Power Distribution Blocks & Terminal Blocks with High
Short-Circuit Current Ratings
Table of Contents
Selection Table . . . . . . . . . . . . . . . . . . . . . . . . .
Power Distribution Blocks
Terminal Blocks
Page
...
2
PDBFS Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
PDB Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12
16XXX-UL Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-15
14002-3-UL, TB300-03SP-UL, NDN63-WH-UL,
NDN111-WH-UL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-18
Application Notes
. . . . . . . . . . . . . . . . . . . . . . . .
19-23
TOOLS TO ASSIST
Panel Layout
2D and 3D CAD files for some products to facilitate panel
layouts found at www.cooperbussmann.com
Engineering Services for SCCR
OSCAR™ Compliance Software Eliminates the Guesswork in
Assembly Short-Circuit Current Rating (SCCR) Calculations.
The Cooper Bussmann innovative OSCAR™ Compliance
Software assists customer compliance with new Code and
standards requirements for short-circuit current ratings as they
relate to industrial control panels, equipment and assemblies.
Go to www.cooperbussmann.com
SCCR Panel Design Review for Improving Your Assembly
SCCR. If your SCCR needs improvement, contact the Cooper
Bussmann team for a design review. We guarantee our panel
SCCR review service for UL508A Supplement SB pre-certifica-
tion.
Other Application Information on SCCR
Publications:
• Advanced Guide To Understanding Assembly Short-Circuit
Current Rating
• Simplified Guide To Understanding Short-Circuit Current
Rating – Find It, Fix It, Forget it
• SPD (Selecting Protective Devices) Sections on Industrial
Control Panels and also Conductor & Terminations.
Technical Assistance
Application Engineering
Application Engineering assistance is available to
customers. The Application Engineering team is staffed by
engineers and available by phone with technical and
application support Monday – Friday, 8:00 a.m. – 5:00 p.m.
Central Time.
Application Engineering can be reached via phone, fax or
email:
• Phone: 636-527-1270
• Fax: 636-527-1607
• E-mail: fusetech@cooperbussmann.com
Online Resources
Visit www.cooperbussmann.com for the following
resources:
• Arc-flash calculator
• OSCAR™ compliance software
• Training modules
Services
• Engineering
• Training
• Testing
Contact us for more information on Services:
• Phone: 636-207-3294
• E-mail: services@cooperbussmann.com
07-05-07
BU-SB07255
Form No. PDB
Page 1 of 23
Data Sheet #1049
Selection Table for SCCR Power Distribution Blocks and
Terminal Blocks
Short-Circuit Current Rated Power Distribution
Blocks
Cooper Bussmann offers three distinctly different styles of
short-circuit current rated power distribution blocks (PDBs)
and terminal blocks (TBs) to match different application
needs. The differences are whether the power
distribution blocks are enclosed or not, and whether they are
UL1953 Listed PDBs or UL1059 Recognized TBs, which have
different minimum spacing requirements. The table on this
page can assist in the selection of the right series for your
application requirements.
Why these are important?
Assembly short-circuit current ratings (SCCRs) are now
required in the 2005 NEC
®
and UL508A Listed Industrial
Control Panels. Marking the SCCR on Industrial Control
Panels (NEC
®
409.110), Industrial Machinery Electrical
Panels (NEC
®
670.3(A)), and HVAC equipment (NEC
®
440.4(B)) is now required by the National Electrical Code.
PDBs or TBs not marked with a SCCR are typically one of
the weakest links and may limit an assembly to no more than
10kA SCCR. The PDBFS and PDB Series have increased
spacing required where used in feeder circuits in equipment
listed to UL508A (UL1059 TBs must be evaluated for proper
spacings). Also, for building wiring systems, the PDBFS
Series and PDB Series power distribution blocks can be used
to meet the new 2005 NEC
®
requirements in section
376.56(B) for PDBs in wireways.
More application info rmation on pages 19-23.
