JTD250 | Littelfuse Class J Time-delay Fuse, 200A 600VACJTD250 is a Class J fuse with an ampere rating of 250 and knife blade style construction. Applications Motor control centers Fused combination motor controllers Transformers UL listed series rated molded case circuit breaker panels General purpose circuits Specifications Item Number JTD250 EAN UPC Code 07945820231 Rated Voltage (AC) 600 V Rated Voltage (DC) 500 V Frequency 50 60 Hz Ampere Rating 250 A Fuse Class Class J Speed Characteristic Time Delay