Power Entry Connectors - Inlets, Outlets, Modules

Image	Part Number	Description / PDF	Quantity	Rfq
	1301500247 Woodhead - Molex	P&S 4P5W 30A/3P 120-208 INL SP	0
	1301500273 Woodhead - Molex	PWR ENT PLUG PIN & SLEEVE STR	0
	1301450030 Woodhead - Molex	PWR ENT RCPT NEMAL5-20 STR SCRW	0
	1301460185 Woodhead - Molex	WATERTITE PLUG NEMA 5-15P	0
	1301500272 Woodhead - Molex	PWR ENT PLUG PIN & SLEEVE STR	0
	1301550123 Woodhead - Molex	PLUG 50A 3P4W 250DC/600AC	0
	1301550110 Woodhead - Molex	FD GFCI WT ASSY L5-20 20A/125V	0
	1301500178 Woodhead - Molex	P&S 3P4W 30A/3PH 250V REC.SPLF	0
	1301500129 Woodhead - Molex	PWR ENT RCPT PIN & SLEEVE STR	0
	1301420047 Woodhead - Molex	SUPER-SAFEWAY CONN NEMA L21-30	0
	1301440043 Woodhead - Molex	PWR ENT PLUG NEMA5-15 STR SCREW	0
	1301420029 Woodhead - Molex	SUPER-SAFEWAY CONN NEMA L22-20	0
	1301440062 Woodhead - Molex	6-20 PLUG HI-IMPACT YELLOW	0
	1301430026 Woodhead - Molex	29W09 W/00-4990 GROMMET	0
	1301450021 Woodhead - Molex	HI-AMP TURNEX L21-20 PLUG 4P5W	0
	1301450003 Woodhead - Molex	HI-AMP TURNEX PLUG 20A 250V	0
	1301490085 Woodhead - Molex	TURNEX RECEPTACLE NEMA L16-30	0
	1301460135 Woodhead - Molex	FD WATERTITE DOUBLE COVERPLATE N	0
	1301500093 Woodhead - Molex	P&S 2P 3W 60A/480V PLUG SPLPF	0
	1301470125 Woodhead - Molex	20A/120V MOTOR BASE COVER PLAT 2	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