Selection Table
Product
Catalog
Page
High
Enclosed SCCR*
Spacing**
1” Air
2” Surface
Industrial
Control
Panels
UL 508A
Branch
Circuit
Yes
Industrial
Control
Panels
UL 508A
Feeder
Circuit
Yes
HVAC
UL
1995
Wireways
NEC
®
376.56(B)
(Requires
UL 1953)
Yes
Yes
w/optional
cover
No
UL
Series PDBFS
3
UL 1953 Listed
Power Distribution Blocks
UL 1953 Listed
Power Distribution Blocks
UL 1059 Recognized
Terminal Blocks
Yes
†
Yes
Yes
Yes
Series PDB
Series
16XXX_UL
NDN63-WH-UL,
NDN111-WH-UL,
14002-3-UL,
TB300-03SP-UL
9
No***
Yes
Yes
Yes
Yes
Yes
13
No***
Yes
No****
Yes
No****
Yes
16
Ul 1059 Recognized
Terminal Blocks
No
Yes
No
Yes
No
Yes
No
† IP-20 finger-safe under specific conditions, see datasheet page 8.
*When protected by proper fuse class with maximum ampere rating specified or smaller.
** See
PDB Spacing Requirements for Equipment
table below.
***Optional covers are available. Not IP-20, but provide a safety benefit.
****No, except: Yes, if single pole units installed with proper spacings.
PDB & TB Minimum Spacing
Requirements for Equipment
UL Standard
Spacing between
Spacing between
live parts of
live parts and
opposite polarity
grounded parts
or enclosure
Through air Over surface
@600V
@600V
@600V
Series PDBFS
Series PDB
508A Feeder
Circuits
508A Branch
Circuits
1995 HVAC
1˝
3
2˝
1
1˝
1
⁄
8
˝
3
⁄
8
˝
⁄
2
˝
1
⁄
2
˝
⁄
2
˝
1
⁄
2
˝
Note: Refer to Specific UL standards for complete spacing details.
Magnum Terminal Blocks
07-05-07
BU-SB07255
Series 162 and 163
Form No. PDB
Page 2 of 23
Data Sheet #1049
Series PDBFS Enclosed Power Distribution Blocks
Feature/Benefits
• Enclosed for enhanced
safety; IP-20 finger-safe
under specific conditions,
see page 8
• High Short-Circuit Current
Ratings up to 200,000A:
PDBs do not have to be
a weak link in achieving a
high SCCR for an
industrial control panel
• Suitable for installation in
wireways 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” over surface
• Small footprint saves panel space. Stack side by side and still
meet 1˝ and 2˝ spacing requirements
• For 2D and 3D CAD drawings visit www.cooperbussmann.com
Agency/Standards
• UL Listed 1953, Guide QPQS, File E256146
• CSA Certified, Class 6228-01, File 15364
• CE component IEC 60947-7-1
• IEC 60529, IP-20 (Finger Safe) under specific conditions,
see page 8
Electrical
• 600Vac or dc (UL 1953), 690Vac or dc (IEC)
• Short-Circuit Current Ratings up to 200kA, see table below
• Ampacities up to 760 Amps
• 75ºC rated connectors
• CU Wire range 14 AWG to 500 kcmil or 2.5 to 240 mm
2
Mechanical
• DIN rail or panel mount; PDBFS330 & PDBFS504 panel
mount only
• Captive termination screws; screws do not get misplaced
• Wire ready: captive termination screws shipped backed out
to save time on conductor installation
• Sliding DIN rail latch for easy mounting
• Single pole, gang mountable for multiple pole applications
with interlocking dovetail accessory (optional Part 2A1279)
One pin interlocks two units, two pins to interlock three units
(see illustration on page 6)
