Dongguan Yinyin Hardware Products Co., Ltd. is a comprehensive enterprise that integrates production, service, sales, and after-sales support. We welcome all buyers to contact us for detailed negotiations!
As a manufacturer specialized in professional silver contacts, in-mold riveting parts, stamping components, and low-voltage switches (such as wall switches and leakage switches), we focus on "safe electricity, safe switches, and safe electricians." We are committed to delivering the most complete safety power solutions to our customers.
1. **Understanding Contacts**
When dealing with high-frequency energization at 220V, the role of a contact is to reduce contact resistance, minimize arcing, and extend the lifespan of the switch. Without proper contacts, it can be extremely dangerous. For example, in a typical 220V, 10A application, the contact should have a diameter of at least 2.5mm to ensure safe operation.
2. **Arcs – A Common but Misunderstood Phenomenon**
Arcs are something many people recognize, but even some well-known brands often mislead consumers by claiming they “extinguish arcs.†In reality, in mechanical switches, arcs are unavoidable. However, there are special types like thyristor switches that can effectively control arcing—though these are not commonly used in standard wall switches. When two charged conductors make or break contact, an arc can occur at voltages as low as 12–20V and currents as small as 0.25–1A.
3. **Contact Material – What You Should Know**
Many people are unaware of the materials used in switch contacts, but toxicity is a concern everyone should pay attention to. Most wall switches today use silver-cadmium alloys for their contacts. Unfortunately, cadmium is highly toxic and can severely affect the kidneys. This is why the ROHS directive was introduced to restrict such harmful substances in electrical products. However, many consumers still remain unaware of this important regulation.
4. **Switch Structure – The Key to Performance**
When purchasing a switch, people often choose based on touch or appearance, but the internal structure is what truly determines its performance and feel. Most switches sold in China use a bridge-type structure, which relies on sliding friction to operate. Only a small percentage of brands use a pendulum structure, which changes the friction type from sliding to axial or rolling, improving reliability and durability.
5. **Copper Sheet Thickness**
Industry standards require copper sheets to be thicker than 0.6–0.7 mm to ensure conductivity and structural integrity.
6. **Clearance Between Terminals**
There must be a minimum clearance of 3 mm between terminals of different polarities, whether in a straight line or in space, to prevent electrical shorts and ensure safety.
7. **Wiring Screws**
Copper screws are the best choice for wiring due to their superior conductivity and durability.
Established in 2005, Dongguan Yinyin Hardware Products Co., Ltd. specializes in manufacturing a wide range of products, including silver contacts, electrical contacts, double composite silver nails, riveted silver contacts, soldered silver contacts, precision stampings, conductive copper posts, contact screws, electrical screws, DC and AC pins, copper sleeves, hollow needles, semi-hollow needles, four guides, rivets, silver dots, binding posts, AV copper sleeves, 3F07 and 3F05 copper sleeves, 215 copper sleeves, and more. We also produce various products made from silver, copper, iron, aluminum, and non-magnetic steel. For inquiries, please contact Mr. Chen at 13728192869.
Keywords: relay contacts, composite contacts, switch contacts, silver contacts, dual composite contacts, triple composite contacts, shaped contacts, environmental-friendly contacts, in-mold riveting contacts, silver alloy contacts, rivet contacts, punch-and-rivet integrated contacts, solder contacts, and more.
Website: http://news.chinawj.com.cn
As a manufacturer specialized in professional silver contacts, in-mold riveting parts, stamping components, and low-voltage switches (such as wall switches and leakage switches), we focus on "safe electricity, safe switches, and safe electricians." We are committed to delivering the most complete safety power solutions to our customers.
1. **Understanding Contacts**
When dealing with high-frequency energization at 220V, the role of a contact is to reduce contact resistance, minimize arcing, and extend the lifespan of the switch. Without proper contacts, it can be extremely dangerous. For example, in a typical 220V, 10A application, the contact should have a diameter of at least 2.5mm to ensure safe operation.
2. **Arcs – A Common but Misunderstood Phenomenon**
Arcs are something many people recognize, but even some well-known brands often mislead consumers by claiming they “extinguish arcs.†In reality, in mechanical switches, arcs are unavoidable. However, there are special types like thyristor switches that can effectively control arcing—though these are not commonly used in standard wall switches. When two charged conductors make or break contact, an arc can occur at voltages as low as 12–20V and currents as small as 0.25–1A.
3. **Contact Material – What You Should Know**
Many people are unaware of the materials used in switch contacts, but toxicity is a concern everyone should pay attention to. Most wall switches today use silver-cadmium alloys for their contacts. Unfortunately, cadmium is highly toxic and can severely affect the kidneys. This is why the ROHS directive was introduced to restrict such harmful substances in electrical products. However, many consumers still remain unaware of this important regulation.
4. **Switch Structure – The Key to Performance**
When purchasing a switch, people often choose based on touch or appearance, but the internal structure is what truly determines its performance and feel. Most switches sold in China use a bridge-type structure, which relies on sliding friction to operate. Only a small percentage of brands use a pendulum structure, which changes the friction type from sliding to axial or rolling, improving reliability and durability.
5. **Copper Sheet Thickness**
Industry standards require copper sheets to be thicker than 0.6–0.7 mm to ensure conductivity and structural integrity.
6. **Clearance Between Terminals**
There must be a minimum clearance of 3 mm between terminals of different polarities, whether in a straight line or in space, to prevent electrical shorts and ensure safety.
7. **Wiring Screws**
Copper screws are the best choice for wiring due to their superior conductivity and durability.
Established in 2005, Dongguan Yinyin Hardware Products Co., Ltd. specializes in manufacturing a wide range of products, including silver contacts, electrical contacts, double composite silver nails, riveted silver contacts, soldered silver contacts, precision stampings, conductive copper posts, contact screws, electrical screws, DC and AC pins, copper sleeves, hollow needles, semi-hollow needles, four guides, rivets, silver dots, binding posts, AV copper sleeves, 3F07 and 3F05 copper sleeves, 215 copper sleeves, and more. We also produce various products made from silver, copper, iron, aluminum, and non-magnetic steel. For inquiries, please contact Mr. Chen at 13728192869.
Keywords: relay contacts, composite contacts, switch contacts, silver contacts, dual composite contacts, triple composite contacts, shaped contacts, environmental-friendly contacts, in-mold riveting contacts, silver alloy contacts, rivet contacts, punch-and-rivet integrated contacts, solder contacts, and more.
Website: http://news.chinawj.com.cn
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