Power Entry Connectors - Inlets, Outlets, Modules

Part Number	Description / PDF	Quantity
1301500295 Woodhead - Molex	100A,3PHY277/480V, 4P5W, MI,WT	0
1301550045 Woodhead - Molex	INLET 50A 2P3W 250DC/600AC REPLA	0
1301450074 Woodhead - Molex	PWR ENT RCPT NEMAL7-30 STR SCRW	0
1301460079 Woodhead - Molex	PWR ENT PLUG NEMAL7-15 STR SCRW	7
1301470183 Woodhead - Molex	L23-30P WATERTITE PLUG BLACK	0
1301470154 Woodhead - Molex	PWR ENT RCPT NEMAL23-20 WALL SCR	0
1301440081 Woodhead - Molex	HOSP HI-IMPACT CONN 5-15 YLW YEL	0
1301470043 Woodhead - Molex	NON-NEMA WT MOTOR BASE CONN	0
1301430030 Woodhead - Molex	4739 W/16' 12-3 36505 & GFCI IN-	0
1301500207 Woodhead - Molex	P&S 3P 4W 60A/125/250V RECEPT	0
1301500026 Woodhead - Molex	PWR ENT RCPT PIN & SLEEVE STR	0
1301480089 Woodhead - Molex	15A 125V 5-15R WHT RECPT DUPRECE	0
1301490090 Woodhead - Molex	SNGL REPT 5-20R 20A RED	0
1301410012 Woodhead - Molex	5-20P SUPER SAFEWAY PLUG/GCM 20A	0
1301430031 Woodhead - Molex	5266 W/20 FT #14-3 SOW 5269	0
1301410032 Woodhead - Molex	PWR ENT RCPT NEMA5-15 STR SCREW	0
1301480092 Woodhead - Molex	DUP RECEPT 5-20R BLACK	0
1301500230 Woodhead - Molex	PWR ENT RCPT PIN & SLEEVE STR	0
1301500167 Woodhead - Molex	P&S 3P4W 30A/125-250 PLUG SPLF	0
1301500155 Woodhead - Molex	PWR ENT RCPT PIN & SLEEVE STR	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