• Flammability, UL 94V0
• Tin-plated AL connectors suitable for CU conductors
• Elongated hole for panel mounting; easier mounting with
greater flexibility in matching up with drilled panel holes
• DIN rail end anchors required to prevent damage to block
when torquing, anchors not offered by Cooper Bussmann
Series PDBFS
Electrical
Catalog
Number
(All Single
Pole)
Terminal Copper Conductor Capability
Line
Load
Configuration
Openings per Pole
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
Amps
Wire Range
2/0 to 8 AWG
70 to 10 mm
2
2/0 to 8 AWG
70 to 10 mm
2
Wire Range
Line
Load
2/0 to 8 AWG
70 to 10 mm
2
4 to 14 AWG
25 to 2.5 mm
2
SCCR
PDBFS204
175A
2/0 to 8
2/0 to 8 200
4 to 12
200
175
200
200
200
175
200
400
400
200
175
600
600
200
600
800*
800*
800*
600
100
100
100
100
200
200
100
100
400
400
100
400
600
600
600
400
60
60
60
60
100
100
30
30
200
200
30
200
200
400
600
200
200kA
200kA
100kA
50kA
200kA
200kA
50kA
100kA
200kA
50kA
50kA
200kA
100kA
200kA
100kA
100kA
PDBFS220
175A
2/0 to 8
4 to 14
PDBFS303
310A
350kcmil to 6 AWG 350kcmil to 6 AWG
150 to 16 mm
2
150 to 16 mm
2
2 to 14 AWG
35 to 2.5 mm
2
4 to 14 AWG
25 to 2.5 mm
2
350 to 6
350 to 6 400
2 to 6
400
200
175
600
600
200
600
PDBFS330
500kcmil to 6 AWG
380A
240 to 16 mm
2
570A
300kcmil to 4 AWG
150 to 12 mm
2
500 to 6
300
300 to 4
350
350 to 4
500
500 to 6
2 to 14
4 to 8
4
4 to 14
350
PDBFS377
PDBFS500
620A
350kcmil to 4 AWG 350kcmil to 4 AWG
185 to 12 mm
2
185 to 12 mm
2
500kcmil to 6 AWG 500kcmil to 6 AWG
240 to 16 mm
2
240 to 16 mm
2
350 to 4 600
600
600
500 to 6 600
500
PDBFS504
760A
Ampacities 75C per NEC® Table 310.16 and UL508A Table 28.1
*Class L 800A (KRP-C 800_SP) or less fuses suitable for this particular SCCR case.
** 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 SCCRs in this table.
07-05-07
BU-SB07255
Form No. PDB
Page 3 of 23
Data Sheet #1049
Series PDBFS Enclosed Power Distribution Blocks
Dimensions in[mm]
Height
C
D
2.146[54.50] 3.550[90.17]
2.146[54.50] 3.550[90.17]
2.874[73.00] 4.475[113.67]
2.950[74.93] 4.475[113.67]
2.933[74.50] 4.475[113.67]
2.598[66.00] 4.475[113.67]
3.150[80.00] 4.475[113.67]
Item
1
2
3
4
5
6
7
Part No.
PDBFS204
PDBFS220
PDBFS303
PDBFS330
PDBFS377
PDBFS520
PDBFS504
Width
A
1.030[26.16]
1.030[26.16]
1.550[39.37]
1.550[39.37]
1.875[47.62]
2.380[60.45]
2.560[65.02]
Length
B
3.372[94.80]
3.372[94.80]
4.665[118.50]
4.665[118.50]
4.665[118.50]
4.665[118.50]
4.665[118.50]
E
2.905[73.79]
2.905[73.79]
3.810[96.77]
3.810[96.77]
3.810[96.77]
3.810[96.77]
3.810[96.77]
F
0.197[5.00]
0.197[5.00]
0.197[5.00]
0.197[5.00]
0.197[5.00]
0.197[5.00]
0.197[5.00]
G
H
0.197[5.00]
N/A
0.197[5.00]
N/A
0.236[6.00]
N/A
0.236[6.00]
N/A
0.236[6.00]
N/A
0.236[6.00]
N/A
0.236[6.00] 46.00[1.811]
PDBFS204
PDBFS220
C
PDBFS303
PDBFS330
07-05-07
BU-SB07255
Form No. PDB
Page 4 of 23
Data Sheet #1049
Series PDBFS Enclosed Power Distribution Blocks
PDBFS377
PDBFS500
PDBFS504
07-05-07
BU-SB07255
Form No. PDB
Page 5 of 23
Data Sheet #1049
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