Đầu nối móc không cách điện HNB (Loại TO)
HNB Non-Insulated Hook Terminals (TO Type) are bare copper terminals for bolted conductor connections. The series includes 13 models across 0.5–6 mm² conductor groups.
- Select by conductor section and the model-specific bolt-hole diameter.
- Compare B, F and L as well as barrel dimensions E, D and d.
- Catalog Imax is 19, 27 or 48 A depending on conductor group.
Overview
HNB Non-Insulated Hook Terminals (TO Type) are non-insulated copper crimp terminals with an open hook tip for a bolted connection. The source lists 13 models across three conductor groups. Each model has a specified bolt number, bolt-hole diameter and B, F and L dimensions.
Features
- Bare copper contact: the catalog identifies copper construction without an insulating sleeve.
- Model-specific fork geometry: B, F and L dimensions are given per model for the listed bolted connection.
- Group-specific barrel dimensions: E, D and d, material thickness and Imax vary by conductor group.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product type | Non-insulated hook terminal, TO type |
| Series | HNB |
| Listed models | 13 |
| Terminal material | Copper |
| Insulation | None |
| Dimension units | mm |
Imax is the catalog’s maximum-current label for the corresponding conductor group. The source does not provide test or installation conditions.
| Group | Conductor section | Imax | Material thickness (mm) | E (mm) | D (mm) | d (mm) |
|---|---|---|---|---|---|---|
| HNB 1.25 | 0.5–1.5 mm² | 19 A | 0.7 | 4.8 | 3.4 | 1.7 |
| HNB 2 | 1.5–2.5 mm² | 27 A | 0.8 | 4.8 | 4.1 | 2.3 |
| HNB 5.5 | 4–6 mm² | 48 A | 1.0 | 6.0 | 5.6 | 3.4 |
Dimension
The bolt-hole diameter is marked d2 on the supplied drawing. E, D and d are shared within each conductor group and repeated in the model table for direct comparison. All dimensions are in millimeters.
| Model | US bolt no. | Bolt-hole d2 (mm) | B (mm) | F (mm) | L (mm) | E (mm) | D (mm) | d (mm) |
|---|---|---|---|---|---|---|---|---|
| HNB 1.25-3.5 | #6 | 3.7 | 8.0 | 7.0 | 15.8 | 4.8 | 3.4 | 1.7 |
| HNB 1.25-4 | #8 | 4.3 | 8.0 | 7.0 | 15.8 | 4.8 | 3.4 | 1.7 |
| HNB 1.25-5 | #10 | 5.3 | 8.0 | 7.0 | 15.8 | 4.8 | 3.4 | 1.7 |
| HNB 1.25-6 | 1/4 | 6.5 | 11.6 | 11.0 | 21.8 | 4.8 | 3.4 | 1.7 |
| HNB 2-3.5 | #6 | 3.7 | 8.5 | 7.4 | 16.8 | 4.8 | 4.1 | 2.3 |
| HNB 2-4 | #8 | 4.3 | 8.5 | 7.4 | 16.8 | 4.8 | 4.1 | 2.3 |
| HNB 2-5 | #10 | 5.3 | 9.5 | 7.3 | 16.8 | 4.8 | 4.1 | 2.3 |
| HNB 2-6 | 1/4 | 6.5 | 12.0 | 11.0 | 21.8 | 4.8 | 4.1 | 2.3 |
| HNB 5.5-3.5 | #6 | 3.7 | 7.2 | 6.1 | 15.7 | 6.0 | 5.6 | 3.4 |
| HNB 5.5-4 | #8 | 4.3 | 9.5 | 9.5 | 19.8 | 6.0 | 5.6 | 3.4 |
| HNB 5.5-5 | #10 | 5.3 | 9.5 | 9.5 | 19.8 | 6.0 | 5.6 | 3.4 |
| HNB 5.5-6 | 1/4 | 6.5 | 12.0 | 10.3 | 22.5 | 6.0 | 5.6 | 3.4 |
| HNB 5.5-8 | 5/16 | 8.5 | 15.0 | 13.5 | 27.0 | 6.0 | 5.6 | 3.4 |
Selection Guide
Choose the conductor group and bolt-hole size, then compare B, F, L and the barrel dimensions with available connection space. Specify the exact model code when requesting a quotation.