Product Description
Product Description
SPD Surge Protective Devices are designed to protect against transient surge conditions. Large single surge events, such as lightning, can reach hundreds of thousands of volts and can cause immediate or intermittent equipment failure. However, lightning and utility power anomalies only account for 20% of transient surges. The remaining 80% of surge activity is produced internally. Although these surges may be smaller in magnitude, they occur more frequently and with continuous exposure can degrade sensitive electronic equipment within the facility.
A power surge is a brief overvoltage event that can damage electrical devices and is a common cause for the failure of electrical equipment. Surges can damage and reduce the lifespan of:
- Heating and Air Conditioning Systems
- Washers and Dryers
- Water Heaters
- Ranges & Refrigerators
- Lighting
- Entertainment Systems
NEW 2571 National Electrical Code Requirements
All new and renovated homes are required to be protected by Listed and Approved Type 1 or Type 2 Surge Protective Devices.
Type 1:
Permanently connected Surge Protective Device. Protects against external and internal surges. May be installed inside or outside the home.
Type 2:
Permanently connected Surge Protective Device installed in, or next to, breaker box. Protects again internal or external surges.
Type 3:
Extra protection. Point-of-use Surge Protective Device. Must be used in conjunction with Type 1 or Type 2 CHINAMFG to meet 2571 code requirements.
Use Type 1, 2, and 3 SPDs for the best level of protection.
Product Parameters
| Max Continuous Operating Voltage | Ucpv | 500VDC | 600VDC | 1000VDC | 1500VDC | ||||||
| Nominal Discharge Current | In | 20kA | 20kA | 20kA | 20kA | ||||||
| Max Discharge Current | lmax | 40kA | 40 kA | 40kA | 40kA | ||||||
| Protection level | Up | 2.8kV | 3.0kV | 3.5kV | 5.5 kV | ||||||
| Rated shortcircuit current | IscCI | 100A | |||||||||
| lcpv | 0.2 mA | ||||||||||
| Connection mode | paralle | ||||||||||
| Response Time | tA | 25ns | |||||||||
| Back up fuse | LT-SSD40 | ||||||||||
| Remotecommunication | With | ||||||||||
| Remote communication connection | 1411:NO,1112:NC | ||||||||||
| Remote contact rated current | 220V/0.5A | ||||||||||
| Associated disconnectors | |||||||||||
| Thermal disconnector | internal | ||||||||||
| Fuses | Fuses type gG100A | ||||||||||
| ground fault breaker | None | ||||||||||
| Mechnical characteristics | |||||||||||
| Connection | By screw terminals:6-35mm | ||||||||||
| Terminal Screw Torque | 2.5 Nm | ||||||||||
| RecommendedCable cross Section | ≥16mm² | ||||||||||
| Insertwire length | 15mm | ||||||||||
| Mounting | DIN rail 35mm (EN6 0571 ) | ||||||||||
| Degree of Protection | IP20 | ||||||||||
| Housing | PBT | ||||||||||
| Flame retardant grade | UL94 V0 | ||||||||||
| Operating temperature | -40ºC~+70ºC | ||||||||||
| Operatingrelative humidity | 5%-95% | ||||||||||
| Working atmospheric pressure | 70kPa~106kPa | ||||||||||
| Connection | By screw terminals:6-35mm | ||||||||||
Installation Instructions
Selection of SPD:
For a power distribution system, the main characteristics used to define the lightning protection system and select a CHINAMFG to protect an electrical installation in a building are:
- SPD
- quantity of SPD
- type
- level of exposure to define the SPD’s maximum discharge current Imax.
- Short circuit protection device
- maximum discharge current Imax;
- short-circuit current Isc at the point of installation.
The other characteristics for selection of a CHINAMFG are predefined for an electrical installation.
- number of poles in SPD;
- voltage protection level Up;
- operating voltage Uc.
This sub-section Design of the electrical installation protection system describes in greater detail the criteria for selection of the protection system according to the characteristics of the installation, the equipment to be protected and the environment.
Location and types of SPD:
Connection of SPD:
Connections of a CHINAMFG to the loads should be as short as possible in order to reduce the value of the voltage protection level (installed Up) on the terminals of the protected equipment.
The total length of CHINAMFG connections to the network and the earth terminal block should not exceed 50 cm.
