IEC connectors, also known as IEC appliance couplers, provide standardized detachable power connections for electrical equipment. The IEC 60320 standard defines a range of connector configurations that enable manufacturers to create equipment with universal power input while allowing regional power cord customization.
WEUP IEC connectors offer comprehensive coverage of IEC 60320 configurations. Our product range includes ST-A01 series connectors with integrated fuse holders and switch options, designed for industrial and commercial applications requiring reliable power distribution.
Understanding IEC 60320 Connectors
What Is IEC 60320?
IEC 60320 is the International Electrotechnical Commission standard that defines appliance couplers – detachable power cord connections for electrical equipment. The standard specifies configurations with specific current ratings, voltage ratings, and temperature ratings to ensure safe interoperability between equipment and power cords worldwide.
Before IEC 60320, each country developed independent power cord standards, creating a fragmented landscape of incompatible connectors. The IEC standard enabled equipment manufacturers to design products with universal power input while consumers and commercial buyers could use locally-appropriate power cords.
Key Standard Specifications
IEC 60320 connectors are classified by several key parameters:
- Current Rating – from 2A to 16A depending on connector size
- Voltage Rating – typically 250V AC for most configurations
- Temperature Rating – 70°C, 120°C, or 155°C maximum pin temperature
- Contact Configuration – Class I (with earth) or Class II (double insulated)
WEUP IEC Connector Product Range
ST-A01 Series with Integrated Fuse
The ST-A01 series combines IEC inlet connectors with integrated fuse holders for compact power entry design. These connectors integrate the inlet, fuse holder, and switching functions in a single component, reducing assembly complexity and board space requirements.
Popular configurations include:
- ST-A01-004L3 – IEC inlet with fuse holder and switch
- ST-A01-004L – Standard IEC inlet with fuse holder
- ST-A01-003JL61 – IEC inlet with multiple pole switch configuration
Integrated Protection Options
WEUP IEC connectors with integrated switches provide convenient power control directly at the equipment entry point. These combination units eliminate the need for separate panel-mounted power switches and simplify the overall assembly.
The integrated fuse holder provides overcurrent protection at the power entry point, protecting both the equipment and the connected power cord from fault conditions.
IEC Connector Applications
Data Centers and Server Rooms
Data centers rely heavily on IEC connectors for server, networking, and storage equipment power connections. The integrated fuse and switch options provide convenient power control and overcurrent protection at each piece of equipment. When equipment fails or requires maintenance, disconnecting power takes seconds without tools.
Industrial Equipment
Industrial equipment manufacturers use IEC connectors to enable their products to work globally with appropriate regional power cords. A machine shipped from China to Germany includes an IEC inlet and can be connected to a European power cord without modification. This flexibility simplifies logistics and reduces inventory requirements.
According to UL and IEC safety standards, detachable power cord connections must meet specific requirements for secure coupling and appropriate current carrying capacity.
Medical and Laboratory Equipment
Medical devices and laboratory instruments use IEC connectors for the same flexibility benefits. The integrated fuse provides critical overcurrent protection for sensitive equipment, while the standardized IEC interface ensures compatibility with power infrastructure worldwide.
Selecting the Right IEC Connector
Consider Protection Requirements
Select an IEC connector with integrated fuse protection if overcurrent protection is required at the power entry point. The fuse should be sized to protect the equipment power input circuitry while coordinating with any upstream overcurrent protection in the building electrical system.
Consider Switching Requirements
If power switching at the equipment entry point is required, select an IEC connector with integrated switch. This eliminates the need for a separate panel-mounted power switch and provides a clean, integrated solution.
Consider Mounting and Integration
WEUP IEC connectors mount through standard panel cutouts. Verify that the connector dimensions fit your panel design and that the available panel space accommodates the selected configuration.
WEUP IEC Connector Certifications
All WEUP IEC connectors carry certifications supporting global market access:
- CE marking – European Union compliance for products sold in EU markets
- UL listing – Underwriters Laboratories standards for North American safety
- cUL certification – Canadian standards for the Canadian market
Related WEUP Products
Beyond IEC connectors, WEUP offers complementary power and switch products:
- Rocker Switches – KCD series rockers for equipment power switching
- Push Button Switches – control interface switches
- Toggle Switches – industrial panel switches
- Micro Switches – precision position sensing switches
Contact WEUP
WEUP IEC connectors combine standardized compliance with reliable performance for global market applications. Contact our engineering team to discuss your IEC connector requirements or to request samples for evaluation.