ER Series SAE J1772

The ER Series SAE J1772 is an AC electric vehicle charging connector and cable platform designed for reliable Level 1 and Level 2 charging. Supporting current ratings from 20A through 80A and voltage ratings up to 250V AC, the ER Series provides a durable Type 1 charging interface for electric vehicles, plug-in hybrid vehicles, electric vehicle supply equipment (EVSE), fleet charging systems, and other eMobility applications.

Designed for repeated everyday charging, the ER Series combines low insertion and withdrawal force, an ergonomic IP67-rated charging handle, more than 10,000 mating cycles, and environmental performance across demanding operating conditions. Multiple current ratings and configuration options give OEMs and charging-system designers flexibility when integrating SAE J1772 connectivity into residential, commercial, fleet, and industrial charging equipment.

Table of Contents

• Overview
• At a Glance
• Key Features & Benefits
• Typical Applications
• Technical Details
• Installation & Compatibility
• Standards & Compliance
• Resources & Support
• Frequently Asked Questions

ER Series SAE J1772 Overview

The ER Series SAE J1772 is designed around the Type 1 conductive charging interface widely used for AC electric vehicle charging in North America. The system provides the physical and electrical interface between compatible electric vehicle supply equipment and a vehicle inlet, supporting Level 1 and Level 2 charging architectures.

For charging-system manufacturers and vehicle OEMs, connector reliability is critical because the charging interface may be connected and disconnected thousands of times during the service life of the equipment. The ER Series is designed for more than 10,000 mating cycles while maintaining an insertion and withdrawal force of less than 75N. This combination helps provide a durable charging connection without making everyday operation unnecessarily difficult for drivers and charging-equipment users.

Multiple electrical configurations allow the same product family to address a broad range of charging requirements. Available current ratings include 20A, 32A, 40A, 50A, and 80A, with voltage capability up to 250V AC. This gives engineers flexibility when specifying charging hardware for applications ranging from residential charging equipment to higher-current commercial and fleet EVSE.

At a Glance

• Connector interface: SAE J1772 Type 1
• Charging application: AC Level 1 and Level 2
• Rated voltage: Up to 250V AC
• Current ratings: 20A, 32A, 40A, 50A, and 80A
• Charging modes: Modes 2 and 3
• Mating durability: More than 10,000 cycles
• Insertion/withdrawal force: Less than 75N
• Charging handle: IP67-rated ergonomic design
• Degree of protection: Type 3S
• Operating temperature: -30°C to +50°C
• Storage and transport temperature: -40°C to +80°C
• Primary applications: EVSE, electric vehicles, PHEVs, commercial charging, fleet charging, and eMobility equipment

Key Features & Benefits

SAE J1772 Type 1 Charging Interface: The ER Series provides the familiar Type 1 interface used for conductive AC charging of compatible electric vehicles and plug-in hybrid electric vehicles. This makes it suitable for charging-equipment manufacturers and vehicle platforms designed around SAE J1772.

Current Ratings up to 80A: Available 20A, 32A, 40A, 50A, and 80A options allow designers to match the charging cable to the electrical requirements of the EVSE and vehicle application rather than using a single configuration across every charging system.

Level 1 and Level 2 AC Charging: The ER Series supports AC charging architectures ranging from standard Level 1 installations to higher-power Level 2 EVSE with voltage capability up to 250V AC.

Low Insertion and Withdrawal Force: A contact system designed for less than 75N insertion and withdrawal force helps reduce operating effort during repeated vehicle charging while maintaining a secure electrical connection.

More Than 10,000 Mating Cycles: High mechanical durability supports charging stations, fleet systems, and other applications where the connector may be handled and mated frequently throughout its operating life.

Environmental Protection: The ergonomic charging handle provides IP67 protection, while the product platform features a Type 3S degree of protection. This helps support charging equipment exposed to moisture, dust, precipitation, and changing outdoor conditions when properly integrated and used.

Wide Operating Temperature Range: An operating range of -30°C to +50°C supports EV charging applications across cold-weather and warm-weather environments, while the specified storage and transport range extends from -40°C to +80°C.

Multiple Configuration Options: Available cable, current-rating, cap, and secondary-lock options allow the ER Series to be configured for different EVSE and vehicle integration requirements.

Typical Applications

The ER Series SAE J1772 is designed for AC charging applications where a dependable Type 1 vehicle charging connection is required. Its combination of multiple current ratings, repeated-mating durability, environmental protection, and low operating force makes it suitable for both consumer-facing and industrial charging environments.

