Power Entry Connectors - Inlets, Outlets, Modules

Part Number	Description / PDF	Quantity
1301460083 Woodhead - Molex	PWR ENT PLUG NEMAL5-15 STR SCRW	0
1301500145 Woodhead - Molex	P&S 3P 4W 20A/3P 600V RECEPT	0
1301430018 Woodhead - Molex	28W75 W/50 12-4SO 29W75	0
1301550139 Woodhead - Molex	PWR ENT RCPT NON-NEMA STR SCREW	0
1301470161 Woodhead - Molex	L16-30P MOTOR BASE COVER PLATE	0
1301500094 Woodhead - Molex	PWR ENT RCPT PIN & SLEEVE PNL	0
1301460024 Woodhead - Molex	PWR ENT PLUG NEMA5-20 STR SCREW	0
1301470090 Woodhead - Molex	TURNEX INS WT MOTOR BASE CONN	0
1301500211 Woodhead - Molex	PWR ENT RCPT PIN & SLEEVE PNL	0
1301500199 Woodhead - Molex	PWR ENT PLUG PIN & SLEEVE STR	0
1301470034 Woodhead - Molex	WATERTITE PLUG 4P5W L23-20	0
1301460128 Woodhead - Molex	FD WATERTITE DOUBLE COVERPLATE N	0
1301440046 Woodhead - Molex	PWR ENT RCPT NEMA5-15 STR SCREW	0
1301420028 Woodhead - Molex	PWR ENT RCPT NEMAL21-20 STR SCRW	0
1301450067 Woodhead - Molex	PWR ENT RCPT NON-NEMA STR SCREW	5
1301550184 Woodhead - Molex	FEMALE "246C" PLUG ASSEMBLY60AMP	0
1301450039 Woodhead - Molex	PWR ENT RCPT NEMAL16-20 STR SCRW	0
1301500142 Woodhead - Molex	PWR ENT PLUG PIN & SLEEVE STR	0
1301480118 Woodhead - Molex	20A 125V BRN HOSP RECPT DUPLEXRE	0
1301450023 Woodhead - Molex	HI-AMP TURNEX L22-20 PLUG 4P5W	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