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16021-4 Datasheet, PDF (9/23 Pages) Cooper Bussmann, Inc. – Power Distribution Blocks & Terminal Blocks with High Short-Circuit Current Ratings
Series PDB Power Distribution Blocks
Feature/Benefits
• High Short-Circuit Current Ratings up to 200kA
PDBs do not have to be a weak link in achieving high
SCCR for an industrial control panel
• Suitable for installation in wireways (with optional covers)
and industrial control panel feeder and branch circuits.
Listed to UL1953 which has minimum spacing
requirements at 600V of at least 1” through air and 2”
Agency/Standards
• UL Listed 1953, Guide QPQS, File E256146
Electrical
• 600Vac or dc (UL 1953)
• Short-Circuit Current Ratings up to 200kA, see table
• 75ºC rated connectors, ampacities up to 310A
• Wire range 14 AWG to 350 kcmil CU
• Spacing between uninsulated opposite polarities or ground
meets UL 1953 which requires at least 1” through air and
2” over surface for 301 to 600V
Mechanical
• Panel mount
• Flammability, UL 94V0
• Tin-plated AL connectors suitable for CU conductors
Series PDB
Terminal Copper Conductor Capability
Line
Load
Configuration
Short-Circuit Current Rating Data
Conductors
Max Fuse Class & Amp**
Part
Number Amps Wire Range
PDB204-1
PDB204-3 175A 2/0 to 8 AWG
PDB220-1 175A 2/0 to 8 AWG
PDB220-3
Wire Range
2/0 to 8 AWG
4 to 14 AWG
Openings per Pole
Line Load
Line
AWG or
kcmil
Load J T
AWG or LPJ JJS
kcmil
JJN
RK1
LPS-RK
LPN-RK
RK5
FRS-R
FRN-R
SCCR
2/0 to 8 2/0 to 8 200 200 200
60 200kA
4 to 12 200 200 200
2/0 to 8 4 to 14 175 175 100
60 200kA
60 100kA
PDB280-1 175A 2/0 to 8 AWG 1/4-20 X 3/4 STUD
PDB280-3
2/0 to 8 Stud 200 200 100
PDB321-1
PDB321-2
PDB321-3
175A
2/0 to 8 AWG
PDB323-1
PDB323-3 310A 350kcmil to 4 AWG
4 to 14 AWG
4 to 12 AWG
4 to 12 400 400 200
2/0 to 8
4 to 12 175 175 100
4 to 8 400 400 200
350 to 4
4 to 12 175 175 100
PDB370-1
PDB370-3 310A 350kcmil to 4 AWG 4 to 14 AWG
4 to 8 400 400 200
350 to 4
4 to 14 175 175 100
PDB371-1
PDB371-3
310A 350kcmil to 4 AWG (6) 2 to 12 AWG
(3) 1/0 to 12
1/0 to 6 400 400 200
350 to 4
1/0 to 12 175 175 100
Ampacities 75C per NEC® Table 310.16 and UL508A Table 28.1
** Class G 60A (SC-60) or less or Class CC 30A (LP-CC-30, FNQ-R-30, KTK-R-30) or less are suitable for all SCCR in this table.
These blocks available in 1 or 3 poles. PDB321 available in 1, 2, and 3 poles.
Part Number:
Example: PDB204-1 = single pole
PDB204-3 = three pole
60 200kA
100 200kA
60 100kA
100 200kA
60 100kA
100 200kA
60 100kA
100 200kA
60 100kA
1011 SB-BU09622
Page 9 of 23
Data Sheet 1049