CHINAMFG in plastic enclosure SPD in metal enclosure
RED: Replace
Once the indicator shows RED, the product must be replaced.
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Can you provide examples of products or equipment that incorporate injection molded parts?
Yes, there are numerous products and equipment across various industries that incorporate injection molded parts. Injection molding is a widely used manufacturing process that enables the production of complex and precise components. Here are some examples of products and equipment that commonly incorporate injection molded parts:
1. Electronics and Consumer Devices:
– Mobile phones and smartphones: These devices typically have injection molded plastic casings, buttons, and connectors.
– Computers and laptops: Injection molded parts are used for computer cases, keyboard keys, connectors, and peripheral device housings.
– Appliances: Products such as televisions, refrigerators, washing machines, and vacuum cleaners often incorporate injection molded components for their casings, handles, buttons, and control panels.
– Audio equipment: Speakers, headphones, and audio players often use injection molded parts for their enclosures and buttons.
2. Automotive Industry:
– Cars and Trucks: Injection molded parts are extensively used in the automotive industry. Examples include dashboard panels, door handles, interior trim, steering wheel components, air vents, and various under-the-hood components.
– Motorcycle and Bicycle Parts: Many motorcycle and bicycle components are manufactured using injection molding, including fairings, handle grips, footrests, instrument panels, and engine covers.
– Automotive Lighting: Headlights, taillights, turn signals, and other automotive lighting components often incorporate injection molded lenses, housings, and mounts.
3. Medical and Healthcare:
– Medical Devices: Injection molding is widely used in the production of medical devices such as syringes, IV components, surgical instruments, respiratory masks, implantable devices, and diagnostic equipment.
– Laboratory Equipment: Many laboratory consumables, such as test tubes, petri dishes, pipette tips, and specimen containers, are manufactured using injection molding.
– Dental Equipment: Dental tools, orthodontic devices, and dental prosthetics often incorporate injection molded components.
4. Packaging Industry:
– Bottles and Containers: Plastic bottles and containers used for food, beverages, personal care products, and household chemicals are commonly produced using injection molding.
– Caps and Closures: Injection molded caps and closures are widely used in the packaging industry for bottles, jars, and tubes.
– Thin-Walled Packaging: Injection molding is used to produce thin-walled packaging products such as trays, cups, and lids for food and other consumer goods.
5. Toys and Games:
– Many toys and games incorporate injection molded parts. Examples include action figures, building blocks, puzzles, board game components, and remote-controlled vehicles.
6. Industrial Equipment and Tools:
– Industrial machinery: Injection molded parts are used in various industrial equipment and machinery, including components for manufacturing machinery, conveyor systems, and robotic systems.
– Power tools: Many components of power tools, such as housing, handles, switches, and guards, are manufactured using injection molding.
– Hand tools: Injection molded parts are incorporated into a wide range of hand tools, including screwdrivers, wrenches, pliers, and cutting tools.
These are just a few examples of products and equipment that incorporate injection molded parts. The versatility of injection molding allows for its application in a wide range of industries, enabling the production of high-quality components with complex geometries and precise specifications.
How do innovations and advancements in injection molding technology influence part design and production?
Innovations and advancements in injection molding technology have a significant influence on part design and production. These advancements introduce new capabilities, enhance process efficiency, improve part quality, and expand the range of applications for injection molded parts. Here’s a detailed explanation of how innovations and advancements in injection molding technology influence part design and production:
Design Freedom:
Advancements in injection molding technology have expanded the design freedom for part designers. With the introduction of advanced software tools, such as computer-aided design (CAD) and simulation software, designers can create complex geometries, intricate features, and highly optimized designs. The use of 3D modeling and simulation allows for the identification and resolution of potential design issues before manufacturing. This design freedom enables the production of innovative and highly functional parts that were previously challenging or impossible to manufacture using conventional techniques.
Improved Precision and Accuracy:
Innovations in injection molding technology have led to improved precision and accuracy in part production. High-precision molds, advanced control systems, and closed-loop feedback mechanisms ensure precise control over the molding process variables, such as temperature, pressure, and cooling. This level of control results in parts with tight tolerances, consistent dimensions, and improved surface finishes. Enhanced precision and accuracy enable the production of parts that meet strict quality requirements, fit seamlessly with other components, and perform reliably in their intended applications.
