Locking Fork Non-Insulated Terminal
Locking Fork Non-Insulated Terminal
TONFUL LSNB locking fork non-insulated terminals feature an open fork with inward retaining features. Compare the model-specific bolt diameter and wire range before selecting.
- LSNB series · 14 original catalog models
- Tin-plated copper · non-insulated construction
- Model-specific wire range and dimensions
- Product selection, samples and packaging reviewed with your enquiry
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Overview
TONFUL LSNB locking fork non-insulated terminals feature an open fork with inward retaining features. Compare the model-specific bolt diameter and wire range before selecting. The original catalog includes 14 models; all model references and table values are retained below.
The terminal is non-insulated. Confirm insulation or enclosure requirements for the completed assembly against the application and approved design.
Features
- Tin-plated copper: material and finish retained from TONFUL’s original product information.
- Locking fork interface: match the contact geometry to your installation.
- Crimp connection: select tooling appropriate for the conductor and barrel.
- Model-specific dimensions: 14 original catalog models available for comparison.
Technical Specifications
| Parameter | Specification |
|---|---|
| Series | LSNB |
| Contact material | Copper |
| Plating | Tin |
| Insulation | Non-insulated |
| Interface | locking fork |
| Catalog models | 14 |
| Wire range and dimensions | See model-specific catalog tables below |
Where listed, current values apply to the catalog group, not every installation. Confirm voltage, temperature, environmental conditions and required documentation for your selected model.
Dimension
Dimensions are in millimeters unless otherwise indicated. Original model numbers, units and values are preserved. On small screens, scroll each table horizontally.
LSNB Catalog Group 1
Terminal Material: Copper Plating: Tin Cable size: 0.5-1.5mm²(A.W.G.22-16) Max Current: Imax=19A Thickness: 0.7mm
| Item NO. | USA Bolt No. | Bolt dia d2(mm) | Dimension(mm) | |||||
|---|---|---|---|---|---|---|---|---|
| B | F | L | E | DΦ | dΦ | |||
| LSNB1.25-3.5 | #6 | 3.7 | 6.4 | 6.5 | 16.0 | 4.8 | 3.4 | 1.7 |
| LSNB1.25-4S | #8 | 4.3 | 7.2 | 6.5 | 16.0 | |||
| LSNB1.25-4L | #8 | 4.3 | 8.1 | 6.5 | 16.0 | |||
| LSNB1.25-5S | #10 | 5.3 | 8.1 | 6.5 | 16.0 | |||
| LSNB1.25-5L | #10 | 5.3 | 9.5 | 6.5 | 16.0 | |||
LSNB Catalog Group 2
Terminal Material: Copper Plating: Tin Cable size: 1.5-2.5mm²(A.W.G.16-14) Max Current: Imax=27A Thickness: 0.8mm
| Item NO. | USA Bolt No. | Bolt dia d2(mm) | Dimension(mm) | |||||
|---|---|---|---|---|---|---|---|---|
| B | F | L | E | DΦ | dΦ | |||
| LSNB2-3.5 | #6 | 3.7 | 6.0 | 6.5 | 16.0 | 4.8 | 4.1 | 2.3 |
| LSNB2-4S | #8 | 4.3 | 7.2 | 6.5 | 16.0 | |||
| LSNB2-4L | #8 | 4.3 | 8.1 | 6.5 | 16.0 | |||
| LSNB2-5S | #10 | 5.3 | 8.1 | 6.5 | 16.0 | |||
| LSNB2-5L | #10 | 5.3 | 9.3 | 6.5 | 16.0 | |||
LSNB Catalog Group 3
Terminal Material: Copper Plating: Tin Cable size:4.0-6.0mm²(A.W.G.12-10) Max Current:Imax=48A Thickness:1.0mm
| Item NO. | USA Bolt No. | Bolt dia d2(mm) | Dimension(mm) | |||||
|---|---|---|---|---|---|---|---|---|
| B | F | L | E | DΦ | dΦ | |||
| LSNB5.5-3.5 | #6 | 3.7 | 8.3 | 7.0 | 18.2 | 6.0 | 5.6 | 3.4 |
| LSNB5.5-4 | #8 | 4.3 | 8.3 | 7.0 | 18.2 | |||
| LSNB5.5-5 | #10 | 5.3 | 9.0 | 7.0 | 18.2 | |||
| LSNB5.5-6 | 1/4 | 6.5 | 12.0 | 12.0 | 24.5 | |||

Selection Guide
Match conductor section and bolt diameter d2, then check the locking fork profile and dimensions against the receiving screw terminal. Confirm retention, assembly clearance and installation torque.
Use an appropriate non-insulated-terminal crimp tool. Confirm crimp settings, pull-out retention, inspection criteria and any required insulation before approving production.
Applications
Potential uses include equipment wiring and control-panel assemblies requiring a compatible locking fork interface. Product compatibility and qualification depend on the selected model and the approved assembly.
Ordering Information
Send the complete LSNB model number, conductor size, mating-interface details, application and order quantity. Include your sample, inspection and packaging requirements.
Explore TONFUL terminals and connectors or contact TONFUL Electric to discuss the selected model.
Product photographs are high-definition illustrative recreations of the original images. Confirm product configuration against an approved sample.



