This NSi Industries J-30 jumper is made of silicon bronze for conductivity and resistance to corrosion, and is suitable for use with NSi Industries double-row terminal blocks. It has a current rating of 30 amps, and is used to bridge two terminals on a terminal block. This jumper is suitable for a wide range of electrical applications with an appropriate NSi Industries terminal block.

NSi Industries manufactures electrical components and sensors, lighting products, and energy management products. The company, founded in 1975, is headquartered in Huntersville, NC.