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Rev: 121818
POWR-GARD® Blocks and Holders Datasheet
1 of 10
GDB SERIES TOUCH-SAFE POWR-BLOKS™
Global Distribution Blocks
Features/Benefits
• Global part meeting UL standards
• Space saving design
• Integrated touch-safe cover to increase safety
• IP20 protection rating
• Mounts to DIN rail or panels
• Reliable brass connections for excellent continuity
in a smaller design
Specifications
Voltage Rating UL: 600 VAC/VDC
Ampere Rating 80 – 335 A
Material Thermoplastic
Connector GDBxxxx: Brass
GDBAxxxx: Aluminum (Tin Plated)
Flammability Rating UL94 V-0
Approvals UL Recognized (File: E309688, E171395)
UL Listed (File: E482231)
CSA Certified (File: 700111)
Operating Temperature -40°C to +90°C
Storage Temperature -40°C to +100°C
Relative Humidity 50% @ 40°C, 90% @ 20°C
Environmental RoHS compliant
Description
POWR-BLOKSTM Global Distribution Blocks add safety and
mounting versatility to our distribution block solutions. The
Global Distribution Blocks are approved to UL standards.
The Global Distribution Blocks are IP20 finger safe to reduce
the risk of contact and eliminate the need for block or panel
covers. Installation is quick and easy, all blocks can be
mounted on DIN rail or to the panel.
Electrical Specifications
CATALOG/
ORDERING
NUMBER
POLES
AMPS
WIRE RANGE OVERCURRENT PROTECTION
FUSE REQUIRED SCCR IN
RMS
SYM
AMPS
AGENCY
APPROVALS
LINE
CONNECTION LOAD CONNECTION
LINE OPENINGS
PER POLE
OPENINGS
PER POLE LOAD CLASS J
(JTD_ID)
Class T
(JLLN,
JLLS)
Class RK1
(LLNRK,
LLSRK, KLNR,
KLSR)
Class RK5
(FLNR, FLSR,
IDSR)
CLASS G
(SLC)
CLASS CC
(CCMR,
KLDR,
KLKR)
UR
cURus
UL
CSA
GDB60801Z 1 80 1 #8 - #4 6#8 - #4 80 - - - - - 100,000 •
#10 - #14 - - - - -
GDB61151Z 1 115 1 #8 - #2 6#14 - #4 125 - - - - - 100,000 •
#10 - #6 - - - - -
GDB61153Z 3 115 1 #8 - #2 6 #14 - #4 125 - - - - - 100,000 •
GDBAD211Z 1 115 1 #14 - #2 1 #14 - #2 175 225 100 60 60 30 100,000 • •
GDBAD241Z 1 115 1 #10 - #2 4#14 - #10 125 200 100 30 60 30 65,000 • •
GDB61601Z 1 160 1 #8 - 2/0 6#14 - #4 175 - - - - - 100,000 •
GDB61753Z 3 175 1 #8 - 2/0 6#14 - #4 175 - - - - - 100,000 •
GDBAD421Z 1 200 1 #8 - 3/0 1#8 - 3/0 225 225 200 60 60 30 100,000 • •
GDBAP421Z 1 200 1 #8 - 3/0 1#8 - 3/0 225 225 200 60 60 30 100,000 • •
GDBAD451Z 1 200 1 #8 - 3/0 4#8 - #2 225 225 200 60 60 30 100,000 • •
#8 - 3/0 #14 - #8 100 110 100 30 60
GDBAP451Z 1 200 1 #8 - 3/0 4#8 - #2 225 225 200 60 60 30 100,000 • •
#8 - 3/0 #14 - #8 100 110 100 30 60
GDB63101Z 1 310 1 3/0 - 350
kcmil 11
#14 - #2
350 100,000 •#14 - #6 - - - - -
#14 - #8
GDBAD741Z 1 335 1
#6 - 400
kcmil 8#14 - #2 - - - - - - 10,000 • •
#14 - 3/0
Web Resources
