Power Entry Connectors - Inlets, Outlets, Modules

Part Number	Description / PDF	Quantity
1301450052 Woodhead - Molex	HI-AMP TURNEX L14-30 PLUG 3P4W	0
1301550100 Woodhead - Molex	RECEPTACLE 50A 2P3W 125V CORROSI	0
1301550106 Woodhead - Molex	A-SIZE WATERTITE COVER ASSY WITH	0
1301470165 Woodhead - Molex	L23-30P MOTOR BASE COVER PLATE	0
1301420045 Woodhead - Molex	PWR ENT RCPT NEMAL16-30 STR SCRW	0
1301470105 Woodhead - Molex	PWR ENT RCPT NEMAL15-30 STR SCRW	2
1301490089 Woodhead - Molex	PWR ENT RCPT NEMA5-20 BOX SCREW	0
1301500115 Woodhead - Molex	P&S 3P 4W 100A/3P 250V PLUG WT	1
1301450037 Woodhead - Molex	HI-AMP TURNEX L15-20 CONN 3P4W	0
1301470063 Woodhead - Molex	WATERTITE CONNCTOR 4P5W L21-20 B	0
1301550083 Woodhead - Molex	REPLACEMENT CLOSURE CONNECTOR C-	0
1301500181 Woodhead - Molex	PWR ENT RCPT PIN & SLEEVE PNL	0
1301470041 Woodhead - Molex	WTRTT CONN 4P5W 20A 250V	0
1301490082 Woodhead - Molex	TURNEX RECEPTACLE NEMA L14-30 CO	0
1301550157 Woodhead - Molex	PLUG 50A 3P4W 3PHASE 250V	0
1301500239 Woodhead - Molex	PWR ENT PLUG PIN & SLEEVE STR	0
1301460180 Woodhead - Molex	WATERTITE SAFEWAY PLUG	0
1301440059 Woodhead - Molex	PWR ENT RCPT NEMA5-20 STR SCREW	0
1301440063 Woodhead - Molex	6-20 CONN HI-IMPACT	0
1301470080 Woodhead - Molex	L15-30P WATERTITE PLUG BLACK	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