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 Number PDB204-_, PDB220-_, PDB280-_, PDB321-_, PDB323-_, PDB370-_, PDB371-_
Dimensions See data sheet no. 10537
Volts 600 V
Amps 175 to 310 A
SCCR Up to 200 kA with tested upstream fuses and circuit breakers (see data sheet no. 10537 for details)
Agency information - UL 1953 Listed , Guide QPQS, File E256146
- CSA Certified, Class 6228-01, File 47235
Accessories Optional covers available to enhance electrical safety

Features

  • High short-circuit current ratings up to 200 kA, these PDBs do not have to be the "weak link" in achieving high equipment SCCR for compliance with NEC and OSHA requirements.
  • These blocks provide 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.