Power Entry Connectors - Inlets, Outlets, Modules

Image	Part Number	Description / PDF	Quantity	Rfq
	1301470103 Woodhead - Molex	PWR ENT RCPT NEMAL14-30 STR SCRW	0
	1301430015 Woodhead - Molex	24W04 W/50 16-2SO 25W04	0
	1301500164 Woodhead - Molex	30A3PH/480V3P4W MI SAFEWAY	0
	1301500213 Woodhead - Molex	PWR ENT RCPT PIN & SLEEVE PNL	0
	1301960121 Woodhead - Molex	QC PIN .125D 2-4P 12-14AWG	0
	1301470171 Woodhead - Molex	PWR ENT RCPT NON-NEMA WALL SCREW	0
	1301500242 Woodhead - Molex	P&S 4P5W 20A/3PY277/480 RECEPT	0
	1301470152 Woodhead - Molex	FS/FD COVER 4P5W L21-20 WT BLACK	0
	1301460072 Woodhead - Molex	6-20R WT MOTOR BASE CONN	0
	1301500201 Woodhead - Molex	PWR ENT PLUG PIN & SLEEVE STR	0
	1301440033 Woodhead - Molex	L7-15 CONN HI-IMPACT	0
	1301450054 Woodhead - Molex	HI-AMP TURNEX L15-30 PLUG 3P4W	0
	1301470104 Woodhead - Molex	L14-30R WT MOTOR BASE CONN	0
	1301410087 Woodhead - Molex	SUPER-SAFEWAY PLUG NEMA L5-15 BL	0
	1301470089 Woodhead - Molex	PWR ENT RCPT NON-NEMA STR SCREW	0
	1301450031 Woodhead - Molex	HI-AMP TURNEX L5-20 CONN 2P3W	0
	1301460017 Woodhead - Molex	WATERTITE SAFEWAY PLUG BLACK	0
	1301550095 Woodhead - Molex	PWR ENT RCPT NON-NEMA STR SCREW	0
	1301500172 Woodhead - Molex	P&S 3P4W 30A/3P 250 PLUG	0
	1301500206 Woodhead - Molex	P&S 3P 4W 60A/125/250V RECEPT	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