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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
