Power Entry Connectors - Inlets, Outlets, Modules

Part Number	Description / PDF	Quantity
A32S56A Altech Corporation	INLTM30A2P3W7H480V REDIP67ANGPAN	0
D52S21A Altech Corporation	RECPF30A4P5W9H120208V BLUEIP44SM	8
A31S76A Altech Corporation	INLTM20A2P3W5H277V GRYIP67ANGPAN	0
D41S21A Altech Corporation	RECPF20A3P4W9H250V BLUEIP44SMALL	8
S53.55A Altech Corporation	PIN & SLEEVEPLUG60A277480V 4P 5W	0
K32S75A Altech Corporation	PIN&SLEEVE CONNEC 30A 277VAC 2P	0
A51S26A Altech Corporation	INLTM20A4P5W9H120208V BLUE IP67A	0
D42S51A Altech Corporation	RECPF30A3P4W7H480V REDIP44SMALLW	0
A42S66A Altech Corporation	INLTM30A3P4W12H120250V ORANGE IP	0
D31S71A Altech Corporation	RECPF20A2P3W5H277V GRYIP44SMALLW	10
S51S25A Altech Corporation	PIN & SLEEVEPLUG20A120208V 4P 5W	0
K41S35A Altech Corporation	PIN&SLEEVE CONNEC 20A 400VAC 3P	0
G31S10A Altech Corporation	INLTM20A2P3W4H120V YELIP4415DEGW	0
A52S76A Altech Corporation	INLTM30A4P5W5H347600V BLKIP67ANG	0
F52S23A Altech Corporation	RECPF30A4P5W9H120208V BLUEIP4415	0
A52S31A Altech Corporation	INLTM30A4P5W6H400V RED IP44ANGPA	0
S32S10A Altech Corporation	PIN & SLEEVEPLUG 30A 120VAC 2P 3	0
A32S21A Altech Corporation	INLTM30A2P3W6H250V BLUEIP44ANGPA	0
F51S33A Altech Corporation	RECPF20A4P5W6H400V REDIP4415DEGP	0
F42S55A Altech Corporation	RECPF30A3P4W7H480V RED IP67PANEL	3

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