For additional information visit Littelfuse.com/gdb
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Rev: 121818
POWR-GARD® Blocks and Holders Datasheet
2 of 10
Mechanical Specification
CATALOG/
ORDERING
NUMBER
POLES
AMP
RATING
PER POLE
(UL)
LINE CONNECTION LOAD CONNECTION
OPENINGS
PER POLE
OPENING
DIAMETER SCREW TYPE WIRE
RANGE
TORQUE
LB-IN (NM)
OPENINGS
PER POLE
OPENING
DIAMETER
SCREW
TYPE
WIRE
RANGE
TORQUE
LB-IN (NM)
GDB60801Z 1 80 1 0.28 in
(7.0 mm) Slotted #8 – #4
(Cu) 13.5 (1.5) 6
2x 0.28 in
(2x 7.0 mm) Slotted
#8 - #4
(Cu) 13.5 (1.5)
4x 0.18 in
(4x 4.5 mm)
#10 - #14
(Cu) 7.2 (0.8)
GDB61151Z 1 115 2 0.39 in
(10.0 mm) Hex 4 mm
#8 – #2
(Cu) 31 (3.5) 6 0.28 in
(7.0 mm) Slotted #14 – #4
(Cu) 17.5 (2)
#10 – #6
(Cu)
GDB61153Z 3 115 1 0.39 in
(10.0 mm) Hex 4mm #8 - #2 (Cu) 31 (3.5) 60.25 in
(6.5 mm) Hex 3mm #14 - #4
(Cu) 17.5 (2)
GDBAD211Z 1 115 1 0.323 in
(8.2 mm) Hex 4 mm #14 - #2
(Cu/Al)
35 (4.0) #14 - #10
40 (4.5) #8
45 (5.1) #6 - #4
50 (5.6) #3 - #2
10.323 in
(8.2 mm) Hex 4 mm #14 - #2
(Cu/Al)
35 (4.0) #14 - #10
40 (4.5) #8
45 (5.1) #6 - #4
50 (5.6) #3 - #2
GDBAD241Z 1 115 1 0.312 in
(7.9 mm) Hex 4 mm #14 - #2
(Cu/Al)
35 (4.0) #14 - #10
40 (4.)5 #8
45 (5.1) #6 - #4
50 (5.6) #3 - #2
40.159 in
(4.0 mm) Hex 2 mm #14 - #10
(Cu/Al) 7 (0.8)
GDB61601Z 1 160 1 0.49 in
(12.5 mm) Hex 5mm #8 - 2/0
(Cu) 35.5 (4) 6 0.28 in
( 7.0 mm) Slotted #14 - #4
(Cu) 17.5 (2.0)
GDB61753Z 3 175 1 0.47 in
(12.0 mm) Hex 5mm #8 - 2/0
(Cu) 35.5 (4) 6 0.25 in
( 6.5 mm) Hex 3mm #14 - #4
(Cu) 17.5 (2.0)
GDBAD421Z 1 200 1 0.531 in
(13.5 mm) Hex 6mm #14 - 3/0
(Cu/Al)
50 (5.6) #14 - #10
180 (20.3) #8 - 3/0 10.531 in
(13.5 mm) Hex 6mm #14 - 3/0
(Cu/Al)
50 (5.6) #14 - #10
180 (20.3) #8 - 3/0
GDBAP421Z 1 200 1 0.531 in
(13.5 mm) Hex 6mm #14 - 3/0
(Cu/Al)
50 (5.6) #14 - #10
180 (20.3) #8 - 3/0 10.531 in
(13.5 mm) Hex 6mm #14 - 3/0
(Cu/Al)
50 (5.6) #14 - #10
180 (20.3) #8 - 3/0
GDBAD451Z 1 200 1 0.531 in
(13.5 mm) Hex 6mm #14 - 3/0
(Cu/Al)
50 (5.6) #14 - #10
180 (20.3) #8 - 3/0 40.313 in
(7.9mm) Hex 5mm #14 - #2
(Cu/Al)
40 (4.5) #14 - #10
50 (5.6) #8 - #2
GDBAP451Z 1 200 1 0.531 in
(13.5 mm) Hex 6mm #14 - 3/0
(Cu/Al)
50 (5.6) #14 - #10
180 (20.3) #8 - 3/0 40.313 in
(7.9mm) Hex 5mm #14 - #2
(Cu/Al)
40 (4.5) #14 - #10
50 (5.6) #8 - #2
GDB63101Z 1 310 1 0.75 in
(19.0 mm) Hex 8mm 3/0 - 350
kcmil (Cu) 230 (26.0) 11
2x 0.35 in
(2x 9.0mm)
Slotted
#14 - #2
(Cu) 31 (3.5)
5x 0.25 in
(5x 6.5mm)
#14 - #6
(Cu) 18 (2.0)
4x 0.21 in
(4x 5.3mm)
#14 - #8
(Cu)
GDBAD741Z 1 335 1 0.516 in
(13.1 mm)
Hex
8mm & 6mm
#14 - 400
kcmil
(Cu/Al)
40 (4.5)#14 - #8
80 (9.0) #6 - #2
80.375 in
(9.5 mm) Hex 5mm #14 - #2
(Cu/Al)
40 (4.5) #14 - #8
120 (13.6) #1 - #3/0
