**Product Specifications:**
- **Model No.:** HSD-11
- **Process:** Forming Process
- **Industry:** Metal Stamping Parts
- **Tolerances:** 0.01mm
- **Customized:** Yes, Customized
- **Material for Silver Layer:** AgSnO2, AgNi, AgCdO, Fine Silver
- **Trademark:** WEHOPE
- **Transport Package:** Vacuum Plastic Bag, Solid Standard Export Carton
- **Specification:** Diameter: 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm
- **Origin:** China
- **HS Code:** 8538900000
DC contactors are primarily used for the remote control of DC circuits, enabling frequent starting, stopping, reversing, and braking of DC motors. Although less common than AC contactors, they have unique applications and play a vital role in low-voltage electrical systems globally.
**Model:** Contact + Stamping + Contact Components
**Features:** Integration of automatic spot welding and riveting between contacts and copper alloys or copper
**Material:** Silver Nickel, Silver Copper Oxide, Fine Crystal Silver, Silver Cadmium Oxide, Silver Tin Oxide, Brass, Copper
**Uses:** Contactor, Small Switch, Starter, Thermostat
**Contact Performance Requirements:**
To ensure reliable operation, contact materials must meet several key criteria:
1. High electrical and thermal conductivity to minimize heat loss and reduce surface oxidation.
2. High melting and boiling points, along with high latent heat of fusion and evaporation, to reduce wear and prevent welding during arcing.
3. Chemical stability to maintain consistent contact resistance even under environmental contamination.
4. Appropriate hardness and elasticity—too hard, and contact area is small; too soft, and mechanical bounce increases wear.
5. Easy to process and weld.
6. Cost-effective while maintaining performance.
For strong contact materials, the main requirements include:
- Low contact resistance to avoid overcurrent issues.
- Minimal wear rate for extended service life.
- Strong anti-welding properties for safe circuit interruption.
- Low residual current and good arc extinction capability to prevent re-ignition.
For weak contact materials:
- Stable and low contact resistance with minimal electrical wear.
- High starting voltage and small arc current to minimize arcing.
- Low contact force, making mechanical wear less critical.
In DC applications, it's essential that material transfer between contacts is minimized. Electrical contact components are widely used in switches, relays, thermostats, circuit breakers, contactors, controllers, timers, and other low-voltage electrical devices as well as household appliances.
We offer SGS and ISO9001 certifications to ensure quality and compliance with international standards. Our products are designed to deliver long-lasting performance and reliability in a wide range of industrial and consumer applications. Whether you're looking for precision metal stamping parts or high-quality contact components, we provide tailored solutions to meet your specific needs.
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Wenzhou Deli Machinery Equipment Co., Ltd. , https://www.sungoodtech.com