Power Entry Connectors - Inlets, Outlets, Modules

Part Number	Description / PDF	Quantity
F31S28A Altech Corporation	RECPF20A2P3W6H250V BLUEIP6715DEG	45
S31S25A Altech Corporation	PIN & SLEEVEPLUG 20A 250VAC 2P 3	124
F31S13A Altech Corporation	RECPF20A2P3W4H120V YELIP4415DEGP	15
DMRBA Altech Corporation	PWR ENT RCPT DIN SCREW	60104
K31S20A Altech Corporation	PIN&SLEEVE CONNEC 20A 250VAC 2P	724
D31S75A Altech Corporation	RECPF20A2P3W5H277V GRYIP6725DEGW	55
S31S15A Altech Corporation	PIN & SLEEVEPLUG 20A 120VAC 2P 3	85
F31S70A Altech Corporation	RECPF20A2P3W5H277V GRY IP44PANEL	20
D31S25A Altech Corporation	RECPF20A2P3W6H250V BLUEIP6725DEG	54
S31S50A Altech Corporation	PIN & SLEEVEPLUG 20A 480VAC 2P 3	133
DMRGR-M Altech Corporation	RCPT DIN RAIL MNT 15A IP44 GRAY	12
K31S15A Altech Corporation	PIN&SLEEVE CONNEC 20A 120VAC 2P	5
D31S11A Altech Corporation	RECPF20A2P3W4H120V YELIP44SMALLW	10
S31S20A Altech Corporation	PIN & SLEEVEPLUG 20A 250VAC 2P 3	696
K31S25A Altech Corporation	PIN&SLEEVE CONNEC 20A 250VAC 2P	96
K31S55A Altech Corporation	PIN&SLEEVE CONNEC 20A 480VAC 2P	29
F31S75A Altech Corporation	RECPF20A2P3W5H277V GRY IP67PANEL	45
K31S50A Altech Corporation	PIN&SLEEVE CONNEC 20A 480VAC 2P	10
F31S55A Altech Corporation	RECPF20A2P3W7H480V RED IP67PANEL	77
F31S25A Altech Corporation	RECPF20A2P3W6H250V BLUEIP67PANEL	113

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