275 (31.10 #6 - #1/0
375 (42.4) 2/0 - 400
kcmil
80 (9.0) #6 - #2
GDB SERIES TOUCH-SAFE POWR-BLOKS™
Global Distribution Blocks
littelfuse.com © 2018 Littelfuse Products
Rev: 121818
POWR-GARD® Blocks and Holders Datasheet
3 of 10
GDB SERIES TOUCH-SAFE POWR-BLOKS™
Global Distribution Blocks
4x Ø 0.18
(4x Ø 4.5)
3x Ø 0.24
(3x Ø 6)
Ø 0.22
(Ø 5.5)
0.08
(2)
0.75
(19)
2.58
(65.5)
1.06
(27)
0.20
(5)
0.16
(4)
0.24
(6)
0.26
(6.5)
0.39
(10)
1.22
(31.1)
1.84
(46.8)
0.11
(2.7)
1.38
(35)
0.69
(17.5)
0.75
(19)
0.20
(5.0)
Ø 0.22
(Ø 5.5)
1.80
(45.8)
0.24
(6.0) 0.26
(6.5)
1.06
(27)
0.20
(5.0)
0.16
(4.0)
2.9
(74)
0.53
(13.5)
1.67
(42.3) 1.38
(35)
0.69
(17.5)
0.05
(1.3)
0.39
(10)
Ø 0.22
(Ø 5.5)
GDB60801Z
GDB61151Z
Dimensions Inches (mm)
0.98
(25)
3.62
(92)
3.16
(80.3)
1.38
(35)
0.08
(2.0)
2.0
(50)
1.4
(35)
0.24
(6.0)
GDB61601Z
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Rev: 121818
POWR-GARD® Blocks and Holders Datasheet
4 of 10
1.50
(38)
2.80
(71)
3.14
(80)
0.54
(13.8)
1.69
(43)
2.07
(52.5)
0.20
(5.2)
2.07
(52.5)
2.28
(58)
0.20
(5.2)
0.43
(11.2)
GDB61153Z
GDB61753Z
GDB SERIES TOUCH-SAFE POWR-BLOKS™
Global Distribution Blocks
Dimensions Inches (mm)
1.75
(44.5)
1.93
(49)
0.85
(21.5)
0.09
(2.3)
3.74
(95)
3.34
(84.8)
0.69
(17.5)
0.98
(25)
0.09
(2.2)
1.38
(35)
GDB63101Z
littelfuse.com © 2018 Littelfuse Products
Rev: 121818
POWR-GARD® Blocks and Holders Datasheet
5 of 10
GDB SERIES TOUCH-SAFE POWR-BLOKS™
Global Distribution Blocks
GDBAD211Z
GDBAD241Z
Dimensions Millimeters (in)
littelfuse.com © 2018 Littelfuse Products
Rev: 121818
POWR-GARD® Blocks and Holders Datasheet
6 of 10
GDB SERIES TOUCH-SAFE POWR-BLOKS™
Global Distribution Blocks
GDBAD421Z
Dimensions Millimeters (in)
littelfuse.com © 2018 Littelfuse Products
Rev: 121818
POWR-GARD® Blocks and Holders Datasheet
7 of 10
GDB SERIES TOUCH-SAFE POWR-BLOKS™
Global Distribution Blocks
GDBAP421Z
Dimensions Millimeters (in)
littelfuse.com © 2018 Littelfuse Products
Rev: 121818
POWR-GARD® Blocks and Holders Datasheet
8 of 10
GDB SERIES TOUCH-SAFE POWR-BLOKS™
Global Distribution Blocks
Dimensions Millimeters (in)
GDBAD451Z
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Rev: 121818
POWR-GARD® Blocks and Holders Datasheet
9 of 10
GDBAP451Z
GDB SERIES TOUCH-SAFE POWR-BLOKS™
Global Distribution Blocks
Dimensions Millimeters (in)
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Rev: 121818
POWR-GARD® Blocks and Holders Datasheet
10 of 10
GDBAD741Z
GDB SERIES TOUCH-SAFE POWR-BLOKS™
Global Distribution Blocks
Dimensions Millimeters (in)
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products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/product-disclaimer.