Material Advancements:
The development of new materials and material combinations specifically formulated for injection molding has expanded the range of properties available to part designers. Innovations in materials include high-performance engineering thermoplastics, bio-based polymers, reinforced composites, and specialty materials with unique properties. These advancements allow for the production of parts with enhanced mechanical strength, improved chemical resistance, superior heat resistance, and customized performance characteristics. Material advancements in injection molding technology enable the creation of parts that can withstand demanding operating conditions and meet the specific requirements of various industries.
Process Efficiency:
Innovations in injection molding technology have introduced process optimizations that improve efficiency and productivity. Advanced automation, robotics, and real-time monitoring systems enable faster cycle times, reduced scrap rates, and increased production throughput. Additionally, innovations like multi-cavity molds, hot-runner systems, and micro-injection molding techniques improve material utilization and reduce production costs. Increased process efficiency allows for the economical production of high-quality parts in larger quantities, meeting the demands of industries that require high-volume production.
Overmolding and Multi-Material Molding:
Advancements in injection molding technology have enabled the integration of multiple materials or components into a single part through overmolding or multi-material molding processes. Overmolding allows for the encapsulation of inserts, such as metal components or electronics, with a thermoplastic material in a single molding cycle. This enables the creation of parts with improved functionality, enhanced aesthetics, and simplified assembly. Multi-material molding techniques, such as co-injection molding or sequential injection molding, enable the production of parts with multiple colors, varying material properties, or complex material combinations. These capabilities expand the design possibilities and allow for the creation of innovative parts with unique features and performance characteristics.
Additive Manufacturing Integration:
The integration of additive manufacturing, commonly known as 3D printing, with injection molding technology has opened up new possibilities for part design and production. Additive manufacturing can be used to create complex mold geometries, conformal cooling channels, or custom inserts, which enhance part quality, reduce cycle times, and improve part performance. By combining additive manufacturing and injection molding, designers can explore new design concepts, produce rapid prototypes, and efficiently manufacture customized or low-volume production runs.
Sustainability and Eco-Friendly Solutions:
Advancements in injection molding technology have also focused on sustainability and eco-friendly solutions. This includes the development of biodegradable and compostable materials, recycling technologies for post-consumer and post-industrial waste, and energy-efficient molding processes. These advancements enable the production of environmentally friendly parts that contribute to reducing the carbon footprint and meeting sustainability goals.
Overall, innovations and advancements in injection molding technology have revolutionized part design and production. They have expanded design possibilities, improved precision and accuracy, introduced new materials, enhanced process efficiency, enabled overmolding and multi-material molding, integrated additive manufacturing, and promoted sustainability. These advancements empower part designers and manufacturers to create highly functional, complex, and customized parts that meet the demands of various industries and contribute to overall process efficiency and sustainability.
Can you describe the range of materials that can be used for injection molding?
Injection molding offers a wide range of materials that can be used to produce parts with diverse properties and characteristics. The choice of material depends on the specific requirements of the application, including mechanical properties, chemical resistance, thermal stability, transparency, and cost. Here’s a description of the range of materials commonly used for injection molding:
1. Thermoplastics:
Thermoplastics are the most commonly used materials in injection molding due to their versatility, ease of processing, and recyclability. Some commonly used thermoplastics include:
- Polypropylene (PP): PP is a lightweight and flexible thermoplastic with excellent chemical resistance and low cost. It is widely used in automotive parts, packaging, consumer products, and medical devices.
- Polyethylene (PE): PE is a versatile thermoplastic with excellent impact strength and chemical resistance. It is used in various applications, including packaging, pipes, automotive components, and toys.
- Polystyrene (PS): PS is a rigid and transparent thermoplastic with good dimensional stability. It is commonly used in packaging, consumer goods, and disposable products.
- Polycarbonate (PC): PC is a transparent and impact-resistant thermoplastic with high heat resistance. It finds applications in automotive parts, electronic components, and optical lenses.
- Acrylonitrile Butadiene Styrene (ABS): ABS is a versatile thermoplastic with a good balance of strength, impact resistance, and heat resistance. It is commonly used in automotive parts, electronic enclosures, and consumer products.
