Multi-Tap)

• Voltage Regulation: ±10%

• Frequency: 60 Hz

• Ignitor: IGN-XG-02/P – consistent, reliable lamp starter

• Capacitor Specs:

  • Capacitance: 5 µF

  • Voltage Rating: 240V

  • Temperature Rating: 105°C

• Insulation Class: 200°C – for high-heat operating environments

• Winding Materials: Copper / Aluminum (Cu/Al hybrid)

• Agency Certifications: RU, cRU (UL Recognized in the U.S. and Canada)