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NL4FXX-W-L-50
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
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
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
Hand tool for tightening the bushing of the powerCON TRUE1 TOP, FXX and speakON FXX series
HTLACA
Hand tool for tightening the bushing of the powerCON TRUE1 TOP, FXX and speakON FXX series