PDB UL Listed power distribution blocks

Series PDB of Power Distribution Blocks

High SCCRs help improve equipment SCCRs

Now with dual wire rated ports

Bussmann series high Short-Circuit Current Rating (SCCR) power distribution blocks provide up to 200 kA SCCR and help achieve compliance with National Electrical Code (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 and provide the requisite spacing between uninsulated opposite polarities or ground by meeting the UL 1953 1” through air and 2” over surface for 301 to 600 volt applications.

To increase application flexibility, these blocks feature dual-wire rated ports that accept copper or aluminum conductors while retaining a UL Listed status.

Optional covers are available to enhance electrical safety.

Data sheet no. 10537

Product profile no. 3134

Old data sheet no. 1049 (see data sheet no. 10537)

Agency cards

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Catalog no. Amps Poles Lineside ports per pole* Loadside ports per pole*
PDB204-1 175 1 1 1
PDB204-3 175 3 1 1
PDB220-1 175 1 1 4
PDB220-3 175 3 1 4
PDB280-1 175 1 1 1/4-20 x 3/4" stud
PDB280-3 175 3 1 1/4-20 x 3/4" stud
PDB321-1 175 1 1 6
PDB321-2 175 2 1 6
PDB321-3 175 3 1 6
PDB323-1 310 1 1 6
PDB323-3 310 3 1 6
PDB370-1 310 1 1 12
PDB370-3 310 3 1 12
PDB371-1 310 1 1 6/3
PDB371-3 310 3 1 6/3
* See data sheet no. 10537 for wire and torque specifications.