ETC Sensor IQ 277V Main Breaker - 400 MCB (IQ277-MB400) - Bottom Feed Breaker(0)No Reviews yet Quantity discounts available QuantityPrice SKU: ETC 7131K1246-B Quantity -+ Add to Cart Details We are not an authorized ETC dealer. Please contact manufacturer for warranty information.Sensor IQ 277V main breaker - 400A MCB Details Back DetailsWe are not an authorized ETC dealer. Please contact manufacturer for warranty information.Sensor IQ 277V main breaker - 400A MCB Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review