The breaker is new the box has some markings on the side with a marker The Square D JJA36250 is a new 3 pole 250 amp 600V circuit breaker with a sleek black color and I-Line mounting style. It is designed as a main breaker for AC/DC current type with 250A maximum amperage and 600V voltage rating. This reliable and high-quality product comes with free shipping, making it a great value for industrial and commercial applications requiring a heavy-duty circuit breaker solution.