Halco M57/175CWA/5T/K 175W Metal Halide Ballast M57/H39 5T Kit (55142)

Five-tap electromagnetic ballast kit for one 175W MH175 standard metal halide lamp (ANSI M57/H39), rated across 120V, 208V, 240V, and 277V line inputs with an additional tap for expanded service compatibility. The constant-wattage autotransformer (CWA) circuit stabilizes lamp output through line-voltage variation and pairs with legacy probe-start metal halide lamps.

Features

• Operates one 175W MH175 standard metal halide lamp
• ANSI code M57/H39 lamp compatibility
• 5-tap wiring rated for 120V, 208V, 240V, and 277V input
• 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