Amphe-GTR™ | High-Current Power Connector

Engineered for High-Current Power Distribution.

Amphe-GTR™ is a compact, field-installable high current power connector engineered for rack PDUs, tap boxes, busway power drops and demanding industrial power-distribution systems. The multi-pole connector combines reverse-bayonet coupling, composite shells and RADSOK® contact technology in a rugged, serviceable interface.

Amphe-GTR supports operating voltages up to 600 VAC and current ratings from 30A to 120A. Available in 4- and 5-contact configurations, the connector supports conductor sizes from 10 to 2 AWG and provides IP67 ingress protection when properly mated.

Table of Contents

• Overview
• At a Glance
• Key Features & Benefits
• Why Engineers Choose Amphe-GTR™
• Typical Applications
• Technical Details
• System Integration Considerations
• RADSOK® Contact Technology
• Frequently Asked Questions

Amphe-GTR™ High Current Power Connector Overview

AI and accelerated-compute deployments are increasing rack-level power density while placing greater pressure on PDU and tap-box space, serviceability and installation time. Amphe-GTR is designed to provide a compact, field-installable connection within modern data center and industrial power-distribution architectures.

This high current power connector is particularly suited to connections between busway power drops, tap boxes and rack-level power-distribution equipment. Its reverse-bayonet coupling mechanism provides quick, positive engagement, while audible, tactile and visual indicators help installers confirm that the connector is fully mated.

Straight and 90-degree backshell options support conductor routing in compact or sealed enclosures. Amphe-GTR can also support power-distribution applications in energy storage systems, data center backup power units, heavy-duty transportation, electrified fleet charging and industrial automation.

Explore Amphenol Industrial solutions for data center power, power distribution, energy storage and factory automation.

At a Glance

• Compact, field-installable high current power connector
• 600 VAC maximum operating voltage
• 2200 VAC RMS dielectric-withstand test voltage
• Current ratings from 30A to 120A
• 4- or 5-contact configurations
• 5.7 mm silver-plated RADSOK® pins and sockets
• Supports conductor sizes from 10 to 2 AWG
• Composite reverse-bayonet shells
• Audible, tactile and visual fully mated indicators
• IP67 ingress protection when properly mated
• Operating temperature range from -55°C to +125°C
• UL 94V-0 material
• RoHS and REACH compliant

Key Features & Benefits

High-Current Power Distribution

Amphe-GTR supports current ratings from 30A to 120A, depending on the selected contact and connector configuration. Its 5.7 mm RADSOK® pins and sockets provide a high-current electrical interface for data center and industrial power-distribution equipment.

600 VAC Operating Capability

Amphe-GTR is designed for operating voltages up to 600 VAC. The separate 2200 VAC RMS dielectric-withstand rating evaluates insulation integrity under specified test conditions and is not the connector’s continuous operating-voltage rating.

Quick Reverse-Bayonet Coupling

Reverse-bayonet coupling provides quick, positive engagement without the extended rotation associated with a threaded coupling system. Audible, tactile and visual indicators help installers identify when the connector is fully mated.

Field-Installable Termination

Screw-type pressure contact termination supports field assembly. Straight and 90-degree backshell options provide conductor-routing flexibility in compact equipment layouts and enclosed systems.

Environmental Protection

Composite shells and IP67 ingress protection when properly mated help protect the connection against dust and moisture. The documented operating temperature range is -55°C to +125°C. Learn more about ingress-protection classifications from the International Electrotechnical Commission.

Contact-Sequencing Options

First Break, Last Mate and First Mate, Last Break contact arrangements are available for systems requiring defined grounding or contact sequencing. The appropriate arrangement should be selected and validated for the intended equipment architecture.

Material and Environmental Compliance

Amphe-GTR uses composite shells and UL 94V-0 material and is listed as RoHS and REACH compliant in the supplied product information. Additional information about plastics testing and flammability classifications is available from
UL Solutions.

Why Engineers Choose Amphe-GTR™

Modern power-distribution systems must balance electrical capacity, installation access, equipment density and field serviceability. Amphe-GTR provides a compact connection platform for applications where high current must be delivered through a rugged, configurable interface.

The reverse-bayonet coupling system supports quick mating and positive engagement. Audible, tactile and visual fully mated indicators give installers multiple ways to verify connector engagement, which can be useful in equipment layouts where visibility or access is limited.

Screw-type pressure contact termination allows the connector to be assembled in the field. Straight and 90-degree backshell options provide flexibility when routing conductors through compact enclosures, rack-level equipment or sealed power-distribution assemblies.

The connector’s 4- and 5-contact configurations, available contact-sequencing options and two documented keying options support different system architectures. Composite shells, IP67 protection when properly mated and an operating temperature range from -55°C to +125°C help support use in demanding data center and industrial environments.

