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ManualsBrandsLittelfuse ManualsConnectors310A,600V,Power Distribution Block

Products

Rev: 2-B-051818

POWR-GARD

Blocks and Holders Datasheet

1 of 8

Connectors

Box lug connectors are designed for use with a single or

multiple, solid or class B or C stranded conductor. For UL

approved use of more than one conductor per connector

opening, contact Littelfuse Technical Service. Manufacturers

of cable ter minations can furnish crimp-on sleeves for ﬁne

stranded conductors which permit these conductors to be

used with box lugs.

Ampere Ratings

The ampere rating per pole for power distribution blocks is

based on the line ampacity of 75°C insulated conductors per

NEC

Table 310.16. If 60°C insulated conductors are used,

load must not exceed the ampacity of 60°C conductors.

Use of conductors rated in excess of 75°C is permitted (for

example 90°C), however, load must not exceed the ampacity

of 75°C conductors.

Speciﬁcations

Voltage Rating 600 V

Current Rating Based on NEC Table 310.16, using 75°C copper wire

SCCR Consult Factory

Material Phenolic rated at 150°C and Thermoplastic

rated at 125°C (LD1400 and LS1300 series only)

Connector Aluminum: Highly con duc tive aluminum, tin plated

Copper: Highly conductive copper, tin plated

Flammability Rating UL94 V-0

Approvals UL Recognized - 0LD/0LS Series (File: E171395)

LFD/LFS Series (File: E309688)

CSA Certiﬁed - 0LD/0LS Series (File: LR700111)

LFD/LFS Series (File: 007316_0_000)

UL Listed - 0LD57xxxx (File: E482231)

Environmental RoHS compliant, Lead (Pb) free

Ordering Information

See Selection Guide on next page

Web Resources

For dimension, CAD and 3-D drawings, visit:

Littelfuse.com/powrbloks

POWR-BLOKS

Distribution Blocks • Splicer Blocks • Covers

Description

POWR-BLOKS power distribution blocks offer a safe,

convenient way of splicing cables, providing a ﬁxed junction

tap-off point or splitting primary power into secondary

circuits. Lx2xxx-DIN series offers integral DIN-Rail mount

and an optional hinged safety cover.

Optional power distribution block covers provide protection

against accidental shorting between poles caused by

loose wires, tools, or other conductive material. They also

protect personnel from accidentally contacting energized

connectors.

Applications

Typical applications include heating, air conditioning and

refrigeration systems, el e va tor systems, material handling

equipment, control panels, motor controls, switchgear,

and anywhere power needs to be distributed to more

than one load.

Hinged Plastic Covers

Clear Plastic Covers

Summary of content (8 pages)

PAGE 1
POWR-GARD® Blocks and Holders Datasheet POWR-BLOKS Distribution Blocks • Splicer Blocks • Covers Connectors Box lug connectors are designed for use with a single or multiple, solid or class B or C stranded conductor. For UL approved use of more than one conductor per connector opening, contact Littelfuse Technical Service. Manufacturers of cable terminations can furnish crimp-on sleeves for fine stranded conductors which permit these conductors to be used with box lugs.
PAGE 2
POWR-GARD® Blocks and Holders Datasheet POWR-BLOKS 175 2 175 3 175 1 175 2 175 3 175 Adder 310 3 310 2 310 3 335 335 380 335 335 380 335 335 335 350 350 350 350 350 350 380 380 380 380 380 380 380 380 380 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 AL CU CU AL AL AL AL AL AL AL AL AL CU CU AL AL LUG TYPE WIRE RANGE TORQUE RANGE 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Slotted Slotted 5/32" Hex Slotted 5/16" Hex 3/16" Hex 3/16" Hex 3/16" Hex 3/16" Hex 3/16" Hex – 3/16" Hex 3/16" H
PAGE 3
POWR-GARD® Blocks and Holders Datasheet POWR-BLOKS 420 1 420 3 420 1 420 2 510 510 510 760 760 760 760 760 760 760 760 760 760 760 760 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 CU 760 3 840 TORQUE RANGE 1 1 1 1 1 1 3/8" Hex 3/8" Hex 3/8" Hex Slotted Slotted 3/8" Hex 500kcmil- #4 500kcmil- #4 500kcmil- #4 500kcmil - #4 500kcmil - #4 500kcmil - #4 375 in-lbs 375 in-lbs 375 in-lbs 375 in-lbs 375 in-lbs 375 in-lbs AL 1 1/2" Hex 600kcmil- #2 375 in-lbs AL 1 1/2" Hex 600kcmil- #2 375 in-lbs 1 1/
PAGE 4
POWR-GARD® Blocks and Holders Datasheet POWR-BLOKS 115 2 115 115 115 115 3 4 1 2 115 3 1 Slotted 150 150 150 175 175 175 175 175 175 1 2 3 1 2 3 1 2 3 1 1 1 1 1 1 1 1 1 3/16" Hex 3/16" Hex 3/16" Hex 5/16" Hex 5/16" Hex 3/16" Hex 5/16" Hex 5/16" Hex 5/16" Hex LUG TYPE WIRE RANGE TORQUE RANGE 1 Slotted #2 - #14 35-50 in-lbs 1 CONNECTOR IMAGE *PLASTIC COVER ORDERING NUMBER FIGURE 1 OPENINGS PER POLE 115 CONNECTOR IMAGE LOAD CONNECTION OPENINGS PER POLE LINE CONNECTION AMP PER POL
PAGE 5
POWR-GARD® Blocks and Holders Datasheet POWR-BLOKS Distribution Block and Splicer Block Outline Drawings Dimensions Inches (mm) Figure 1 2-pole 3-pole Figure 2 3-pole Figure 3 1-pole littelfuse.
PAGE 6
POWR-GARD® Blocks and Holders Datasheet POWR-BLOKS Distribution Block and Splicer Block Outline Drawings Dimensions Inches (mm) Figure 4 1-pole 2-pole 3-pole Adder Figure 5 1-pole 2-pole 3-pole Figure 6 1-pole littelfuse.
PAGE 7
POWR-GARD® Blocks and Holders Datasheet POWR-BLOKS Distribution Block and Splicer Block Outline Drawings Dimensions Inches (mm) Figure 7 1-pole 2-pole 3-pole Figure 8 1-pole 3-pole Figure 9 1-pole littelfuse.
PAGE 8
POWR-GARD® Blocks and Holders Datasheet POWR-BLOKS REV A1 REVISION DESCRIPTION CREATED FOR DATASHEET UPDATE MRY DATE 12/7/17 Distribution Block and Splicer Block Outline Drawings Dimensions Inches (mm) Figure 10 R.10 X .06 [2.6 X .15] THRU TYP. 10.73 [0.42] 16.13 [0.64] 48.39 [1.91] 10.73 [0.42] 10.73 [0.42] 5.03 [0.20] 35.98 [1.42] 58.12 49.07 [2.29] [1.93] 7.11 [0.28] 41.20 [1.62] 17.78 [0.70] 14.20 [0.56] 21.46 [0.85] 1-pole 1-pole 2-pole 2-pole 15.21 [0.60] 69.85 [2.75] 37.59 [1.