Halco M57/175CWA/4T/K 55164 175W Metal Halide Ballast M57/H39 4T Kit (55140)

Multi-voltage 4-tap electromagnetic ballast kit for one 175W MH175 standard metal halide lamp (ANSI M57/H39), field-configurable for 120V, 208V, 240V, or 277V service. The constant-wattage autotransformer (CWA) circuit stabilizes lamp output through line-voltage swings and pairs with legacy probe-start metal halide lamps for direct-replacement service work.

Features

• Operates one 175W MH175 standard metal halide lamp
• ANSI code M57/H39 lamp compatibility
• 4-tap multi-voltage input: 120V, 208V, 240V, and 277V
• Constant-wattage autotransformer (CWA) circuit for line-voltage regulation
• Electromagnetic (magnetic-core) construction

Ideal For: Metal halide replacement in legacy fixtures • Warehouse and industrial highbays • Retail and commercial area lighting • Sports and site lighting • Contractor service work