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See all Multi-Wire Lugs

4 AWG Triple Wire Triple Barrel Mechanical Lug 4-14 AWG

Part No. Description & Information Purchase Options

3S4-3-21-28-HEX

4 AWG Lug

Wire Range Screw Type Bolt Size Mounting Hole Rating

1 to 69 pcs

$3.91/ea
or
70 pcs & up
$2.91/ea

or
400pcs

"full box"
$2.18/ea

4-14 AWG

1/8 Hex Socket

#10

.210

OR

Modify Your Mounting Holes

(per UL & CSA)

CU7AL

36S-4 multi wire multi barrel lug, stacker type, tiered lug, vertical lug, step lug

3S4-3-21-28-HEX-6-wires

Six Wire Application

3S4-3-21-28-HEX & S2-NB-2

Dual Interlocking Lugs/

Seven Wire Application

S2-NB-2 and 3S4-3-21-28-HEX

 

dimensions diagram

Dimensions

A: 2.44" (62.0mm)

B: 1.63" (41.4mm)

C: 0.41" (10.3mm)

See Mechanical Drawing for detailed dimensions

Two Wires Per Barrel

Wire Size AWG (mm2)

8

(8.37)

-

(6)

10

(5.26)

-

(4)

12

(3.31)

-

(2.5)

14

(2.08)

Code Copper Stranded Y - Y Y Y Y Y
Code Copper Solid - - Y Y Y Y Y
Aluminum Y - - - - - -
FLEX (B-K classes)* Y* - Y* Y* Y* Y* Y*

No mixing wire gauges.

*Only with use of single or twin UL Listed ferrule

 

3S4-3-21-28-HEX: 4 AWG triple wire lug, 4-14 AWG wire range. Stacker type, three tier lug, and multiple (dual) wires and FLEX wire, 8-14 AWG, G-K including mm2 class 5 (flex wire is only allowed with the use of UL Listed ferrules), 3 barrel, aluminum or copper wire, UL Listed at 600v - acceptable for use through 2000v,UL486 ZMVV Listed, UL508A SA1.1 Listed category, and CSA Certified. (2) two mounting bolt holes with clearance for #10 bolts or M5 bolts. International Hydraulics Inc. brand.

 

Use of Ferrules (UL Listed) on wires

 

drill your own mounting holes

DIY Modify Mounting Holes: Cat. No. S4-3 Style No. ALL

CSA and UL permitted field modification by customer per the Guide for Field Drilling Mounting Holes and the 3S4-3-21-28-HEX Print

 

IEC grounding sybol

 

WIRE CONNECTORS AND SOLDERING LUGS (ZMVV)

 

INSTALLATION

Wire connectors are intended for use in installations covered by ANSI/NFPA 70, ‘‘National Electrical Code’’ (NEC), and should be installed using the prescribed manufacturer’s installation instructions.

"Stacking of connectors (multiple connectors assembled using a single bolt, nut and washers) may be permitted where mechanical interference is reduced or eliminated with the use of offset tangs, stacking adapters, and the like. The surface contact area of the mounting tang should make complete contact with the mounting surface or the previously stacked connector tang."

 

Ref. UL White Book ZMVV section

 

ZMVV UL Whitebook Installation Information

 

ZMVV.E129884, C22.2
NO. 65-03

Per Wire in Power Distribution or Collection Mode:

85 Amp 75C Cu wire
95Amp 95C Cu wire 
65 Amp 75C Al Wire
75 Amp 90C Al Wire

 

For More Information Click the Icons Below
click for PDF document


Agency Label

UL Logo
CSA Logo
UL CSA Certificate Link

RoHS 10/10

   
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