Power Entry Connectors - Inlets, Outlets, Modules

Part Number	Description / PDF	Quantity
A31S21A Altech Corporation	INLTM20A2P3W6H250V BLUEIP44ANGPA	0
A42S71A Altech Corporation	INLTM30A3P4W5H600V BLK IP44ANGPA	0
D41S35A Altech Corporation	RECPF20A3P4W6H400V REDIP6725DEGW	0
D41S30A Altech Corporation	RECPF20A3P4W6H400V REDIP44LARGEW	0
D51S20A Altech Corporation	RECPF20A4P5W9H120208V BLUEIP44LA	0
A31S12A Altech Corporation	CONN 20A 2P ANGLED 120V YELL IP4	7
K42S60A Altech Corporation	PIN&SLEEVE CONNEC30A120250V 3P 4	0
D51S51A Altech Corporation	RECPF20A4P5W7H277480V REDIP44SMA	0
A42S02A Altech Corporation	INLTM30A3P4W3H380440V RED IP44PA	0
F51S28A Altech Corporation	RECPF20A4P5W9H120208V BLUEIP6715	0
S41S50A Altech Corporation	PIN & SLEEVEPLUG 20A 480VAC 3P 4	0
K41S65A Altech Corporation	PIN&SLEEVE CONNEC20A120250V 3P 4	0
A51S36A Altech Corporation	INLTM20A4P5W6H400V RED IP67ANGPA	0
F52S28A Altech Corporation	RECPF30A4P5W9H120208V BLUEIP6715	0
F52S75A Altech Corporation	RECPF30A4P5W5H347600V BLK IP67PA	0
F42S33A Altech Corporation	RECPF30A3P4W6H400V REDIP4415DEGP	0
PMRBA Altech Corporation	RECEPTACLEPNL MNT 15A125VAC IP54	55
F42S63A Altech Corporation	RECPF30A3P4W12H120250V ORANGEIP4	0
D41S51A Altech Corporation	RECPF20A3P4W7H480V REDIP44SMALLW	8
S42S35A Altech Corporation	PIN & SLEEVEPLUG 30A 400VAC 3P 4	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