For engineers evaluating a high current power connector for rack PDUs, tap boxes or busway power drops, Amphe-GTR combines electrical capability, field installation and configurable mechanical features in one product family.

Typical Applications

Amphe-GTR is designed for high-current connections within modular, field-serviceable power-distribution systems. Typical applications include:

• Rack power distribution units
• Data center tap boxes
• Busway power drops
• High-density data center power distribution
• AI and accelerated-compute infrastructure
• Data center backup power units
• Energy storage rack and converter connections
• Modular energy storage systems
• Charging stations for electrified fleets
• Heavy-duty transportation power distribution
• Industrial automation equipment
• Field-serviceable industrial power systems

Amphe-GTR™ Technical Details

The Amphe-GTR high current power connector has a maximum operating voltage of 600 VAC. The documented 2200 VAC RMS value is the dielectric-withstand test voltage, not the continuous operating rating. Current capability varies by connector and contact configuration within the documented 30A to 120A range.

Current capability, ingress protection, contact sequencing and available options can depend on the selected configuration, conductor, termination, installation method and operating environment. Review the latest Amphe-GTR documentation for the exact part number before approving the connector for a specific system.

System Integration Considerations

Confirm the Required Electrical Rating

Select the Amphe-GTR configuration according to the intended operating voltage, continuous current, conductor size, ambient temperature and applicable system derating. The 2200 VAC RMS dielectric-withstand value must not be used as the continuous operating-voltage rating.

Select the Correct Contact Configuration

Amphe-GTR is available with four or five contacts. Grounding and sequencing requirements should be reviewed when selecting First Break, Last Mate or First Mate, Last Break options.

Allow Adequate Cable-Routing Space

Straight and 90-degree backshell arrangements provide different conductor-routing options. The equipment layout should allow adequate space for conductor bend radius, strain relief, connector access and inspection of the fully mated connection.

Maintain the Environmental Seal

IP67 protection applies when the applicable connector configuration is correctly assembled and fully mated. Cable selection, sealing components, termination quality and complete connector engagement can affect environmental performance.

RADSOK® Contact Technology

Amphe-GTR uses 5.7 mm silver-plated RADSOK® pins and sockets. The twisted-grid contact geometry increases available contact surface area, helping support low contact resistance and low insertion force in a high-current connection.

Learn more about the construction, capabilities and applications of Amphenol Industrial RADSOK® contact technology.

Frequently Asked Questions

What is the Amphe-GTR™ high current power connector?

Amphe-GTR is a compact, multi-pole, field-installable high current power connector designed for AC power-distribution systems. It combines composite shells, reverse-bayonet coupling, screw-type pressure termination and RADSOK® contact technology.

What is Amphe-GTR used for?

Amphe-GTR is used in rack PDUs, tap boxes, busway power drops, data center backup power units, energy storage systems, charging infrastructure, heavy-duty transportation and industrial automation equipment.

What is the Amphe-GTR operating-voltage rating?

Amphe-GTR is designed for operating voltages up to 600 VAC. The exact connector configuration and complete system requirements should be confirmed using the latest Amphenol product documentation.

What does the 2200 VAC RMS rating mean?

The 2200 VAC RMS value is a dielectric-withstand test voltage used to evaluate insulation integrity under specified test conditions. It is not the connector’s continuous operating voltage. The maximum operating voltage is 600 VAC.

What current rating does Amphe-GTR support?

Amphe-GTR configurations support current ratings from 30A to 120A. The applicable rating depends on the selected connector, contact configuration, conductor and operating conditions.

What conductor sizes does Amphe-GTR support?

The documented conductor range is 10 to 2 AWG. Exact conductor and termination requirements should be confirmed for the selected part number.

Is Amphe-GTR IP67 rated?

Amphe-GTR provides IP67 ingress protection when the applicable connector configuration is correctly assembled and fully mated.

Is Amphe-GTR field installable?

Yes. Amphe-GTR uses screw-type pressure contact termination and is designed to support field installation. Assembly should follow the latest instructions for the exact connector and conductor configuration.

What backshell options are available?

Straight and 90-degree backshell options are available to support conductor routing in different enclosure and equipment layouts.

What is reverse-bayonet coupling?

Reverse-bayonet coupling is the connector’s mechanical mating and locking system. It provides quick, positive engagement and works with audible, tactile and visual indicators that help confirm full mating.

Can Amphe-GTR connect a busway power drop to a rack PDU?

Yes. Rack PDUs, tap boxes and busway power drops are primary applications for Amphe-GTR. The connector can provide a field-serviceable interface between a busway power drop or tap box and rack-level power-distribution equipment.

Which industries use Amphe-GTR?

Amphe-GTR supports power-distribution applications in high-density data centers, energy storage systems, heavy-duty transportation, electrified fleet charging and industrial automation.