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Drilling Rig Electrical · NEMA Size 3 contact renewal set

Ross Hill 0409-0068-00 Contact Kit, 55-153677G002

Ross Hill 0409-0068-00 identifies the 55-153677G002 NEMA Size 3 three-pole contact set; verify the complete device number and all damaged hardware.

Ross Hill 0409-0068-00 identifies the 55-153677G002 NEMA Size 3 three-pole contact set; verify the complete device number and all damaged hardware. Use the complete installed identifiers and equipment ratings as the ordering reference. Availability, condition, price, and lead time are confirmed for each request.

Independent supplier. Edmundson Industrial is not appointed, endorsed, or sponsored by any manufacturer named on this page. Ross Hill, NOV, GE, ABB, and other manufacturer names and part numbers appear for identification only. Their use does not imply authorization, endorsement, or a current manufacturer relationship. Availability, condition, price, and lead time are confirmed for each request.

Identification details for Ross Hill 0409-0068-00
RHCC part number0409-0068-00
Part descriptionCONTACT KIT-MS3
Manufacturer reference55-153677G002
System contextMCC
Manufacturer-documented device contextNEMA Size 3, three-pole CR305 and CR306 devices
Manufacturer-documented kit contents3 movable and 6 stationary contacts with springs
Primary renewal-table quantity1 set required per three-pole device
Maintenance boundaryReplace worn contacts as a set; ABB instructions say not to file them

Why replace the contacts as a set?

ABB treats the movable contacts, stationary contacts, and springs as one renewal part. The same instructions say contacts should be replaced when the silver tip is nearly gone and the support is exposed. They also say not to file or dress the contacts because doing so removes contact material.

What does Size 3 and three-pole mean here?

The exact kit number is printed in ABB instructions for NEMA Size 3 CR305 contactors and CR306 starters in three-pole form. It is not the number shown for Size 4, and the same documents separate two- and three-pole coil instructions from four- and five-pole forms.

This page therefore does not publish the kit as universal across all 200-line, 300-line, four-pole, or five-pole devices. Confirm the device family, NEMA size, pole count, and the contact-set number before selection.

Also searched as

0409-0068-00 · 0409006800 · 55-153677G002 · 55153677G002 · Size 3 three-pole contact kit · MS3 contact set

What to send with your request

Count the poles and show the worn set. The catalog number alone cannot show prior modifications or missing hardware.

  • The full RHCC number and 55-153677G002 reference
  • The complete contactor or starter number and its NEMA size
  • Pole count and a photograph of all stationary and movable contacts
  • A photograph of the old kit package or molded markings, if available
  • Whether the cover, movable arm, retainer, or other hardware is also damaged
  • Quantity required and your need-by date

Related

Identification checkpoint

For RHCC 0409-0068-00, confirm manufacturer reference: 55-153677G002; manufacturer-documented device context: NEMA Size 3, three-pole CR305 and CR306 devices; manufacturer-documented kit contents: 3 movable and 6 stationary contacts with springs. Use the installed label and complete suffix before treating another item as equivalent.

FAQ

How many contacts are in 55-153677G002?
ABB Size 3 renewal instructions describe one set containing three movable contacts and six stationary contacts with springs for a three-pole device.
Should worn contacts be filed?
ABB's maintenance instructions say not to file or dress these contacts because that removes contact material. They describe replacement when the silver tip is nearly gone and the support is exposed.
Will this kit fit every Size 3 contactor or starter?
No universal fit is claimed. The exact reference appears in ABB Size 3 CR305 and CR306 three-pole instructions. Confirm device family, NEMA size, pole count, and the existing kit number.
What is Ross Hill 0409-0068-00?
Ross Hill 0409-0068-00 identifies the 55-153677G002 NEMA Size 3 three-pole contact set; verify the complete device number and all damaged hardware.

Availability & Quote

Request a Quote or send the part number to sales@edmundsonindustrial.com (832) 975-8827 Houston, TX.

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