Series PDB Power Distribution Blocks
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
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”
Mechanical
• Panel mount
• Flammability, UL 94V0
• Tin-plated AL connectors suitable for CU conductors
Series PDB
Terminal Copper Conductor Capability
Line
Load
Configuration
Part
Number
PDB204-1
PDB204-3
PDB220-1
PDB220-3
PDB280-1
PDB280-3
PDB321-1
PDB321-2
PDB321-3
PDB323-1
PDB323-3
PDB370-1
PDB370-3
PDB371-1
PDB371-3
Openings per Pole
Amps
Wire Range
Wire Range
Line
175A
2/0 to 8 AWG
2/0 to 8 AWG
Load
Short-Circuit Current Rating Data
Conductors
Max Fuse Class & Amp**
Line
AWG or
kcmil
Load
AWG or
kcmil
J
LPJ
T
JJS
JJN
RK1
LPS-RK
LPN-RK
RK5
FRS-R
FRN-R
SCCR
2/0 to 8
2/0 to 8 200
4 to 12
200
175
200
200
400
400
175
400
400
175
400
175
200
200
175
200
200
400
400
175
400
400
175
400
175
400
400
175
200
200
100
100
100
200
400
100
200
400
100
200
100
200
400
100
60
60
60
60
60
100
100
60
100
100
60
100
60
100
100
60
200kA
200kA
100kA
50kA
200kA
200kA
100kA
100kA
200kA
100kA
100kA
200kA
100kA
200kA
100kA
100kA
175A
2/0 to 8 AWG
4 to 14 AWG
2/0 to 8
4 to 14
175A
2/0 to 8 AWG
1/4-20 X 3/4 STUD
2/0 to 8
Stud
4 to12
4 to 14
175A
2/0 to 8 AWG
4 to 14 AWG
2/0 to 8
310A 350kcmil to 4 AWG
4 to 12 AWG
350 to 4
4 to 8
4 to 12
4 to 8
310A 350kcmil to 4 AWG
4 to 14 AWG
350 to 4
4 to 14
310A 350kcmil to 4 AWG
(6) 2 to 12 AWG
(3) 1/0 to 12
350 to 4
1/0 to 6 400
400
4 to 12
175
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
07-05-07
BU-SB07255
Form No. PDB
Page 9 of 23
Data Sheet #1049
COOPER [ COOPER BUSSMANN, INC. ]
