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NL4FXX-W-L-50 front view NL4FXX-W-L-50 rear view NL4FXX-W-l-50 side view R NL4FXX-W-L-50 side view L
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neutrik / Products / speakON® Loudspeaker Connectors / speakON® Cable Connectors / FXX series / NL4FXX-W-L-50

NL4FXX-W-L-50

Download Data Sheet

To mark this milestone, we proudly present our 50th Anniversary Special Edition

speakON connectors are the industry-standard for loudspeaker connections. This product series offers extremely reliable and robust cable connectors with a proven twist lock system. speakON cable connectors feature solid contacts with screw-type terminals including a stranded wire protection.

Features & Benefits
  • Up to 37 A rms current rating    
  • Easy to assemble because the strain relief locks with the insert mechanically and aligns with the housing     
  • Ergonomic design with slip-proof two-component molded housing    
  • Unique Neutrik locking bushing and strain relief for cable diameters 10 mm to 16 mm    
  • Superior NEUTRIK quality standard, extremely robust and reliable    
  • Easy and reliable twist lock system    
  • Improved kink protection by two-component bushing
Downloads
Drawing NL4FXX-W-L-50 (PDF)
pdf - 785.53 KB
Drawing NL4FXX-W-L-50 (DFX)
dxf - 3.27 MB
3D Drawing NL4FXX-W-L-50
stp - 7.03 MB
Assembly instruction - speakON NL2FXX-W-x & NL4FXX-W-x
pdf - 5.33 MB
Certificate_ETL_104216254ATL-001A _REV250411_ATM
pdf - 115.27 KB
Certificate_ENEC_40052110 (2025-05-27)
pdf - 296.42 KB
Video
https://www.youtube.com/watch?v=rLFbL7SahYQ

Technical Information

Product
Title NL4FXX-W-L-50
Connector series speakON 4 pole
Electrical
Contact resistance ≤ 2 mΩ
Dielectric strength 2.8 kVac
Insulation resistance > 10 GΩ (initially)
Number of electrical contacts 4
Rating Europe IEC 61984: 37 A 250 V AC
Rating USA UL1977: 35 A 250 V AC
Rating Canada CSA C22.2 No.182.3: 24 A 250 V AC
Attention: This product is strictly not intended for use as an AC or DC power supply connector!
CAUTION: NOT FOR INTERRUPTING CURRENT
Mechanical
Cable O.D. 10 - 16 mm
Lifetime typically 5’000 mating cycles
Wiresize (mm²) 1.5 – 4 mm²
Wiresize (AWG) 17 – 11 AWG
Locking device Twist lock
Termination screw type terminals
Material
Contact plating Ag
Contacts Copper Alloy
Insert Polyamide (PA6.6)
Locking element Polyamide (PA 66)
Shell Polyamide (PA6) / TPE
Strain relief Polyketone
Bushing Polypropylene / TPE
Environmental
Temperature range -33 °C to +80 °C
Protection class IP20
Flammability acc. to UL94 V-0
Accessories
audio
speakCON_XXS_persp front reihe_RGB_WEB.png
XXS-* and XXL-*

Colored bushing for speakON NL4FXX-W* and NL2FXX-W-S. This Products are only to use with Neutrik speakON from the FXX series.

HTLACB.png
HTLACB

Hand tool for tightening the bushing of the powerCON TRUE1 TOP, FXX and speakON FXX series

HTLACA View 2.png
HTLACA

Hand tool for tightening the bushing of the powerCON TRUE1 TOP, FXX and speakON FXX series

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