Power Entry Connectors - Inlets, Outlets, Modules

Part Number	Description / PDF	Quantity
1301440010 Woodhead - Molex	14W48 W/00-4972 GROMMET FOR18-2S	0
1301460157 Woodhead - Molex	PWR ENT RCPT NEMAL2-20 WALL SCRW	0
1301480093 Woodhead - Molex	DUP RECEPT 5-20R IVORY	0
1301430002 Woodhead - Molex	26W48BLK W/25' #10-3 &27W48BLK A	0
1301410064 Woodhead - Molex	PWR ENT PLUG NEMAL7-20 STR SCRW	0
1301500212 Woodhead - Molex	P&S 3P4W 60A/3P 250V RCPT SPLF	0
1301410038 Woodhead - Molex	PWR ENT RCPT NEMA6-15 STR SCREW	0
1301500148 Woodhead - Molex	P&S 3P4W 20A/3PH 480V REC.SPLF	0
1301450077 Woodhead - Molex	PWR ENT RCPT NEMAL14-30 STR SCRW	0
1301470064 Woodhead - Molex	L21-20R WT MOTOR BASE CONN	0
1301410066 Woodhead - Molex	SUPER-SAFEWAY CONN NEMA L6-20 20	0
1301470082 Woodhead - Molex	PWR ENT PLUG NEMAL16-30 STR SCRW	0
1301550078 Woodhead - Molex	REPLACEMENT CLOSURE CONNECTOR A-	0
1301460045 Woodhead - Molex	6-15P WATERTITE PLUG - BLACK	0
1301480113 Woodhead - Molex	5-15R DUPLEX RECEPT HG BROWN	0
1301470060 Woodhead - Molex	PWR ENT RCPT NEMAL16-20 STR SCRW	2
1301470174 Woodhead - Molex	PWR ENT RCPT NEMAL15-30 WALL SCR	0
1301420019 Woodhead - Molex	PWR ENT RCPT NON-NEMA STR SCREW	0
1301460054 Woodhead - Molex	PWR ENT RCPT NEMA5-20 STR SCREW	0
1301460155 Woodhead - Molex	PWR ENT RCPT NEMAL2-20 WALL SCRW	0

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