Challenger 12 Space 120/240 VAC Main Breaker Load Center Guts Only 6"x12.5" Style:Used Measures exactly 28 1/4" x

Measures exactly 28 1/4" x 13 7/8" to ensure proper fit in compatible enclosures

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With its 3 phase 277/480 VAC compatibility

The Cutler Hammer QCD2100 is a 100 amp

Challenger 12 Space 120/240 VAC Main Breaker Load Center Guts Only 6"x12.5" Style:Used Measures exactly 28 1/4" xChallenger 12 space load center interior assembly designed for 120 240 VAC single phase applications. This guts only unit fits standard 6"x12. 5" enclosures and features a main breaker configuration for reliable circuit protection and distribution. Ideal for retrofit installations or custom panel builds where the outer housing is already in place. Engineered to meet electrical code requirements for residential and light commercial installations.