New Space-saving ePower Connectors from Amphenol Ideal for High Amperage, Multi-phase Motor Applications

RADSOK contact technology increases available amperage and voltage

Jun 28, 2010, 15:49 ET from Amphenol Industrial Operations

SIDNEY, N.Y., June 28 /PRNewswire/ -- Amphenol Industrial, a global leader in interconnect systems, now offers a connector series designed to eliminate bulky and space-consuming cable glands on motors, AC/DC inverters and converters and other high amperage equipment. The new IP67-rated ePower 400A connectors are rated to 1,000-volts DC and feature integrated EMI shielding.

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The new ePower family of connectors is specifically designed to meet the demanding needs of modern electrification programs in high voltage and high amperage applications, such as power converters, hybrid electric vehicles, heavy equipment electrification, two- and three-phase motors and starter generators in the military, aerospace and industrial markets.

The connector series incorporates Amphenol's patented RADSOK contact system to achieve higher current ratings, as well as to lower temperature rise and contact resistance, as compared to other contact methods, in a compact, lightweight package. RADSOK technology, an electrical terminal based on a hyperbolic grid configuration, enables lower insertion forces than standard contacts for easier mating.

Because it delivers more power in less space, the RADSOK contact system eliminates having to run wires through bulky cable glands in traditional three-phase motor assemblies and similar equipment to deliver power. The result is a more reliable, user-friendly connection with a 40% smaller footprint to reduce the overall enclosure size, while simplifying maintenance issues. One ePower connector can replace three conventional connectors, saving both space and cost.

Amphenol's ePower connectors come in two- and three-pin power configurations ranging from 100 amps through 500 amps per contact and have the capacity for two small gauge signal contacts for HVIL (high voltage interlock loop) purposes. The IP2X style sockets are available in crimp, lug or bus bar termination. Cable plugs have IP2X style crimp pins and can accommodate shielded wires.

Multiple wire sizes from 50 mm(2) to 95 mm(2) can be used with the new connectors, which feature an all-aluminum shell, strain relief for the jacketed cable incorporated into the shell and excellent vibration resistance.

With millions of parts in the field, the patented RADSOK electrical connection has proven to be extremely reliable, with almost no reported connection failures in Amphenol RADSOK-designed applications.  RADSOK utilizes the tensile strength properties of the flat, high conductivity alloy grid for the high normal forces required for conductivity, while providing a large conductive surface area.  This results in a correspondingly low voltage drop and low temperature rise while maintaining low insertion forces.

Pricing for the 400 amp, 3 pin cable plug and receptacle pair starts at $243.84 per pair in quantities of 100 sets.  Delivery is 14 weeks ARO.

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READER SERVICE INQUIRIES:  :  Please forward all reader service inquiries to Robert Fralicker at Amphenol Industrial Operations, Amphenol Corporation, 40-60 Delaware Ave, Sidney, N.Y., 13838-1395; e-mail:; Web:  

Editor's Note:  Amphenol Industrial Operations, headquartered in a 675,000 square foot facility in Sidney, N.Y., provides a full range of high reliability connectors and interconnection systems specifically for the industrial markets including base stations, rail/mass transit, process control, automotive manufacturing, heavy equipment, and petrochemical/power generation.  

Products include ruggedized-for-industry cylindrical, fiber optic, rectangular, and industrialized versions of Amphenol's MIL-C-5015 cylindrical, MIL-C-26482 miniature cylindrical and GT reverse bayonet cylindrical connectors. It employs more than 1,400 people and is both ISO9001 and MIL-STD-790 certified.  

Amphenol Industrial Operations is a division of Amphenol Corporation, Wallingford, CT, one of the largest manufacturers of interconnect products in the world, with year 2006 sales topping $2.5 billion.

Editorial Contact:

The Simon Group, Inc.

Beth Smith or Joanna Puglisi-Barley

Phone:  (215) 453-8700


SOURCE Amphenol Industrial Operations