• Residential EV charging: Home Level 1 and Level 2 charging equipment for compatible electric and plug-in hybrid vehicles.
• Commercial EV charging: Workplace, parking, destination, hospitality, and other public or semi-public charging installations.
• Electric vehicle supply equipment: AC EVSE systems requiring an SAE J1772 Type 1 vehicle connector.
• Fleet charging: Charging infrastructure for electric passenger vehicles, service vehicles, commercial vehicles, and managed fleets.
• Electric and hybrid-electric vehicles: Vehicle charging applications designed around a Type 1 conductive charging inlet.
• Industrial eMobility: Electrified equipment and mobility platforms requiring a rugged AC charging interface.

For additional high-voltage and power interconnect solutions used throughout electric and hybrid-electric vehicle systems, explore the Amphenol Industrial eMobility portfolio.

ER Series SAE J1772 Technical Details

Electrical

• Rated voltage: Up to 250V AC
• Available current ratings: 20A, 32A, 40A, 50A, and 80A
• Charging type: AC
• Charging modes: Modes 2 and 3
• Interface: SAE J1772 Type 1

Mechanical

• Mating durability: More than 10,000 cycles
• Insertion/withdrawal force: Less than 75N
• Charging handle: Ergonomic design

Materials

• Shell: PC
• Contacts: Copper
• Sealing components: Silicone
• Cable: TPE

Environmental

• Charging-handle protection: IP67
• Degree of protection: Type 3S
• Salt spray: 96 hours
• Operating temperature: -30°C to +50°C
• Storage and transport temperature: -40°C to +80°C

Installation & Compatibility

The ER Series is intended for use with compatible SAE J1772 Type 1 charging interfaces. System designers should select the charging cable according to the required current rating, voltage, cable length, connector configuration, charging-equipment architecture, and vehicle interface.

Charging-system performance depends on the complete electrical system rather than the connector alone. Cable size, protective devices, EVSE control architecture, thermal conditions, installation practices, and vehicle charging capability should all be evaluated when determining the appropriate ER Series configuration.

Where additional accessories such as protective caps or secondary locking provisions are required, the appropriate configuration should be identified during product selection. Use approved product drawings and application documentation when designing the charging connector into new equipment.

Standards & Compliance

The ER Series is designed around the SAE J1772 conductive charging interface for electric and plug-in hybrid vehicles. SAE J1772 defines physical, electrical, functional, and performance requirements for conductive charging and the interface between compatible vehicle inlets and charging connectors.

The ER Series is UL 2251 certified and complies with applicable SAE J1772 and IEC 62196-1/2 requirements. UL 2251 addresses plugs, receptacles, and couplers used with electric vehicles and charging systems.

• SAE J1772 Electric Vehicle Conductive Charge Coupler
• UL Solutions EV Charging Infrastructure Standards Information

Resources & Support

• ER Series SAE J1772 Product Catalog – electrical, mechanical, environmental, material, and ordering information.
• ER Series SAE J1772 Application Note – product background and application information for SAE J1772 AC charging.
• ER Series SAE J1772 Product News – additional product and application information.
• eMobility Solutions – explore additional interconnect products for electric and hybrid-electric vehicles.

The ER Series SAE J1772 provides a durable AC charging connection for vehicle, EVSE, commercial, fleet, and eMobility applications. Contact our team for product selection, drawings, samples, cable configurations, and application-specific charging requirements.

Frequently Asked Questions

What is the ER Series SAE J1772 connector?

The ER Series SAE J1772 is a Type 1 AC electric vehicle charging connector and cable platform designed for Level 1 and Level 2 charging. It supports current ratings from 20A through 80A and voltage ratings up to 250V AC.

What current ratings are available for the ER Series SAE J1772?

The ER Series is available in 20A, 32A, 40A, 50A, and 80A configurations, allowing charging-system designers to select the appropriate current rating for the EVSE and vehicle application.

Does the ER Series support both Level 1 and Level 2 charging?

Yes. The ER Series supports AC Level 1 and Level 2 electric vehicle charging applications using the SAE J1772 Type 1 interface.

How many mating cycles is the ER Series designed to withstand?

The ER Series is designed for more than 10,000 mating cycles, making it suitable for applications where the charging connector is repeatedly connected and disconnected during normal operation.

What is the insertion and withdrawal force of the ER Series connector?

The ER Series is designed for an insertion and withdrawal force of less than 75N, helping provide easier repeated operation while maintaining a secure charging connection.

What environmental protection does the ER Series provide?

The ER Series features an IP67-rated charging handle and a Type 3S degree of protection. Its specified operating temperature range is -30°C to +50°C.

Is the ER Series SAE J1772 UL certified?

Yes. The ER Series is UL 2251 certified and is designed to comply with applicable SAE J1772 and IEC 62196-1/2 charging-interface requirements.

Where is the ER Series SAE J1772 typically used?

Typical applications include residential and commercial EV charging stations, electric vehicle supply equipment, fleet charging, electric and plug-in hybrid vehicles, and other AC eMobility charging systems.