Power Entry Connectors - Inlets, Outlets, Modules

Part Number	Description / PDF	Quantity
1301500124 Woodhead - Molex	P&S 3P 4W 20A/125/250V CONNECT	0
1301420023 Woodhead - Molex	SUPER-SAFEWAY CONN NEMA L7-20 20	0
1301450033 Woodhead - Molex	HI-AMP TURNEX L6-20 CONN 2P3W	0
1301470038 Woodhead - Molex	PWR ENT RCPT NON-NEMA STR SCREW	2
1301500293 Woodhead - Molex	P&S 2P 3W 30A/125V PLUG WTRTT	0
1301410022 Woodhead - Molex	PWR ENT PLUG NEMA6-15 STR SCREW	0
1301500046 Woodhead - Molex	20A/240V 2P3W MI WATERTITE	0
1301550096 Woodhead - Molex	PWR ENT PLUG NON-NEMA STR SCREW	0
1301500304 Woodhead - Molex	460MIXW SERIES REPLACEMENT COVER	0
1301500073 Woodhead - Molex	P&S 2P 3W 30A/277V RCPT.-SPLPF	0
1301470173 Woodhead - Molex	PWR ENT RCPT NEMAL14-30 WALL SCR	0
1301480112 Woodhead - Molex	15A 250V(6-15R)C R RECPT DUPLEXR	0
1301500049 Woodhead - Molex	P&S 2P 3W 20A/125V PLUG SPLPF	0
1301500074 Woodhead - Molex	P&S 2P 3W 30A/250V RCPT.-SPLPF	0
1301470137 Woodhead - Molex	TURNX HI-AMP WATRTIT RECP	0
1301460084 Woodhead - Molex	L5-15P WATERTITE PLUG / GCM CLEA	0
1301420042 Woodhead - Molex	PWR ENT PLUG NEMAL23-30 STR SCRW	0
1301410005 Woodhead - Molex	2547 SPECIAL PACKING SPECIALPRIC	0
1301440052 Woodhead - Molex	15A/125V PLG CRW HI-IMPCT YEL YE	0
1301460003 Woodhead - Molex	PWR ENT INLET/OUT NEMA5-15 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