- Polyvinyl Chloride (PVC): PVC is a durable and flame-resistant thermoplastic with good chemical resistance. It is used in a wide range of applications, including construction, electrical insulation, and medical tubing.
- Polyethylene Terephthalate (PET): PET is a strong and lightweight thermoplastic with excellent clarity and barrier properties. It is commonly used in packaging, beverage bottles, and textile fibers.
2. Engineering Plastics:
Engineering plastics offer enhanced mechanical properties, heat resistance, and dimensional stability compared to commodity thermoplastics. Some commonly used engineering plastics in injection molding include:
- Polyamide (PA/Nylon): Nylon is a strong and durable engineering plastic with excellent wear resistance and low friction properties. It is used in automotive components, electrical connectors, and industrial applications.
- Polycarbonate (PC): PC, mentioned earlier, is also considered an engineering plastic due to its exceptional impact resistance and high-temperature performance.
- Polyoxymethylene (POM/Acetal): POM is a high-strength engineering plastic with low friction and excellent dimensional stability. It finds applications in gears, bearings, and precision mechanical components.
- Polyphenylene Sulfide (PPS): PPS is a high-performance engineering plastic with excellent chemical resistance and thermal stability. It is used in electrical and electronic components, automotive parts, and industrial applications.
- Polyetheretherketone (PEEK): PEEK is a high-performance engineering plastic with exceptional heat resistance, chemical resistance, and mechanical properties. It is commonly used in aerospace, medical, and industrial applications.
3. Thermosetting Plastics:
Thermosetting plastics undergo a chemical crosslinking process during molding, resulting in a rigid and heat-resistant material. Some commonly used thermosetting plastics in injection molding include:
- Epoxy: Epoxy resins offer excellent chemical resistance and mechanical properties. They are commonly used in electrical components, adhesives, and coatings.
- Phenolic: Phenolic resins are known for their excellent heat resistance and electrical insulation properties. They find applications in electrical switches, automotive parts, and consumer goods.
- Urea-formaldehyde (UF) and Melamine-formaldehyde (MF): UF and MF resins are used for molding electrical components, kitchenware, and decorative laminates.
4. Elastomers:
Elastomers, also known as rubber-like materials, are used to produce flexible and elastic parts. They provide excellent resilience, durability, and sealing properties. Some commonly used elastomers in injection molding include:
- Thermoplastic Elastomers (TPE): TPEs are a class of materials that combine the characteristics of rubber and plastic. They offer flexibility, good compression set, and ease of processing. TPEs find applications in automotive components, consumer products, and medical devices.
- Silicone: Silicone elastomers provide excellent heat resistance, electrical insulation, and biocompatibility. They are commonly used in medical devices, automotive seals, and household products.
- Styrene Butadiene Rubber (SBR): SBR is a synthetic elastomer with good abrasion resistance and low-temperature flexibility. It is used in tires, gaskets, and conveyor belts.
- Ethylene Propylene Diene Monomer (EPDM): EPDM is a durable elastomer with excellent weather resistance and chemical resistance. It finds applications in automotive seals, weatherstripping, and roofing membranes.
5. Composites:
Injection molding can also be used to produce parts made of composite materials, which combine two or more different types of materials to achieve specific properties. Commonly used composite materials in injection molding include:
- Glass-Fiber Reinforced Plastics (GFRP): GFRP combines glass fibers with thermoplastics or thermosetting resins to enhance mechanical strength, stiffness, and dimensional stability. It is used in automotive components, electrical enclosures, and sporting goods.
- Carbon-Fiber Reinforced Plastics (CFRP): CFRP combines carbon fibers with thermosetting resins to produce parts with exceptional strength, stiffness, and lightweight properties. It is commonly used in aerospace, automotive, and high-performance sports equipment.
- Metal-Filled Plastics: Metal-filled plastics incorporate metal particles or fibers into thermoplastics to achieve properties such as conductivity, electromagnetic shielding, or enhanced weight and feel. They are used in electrical connectors, automotive components, and consumer electronics.
These are just a few examples of the materials used in injection molding. There are numerous other specialized materials available, each with its own unique properties, such as flame retardancy, low friction, chemical resistance, or specific certifications for medical or food-contact applications. The selection of the material depends on the desired performance, cost considerations, and regulatory requirements of the specific application.
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editor by Dream 2024-10-28