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Cooper Bussmann - 3 Pole, 3 Phase, 20 kA Nominal Current, 4-1/8 Inch Long x 3-3/8 Inch Wide x 4-1/16 Inch Deep, Hardwired Surge Protector - 61505400 - MSC Industrial Supply
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Cooper Bussmann - 3 Pole, 3 Phase, 10 kA Nominal Current, 4-1/8 Inch Long x 3-3/8 Inch Wide x 4-1/16 Inch Deep, Hardwired Surge Protector - 61505251 - MSC Industrial Supply
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