Power Entry Connectors - Inlets, Outlets, Modules

Part Number	Description / PDF	Quantity
1301490055 Woodhead - Molex	FLANGED INLET NEMA L21-30	2
1301490003 Woodhead - Molex	FLANGED INLET NEMA L23-30	2
1301470102 Woodhead - Molex	PWR ENT RCPT NEMAL14-30 STR SCRW	2
1301460123 Woodhead - Molex	PWR ENT RCPT NEMA5-20 WALL SCRW	1
1301460077 Woodhead - Molex	PWR ENT PLUG NEMAL1-15 STR SCRW	5
1301490049 Woodhead - Molex	FLANGED INLET NEMA L6-30	2
1301470018 Woodhead - Molex	PWR ENT PLUG NEMAL5-20 STR SCRW	21
1301470149 Woodhead - Molex	PWR ENT RCPT NEMAL15-20 WALL SCR	2
1300190006 Woodhead - Molex	DB 2P CAST RECEPTACLE YELLOW	0
1301490059 Woodhead - Molex	FLANGED OUTLET NEMA L14-30	1
1301470015 Woodhead - Molex	PWR ENT PLUG NON-NEMA STR SCREW	3
1301490028 Woodhead - Molex	FLANGED INLET NEMA L6-20	0
1301440078 Woodhead - Molex	PWR ENT PLUG NEMA5-15 STR SCREW	0
1301470047 Woodhead - Molex	PWR ENT RCPT NEMAL5-20 STR SCRW	2
1301420014 Woodhead - Molex	SUPER-SAFEWAY PLUG NEMA L21-20	5
1301450050 Woodhead - Molex	PWR ENT PLUG NEMAL6-30 STR SCRW	0
1301490063 Woodhead - Molex	PWR ENT RCPT NEMAL21-30 PNL SCRW	1
1301470029 Woodhead - Molex	PWR ENT PLUG NEMAL16-20 STR SCRW	0
1301490002 Woodhead - Molex	FLANGED RECEPT W/1549 INS	4
1301420034 Woodhead - Molex	SUPER-SAFEWAY PLUG NEMA L6-30 30	9

Power Entry Connectors - Inlets, Outlets, Modules

1. Overview

Power entry connectors are electro-mechanical devices designed to safely establish electrical connections between equipment and power sources. They serve as critical interfaces in AC/DC power systems, ensuring reliable energy transmission while meeting safety and regulatory standards. Their importance spans across industries where stable power delivery and user protection are paramount.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
IEC Appliance Inlets	Standardized C13/C19 types, detachable connections	Computers, servers, medical devices
NEMA Receptacles	Non-locking/Locking configurations (5-15P/R, L5-30P/R)	Industrial machinery, construction equipment
Modular Power Entry Modules	Integrated filtering, switching, and fused protection	Data centers, test equipment
Medical-Grade Connectors	Double-insulated, low-leakage current design	Patient monitors, MRI machines

3. Structure and Components

Typical construction includes:

Thermoplastic housing (UL94 V-0 rated)
Copper alloy contact springs (phosphor bronze)
Insulation barriers (glass-reinforced epoxy)
Termination options: Screw/clamp terminals or PCB mounts
Integrated features: EMI filters, circuit breakers, LED indicators

4. Key Technical Specifications

Parameter	Significance
Rated Voltage (50-600V AC/DC)	Determines maximum operating potential
Current Rating (1-63A)	Defines safe continuous load capacity
Contact Resistance (<5m )	Impacts power efficiency and thermal performance
Dielectric Withstanding Voltage (1.5-4kV)	Safety isolation capability
Temperature Range (-40 C to +125 C)	Environmental operational limits
IP Rating (IP20-IP67)	Protection against solids/liquids ingress

5. Application Fields

Consumer Electronics: Desktop PCs, printers, home appliances
Industrial Automation: PLC cabinets, motor drives, robotics
Medical Equipment: Ultrasound machines, ventilators, lab analyzers
Data Centers: Server racks, PDU units, UPS systems
Renewable Energy: Solar inverters, wind turbine controllers

6. Leading Manufacturers and Products

Manufacturer	Representative Product
TE Connectivity	Power-Entry Modules with integrated filters
Amphenol Corporation	Series 1300 IEC C13 inlets
Molex Incorporated	Mini-Fit Jr. power entry systems
Phoenix Contact	TRABTECH power entry solutions

7. Selection Guidelines

Key consideration factors:

Electrical Requirements: Match voltage/current ratings with system needs
Environmental Conditions: Consider temperature, humidity, and vibration
Certification Standards: UL/CSA, IEC 60320, medical 60601-1 compliance
Mechanical Durability: Minimum 10,000 mating cycles for industrial use
Space Constraints: Panel cutout dimensions and PCB footprint
Protection Features: Surge suppression, overcurrent protection integration

8. Industry Trends

Emerging developments include:

Miniaturization: 30% size reduction in IEC connectors for portable devices
High-Power Density: 600V/100A modules for EV charging infrastructure
Smart Connectivity: Integrated power-line communication (PLC) capabilities
Eco-friendly Materials: Halogen-free thermoplastics adoption (growing at 15% CAGR)
Modular Designs: Hot-swappable power entry systems for 24/7 operations