Power Entry Connectors - Inlets, Outlets, Modules

Image	Part Number	Description / PDF	Quantity	Rfq
	1301950154 Woodhead - Molex	TERMINAL BLOCK, 5 PORT CLAMP 222	0
	1301470122 Woodhead - Molex	PWR ENT RCPT NON-NEMA WALL SCREW	0
	1300470037 Woodhead - Molex	FA M12 ETH 4P DC FE STR SCR SHLD	0
	1301450044 Woodhead - Molex	PWR ENT RCPT NEMAL23-20 STR SCRW	0
	1301460121 Woodhead - Molex	PWR ENT RCPT NON-NEMA WALL SCREW	0
	1301500165 Woodhead - Molex	PWR ENT MOD RCPT PIN & SLEEVE	0
	1301470039 Woodhead - Molex	TURNEX INS WATERTITE CONN BLACK	0
	1301470026 Woodhead - Molex	PWR ENT PLUG NEMAL14-20 STR SCRW	0
	1301550105 Woodhead - Molex	PWR ENT PLUG NON-NEMA STR SCREW	0
	1301450068 Woodhead - Molex	PWR ENT RCPT NON-NEMA STR SCREW	0
	1301410011 Woodhead - Molex	SUPER-SAFEWAY PLUG NEMA 5-20 20A	0
	1301550159 Woodhead - Molex	PWR ENT RCPT NON-NEMA PNL SCREW	0
	1301500267 Woodhead - Molex	P&S 4P5W 60A/3PY277/480 CONNEC	0
	1301500144 Woodhead - Molex	P&S 3P 4W 20A/125/250V RECEPT	0
	1301500175 Woodhead - Molex	P&S 3P 4W 30A/3P 600V RECEPT	0
	1301460197 Woodhead - Molex	WATERTITE CONNECTOR NEMA 5-15R	0
	1301480086 Woodhead - Molex	15A 125V(5-15R)IVORY RECP DUPLEX	0
	1301550119 Woodhead - Molex	RECEPT 50A 250VDC 600VAC	0
	1301430025 Woodhead - Molex	28W09 W/00-4990 GROMMET	0
	1301410033 Woodhead - Molex	PWR ENT RCPT NEMA5-15 STR SCREW	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