Choosing the right terminal type for heavy duty industrial connector ensures reliable performance in demanding environments. Below is a detailed breakdown of four common terminal technologies—screw, crimp, cage clamp, and axial screw—and their unique features.
Screw Terminals
1. Key Features
Tool-free installation: Only a standard screwdriver is required; no special tools are needed. Installation personnel do not require specialized training.
Wide compatibility: Suitable for solid conductors, stranded conductors, and pre-terminated wire connectors.
Certified reliability: Certified by global authoritative institutions such as UL, VDE, SEV, and CSA.
Mechanical stability: Strong clamping force ensures vibration-resistant connections.
No wire pre-processing required: Only insulation removal is needed; no crimping or welding is required.
Easy to manage: The wire core itself has pins.
Wide range of applicable wires: Suitable for medium and high-voltage power connections, capable of withstanding large currents. Can be equipped with wire protection plates.
2. Products
Han A series, Han E series, HSB series, Han K series heavy duty connectors, etc.
| Inserts | Max. wire gauge | Stripping length L(mm) | |
| mm² | AWG | ||
| HA-003, HA-004 | 2.5 | 14 | 4.5 |
| HE, HA, HEAV | 2.5 | 14 | 7.5 |
| HE, HVE | 4.0 | 12 | 7.5 |
| HSB | 6.0 | 10 | 11.5 |
| HK, HWK | 16.0 | 5.0 | 14 |
Crimp Terminals
1. Key Features
Cold Welding Quality: Uniform crimping ensures consistent resistance and corrosion resistance.
Pre-assembled Cable Assemblies: Use ready-made cable assemblies to accelerate wiring.
High Pin Density: Suitable for compact, high-current designs, ensuring corrosion resistance.
Vibration Resistance: Widely applicable in vibration environments.
Flexible Coating: Compatible with silver or gold-plated pins.
Tools: Cold crimping pliers, pin remover
2. Products
HD/HDD Series, HE Series, HEE/HEEE Series, HM Series heavy duty industrial connector
| Inserts | Max wire gauge | Stripping length L(mm) | |
| mm² | AWG | ||
| HDHDDHM(10A) | 0.5 | 20 | 4.5 |
| 0.75 | 14 | 7.5 | |
| 4.0 | 12 | 7.5 | |
| 6.0 | 10 | 11.5 | |
| 16.0 | 5.0 | 14 | |
Cage Clamp Terminal
1. Key Features
Tool-Light Installation: Uses a flathead screwdriver (3.0×0.5mm) for quick wire insertion.
Self-Adjusting Clamp: Automatically adjusts force for wire sizes 0.14–2.5mm².
Visual Inspection: Open design allows post-installation checks.
Vibration/Shock Proof: The clamping force increases with the increase in the cross-sectional area of the conductor; the conductor connection is resistant to vibration and impact.
No Stripping Needed: Insert insulated wires directly for faster assembly.
2. Product
HE Series
| Inserts | Max. wire gauge | Stripping length L(mm) | |
| mm² | AWG | ||
| HE | 0.14-2.5 | 26-14 | 9-11 |
Axial Screw Terminal
1. Key Features
Space-Saving Design: Combines screw terminal ease with crimp terminal compactness.
Hex-Key Simplicity: No special tools required; Suitable for large cross-section fine stranded wires
Secure Grip: Axial force prevents loosening under thermal cycling.
Certified Safety: Meets UL and IEC standards for industrial power systems.
2. Product
HK-006/6, HK-006/12, HK-008/0
| Inserts | Max. wire gauge | Stripping length L(mm) | |
| mm² | AWG | ||
| HK-006/6 | 16-35 | 5-2 | 13-14 |
| HK-006/12 | 2.5-10 | 13/-1 | 8-9 |
| HK-008/0 | 10-25 | 16/-1 | 6-7 |
Why Choose UMER Connectors?
Full Terminal Range: Screw (Han® A/E), crimp (HD/HDD), cage clamp (HE), and axial screw (HK).
Certifications: UL, CE, and ISO-compliant for global deployments.
Cost Efficiency: Competitive pricing without compromising durability.
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