Power Entry Connectors - Accessories are complementary components that enhance the functionality, safety, and performance of power entry systems. These accessories include filters, fuse holders, mounting brackets, and cable management solutions. They play a critical role in ensuring safe electrical connections, electromagnetic interference (EMI) suppression, and compliance with international safety standards in devices ranging from consumer electronics to industrial machinery.
| Type | Functional Features | Application Examples |
|---|---|---|
| Power Entry Modules | Integrated solutions combining connectors, switches, and fuses | Medical equipment, industrial automation systems |
| EMI Filter Adapters | Attenuate high-frequency noise while maintaining power flow | IT servers, precision measurement instruments |
| Fuse Holders | Provide overcurrent protection with replaceable fuse elements | Power supplies, motor drives |
| Panel Mounting Kits | Secure installation hardware for panel-mounted connectors | Control cabinets, test equipment |
| Cable Glands | Strain relief and environmental sealing for cable entries | Outdoor enclosures, industrial machinery |
Typical components include: - Housing: Flame-retardant thermoplastics (e.g., PA66, PBT) or metal alloys - Contact Elements: Phosphor bronze or beryllium copper with gold/silver plating - Insulation: High-temperature resistant materials (up to 150 C) - Mounting Features: Threaded bushings, snap-in tabs, or PCB terminals - Protection Components: Built-in ferrite cores (for filters), fuse clips
| Parameter | Description | Importance |
|---|---|---|
| Voltage Rating | 100-600V AC/DC | Determines maximum operating voltage |
| Current Rating | 0.5-30A | Affects load capacity and thermal performance |
| Temperature Range | -40 C to +125 C | Ensures reliability in extreme conditions |
| Protection Class | IP20 to IP68 | Defines environmental protection level |
| Certifications | UL/CSA/IEC 60320, CE, RoHS | Guarantees safety and regulatory compliance |
| Manufacturer | Representative Product | Key Features |
|---|---|---|
| Schurter | FMAB-XXX | Integrated EMI filter + fuse, 250V/10A rating |
| TE Connectivity | 1-1418787 | Modular power entry system with quick-connect terminals |
| Amphenol | PX0404FR | Panel-mount connector with integrated strain relief |
| Molex | 30329-0001 | High-density power entry module for 1U servers |
Key considerations: - Match voltage/current ratings with system requirements - Verify environmental protection level (IP rating) - Check regulatory certifications for target markets - Evaluate mounting constraints (panel cutout dimensions) - For high-vibration environments: select anti-vibration designs
Emerging developments include: - Miniaturization for space-constrained applications - Integrated smart monitoring (IoT-enabled connectors) - Increased use of eco-friendly materials (halogen-free plastics) - Higher density designs for data center power distribution - Enhanced EMI filtering for 5G and EV charging applications