High Short-Circuit Current Rating (SCCR) power distribution blocks provide up to 200 kA SCCR and help achieve compliance with NEC and OSHA requirements by resolving a common SCCR “weak link” in industrial control panels. Available in 1-, 2- and 3-pole panel mount versions with popular lineside and loadside port configurations, these blocks are UL Listed with the requisite spacing between uninsulated opposite polarities or ground by meeting the UL 1953 1” through air and 2” over surface spacings required per UL 508A for feeder circuit applications and per NEC for field installations. To increase application flexibility, these blocks feature dual-wire rated ports that accept copper or aluminum conductors while retaining a UL Listed status.

Specifications:

Type: Barrier
Voltage Rating: 600 Volt AC/DC
Current Rating: 310 Amp
Number of Poles: 1
Number of Primary Openings per Pole: 1
Primary Opening Wire Size: 2/0 AWG to 350 KCMIL Copper/Aluminum (Stranded), 1/0 AWG Copper/Aluminum (Stranded), 6 to 1 AWG Copper/Aluminum
Number of Secondary Openings per Pole: 9
Secondary Opening Wire Size: 3 to 2 AWG Copper/Aluminum (Stranded), 8 to 4 AWG Aluminum (Stranded), 8 to 6 AWG Aluminum (Stranded), 4 AWG Copper, 6 AWG Copper, 8 AWG Copper, 12 to 10 AWG Copper, 14 AWG Copper, 3 to 1/0 AWG Copper/Aluminum (Stranded), 6 to 4 AWG Copper/Aluminum, 8 AWG Copper/Aluminum, 12 to 10 AWG Copper, 14 to 6 AWG Copper, 6 to 4 AWG Aluminum (Stranded)
Conductor Material: Copper, Aluminum
Size: 4 Inch Length x 1.98 Inch Width x 3.33 Inch Height
Temperature Rating: -20 to 120 Deg C
Connector Material: Tin-Plated Aluminum
Approval: UL, CSA