Bussmann NFT3-WH Terminal Block. Bussmann Terminal Block, 2-Circuit Feed-Through, 600 VAC, 40 A, 3 Pole, 22 to 8 AWG Wire, 9.91 mm Spacing, 18 in-lb Torque, C-Rail Mounting, 8-32 TPI Screw Connection, 105 deg C, Thermoplastic, White, 1.18 in L x 1.29 in W x 1.23 in H Dimensions. Additional Description: UNDR-NFT3WH ASSEMBLY NO.15201-10. Catalog Description: Rail Mount Terminal Block, 40A, 600V, C-Rail mount, 105°C, White, Three-pole, 18 lb-in torque.