Download document () of 20
Clear selection
Download selection
Costa Rica Select your location
Submit form in new Tab
We make what matters work*
Submit form in new Tab
Products
Digital
Services
Markets
Support
Company
MyEaton
Quick links

Medium-voltage cable accessories

Transformer OEM equipment

Eaton offers a complete range of Cooper Power series primary medium-voltage bushings for liquid-filled distribution transformers and switchgear, as well as multiple switches for easy reconnect of transformer windings from series to parallel with a simple turn of the switch on a de-energized transformer.

Contact me about this solution
Two-position sidewall (horizontal) and cover (vertical) mounted Loadbreak switches catalog 600 A – 1400 A 1.2 kV class plastic (HTN) molded tri-clamp secondary bushings catalog
Back to search
One-piece design
Reliable operation
Streamline operations
Simplified design
Externally operable
Easy to use

Core features

  • Quality OEM bushings and bushing wells for single- and three-phase distribution transformers
  • Removable stud bushing well provisions for easy removal of broken parts from both the bushing well and insert
  • 200 kV BIL bushings available for 35 kV applications
  • 900 amp copper bushing options
  • Series multiple switches offer easy reconnect of transformer windings from series to parallel with a simple turn of the switch on a de-energized transformer
  • Tap changer switches offer externally operable switching to regulate voltage as lines grow
  • Sectionalizing loadbreak switches offer transfer of apparatus from one source to another without loss of service continuity

Transformer OEM equipment

This video discusses the core features and key benefits of Eaton’s Cooper Power series transformer OEM equipment.

Features reliable, one-piece construction

The 200 A 35 kV three-phase rated integral loadbreak bushing meets all the requirements of IEEE Std 386 standard (separable insulated connector systems) and combines the advantages of a reliable one-piece design with the operating features required for underground distribution switching.

Replace multiple switches with sectionalizing loadbreak switch

Eaton's Cooper Power series four-position sectionalizing loadbreak switch improves system reliability with make-before-break switching operations and may replace multiple two position loadbreak switches for a simplified design and operational procedures.

Externally operable switching for ease of use

Tap changer switches offer externally operable switching to regulate voltage as lines grow. Sectionalizing loadbreak switches offer transfer of apparatus from one source to another without loss of service continuity.
Specifications

Details

Type primary bushings
 Current rating (A)
 Voltage rating (kV)
Bushing wells
 200 15, 25, 35
Integral loadbreak bushing 3-phase rated
 200 35
Deadbreak apparatus bushing
 600 15/25, 35
Deadbreak PUSH-OP apparatus bushing
 600 15/25, 35

200 A integral loadbreak bushing specification information

  • 200 A, 35 kV three-phase rated integral loadbreak bushing meeting the requirements of IEEE Std 386 2006 standard No. 1A (large 35 kV class interface)
  • Voltage and current ratings in accordance with IEEE Std 386 2006 standard

600 A PUSH-OP deadbreak bushing specification information

  • 600 A deadbreak apparatus bushing shall be compatible with 600 A PUSH-OP connectors
  • Complete with plated copper finger contacts to accept PUSH-OP probe, to achieve a non-bolted connection
  • Voltage and current ratings in accordance with IEEE Std 386-2006 standard

200 A HTN Tri-Clamp bushing well specification information

  • Molded-in semi-conductive shield
  • 35 kV, 150 kV BIL
  • HTN material
  • Removable stud shall have provisions for easy removal of broken parts from both the bushing well and insert
  • Voltage and current ratings in accordance with IEEE Std 386-2006 standard
Download Links
  • Commercial and industrial medium-voltage electrical distribution products brochure
    This brochure outlines Eaton’s Cooper Power series broad commercial and industrial medium-voltage transformer, switchgear, fuse, sectionalizer, switch, regulator, tool, OEM equipment, cable accessory, lightning arrester, power capacitor and recloser offerings.
    (PDF 2 MB , 01/24/2023)
  • Storm season rapid response information
    Eaton’s Cooper Power series product team works together with the engineering services team to provide a full storm response procedure to quickly ramp up operations in anticipation of storm impact for fast product shipment and remediation of damaged apparatus during storm recovery.
    (PDF 619 KB , 07/25/2019)
  • 100 A externally operated one-, two- and three-phase tap-changer switch catalog
    This catalog describes features, ratings and ordering information for Eaton's Cooper Power series 100 A externally operated one-, two- and three-phase tap-changer switch.
    (PDF 880 KB , 06/30/2025) Updated
  • 150 A externally operated tap-changer switch catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 150 A externally operated tap-changer switch which eliminates many of the hazards associated with manual internal tap changing of distribution transformers because line crews need not be exposed to high voltage conductors and hot transformer fluids.
    (PDF 707 KB , 07/31/2015)
  • 150 A single-phase series multiple (dual voltage) switches catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series single-phase series multiple (dual voltage) switch which change connection of de-energized transformer windings between series and parallel to provide different common transformer voltage ratios.
    (PDF 227 KB , 06/27/2025) Updated
  • 150 A two- and three-phase series multiple (dual voltage) switches catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 150 A externally operated two- or three-phase series multiple (dual voltage) switch which change connection of de-energized transformer windings between series and parallel to provide different common transformer voltage ratios.
    (PDF 314 KB , 06/30/2025) Updated
  • 200 A 15 and 25 kV class bushing well insulated plug catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 200 A 15 and 25 kV class bushing well insulated plugs.
    (PDF 141 KB , 11/19/2015)
  • 200 A 15, 25 and 28 kV class epoxy bushing well with fixed or removable stud catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 200 A 15, 25 and 28 kV class bushing wells which are designed for the termination of primary winding leads at the front plate of fluid-filled apparatus rated at either 8.3/14.4 kV, 15.2/26.3 kV or 16.2/28.0 kV (for Canadian applications).
    (PDF 526 KB , 03/30/2016)
  • 200 A 15, 25 and 28 kV class plastic (HTN) molded bushing well with fixed or removable stud catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 200 A 15, 25 and 28 kV class bushing wells which are designed for the termination of primary winding leads at the front plate of fluid-filled apparatus rated at either 8.3/14.4 kV, 15.2/26.3 kV or 16.2/28.0 kV (for Canadian applications).
    (PDF 742 KB , 07/31/2015)
  • 200 A 15/25 kV class epoxy bushing well (2.25" tank hole and fixed stud only) catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series 200 A 15/25 kV class bushing well which is designed for the termination of primary winding leads at the front plate of fluid-filled apparatus rated at either 8.3/14.4 kV or 15.2/26.3 kV.
    (PDF 742 KB , 07/31/2015)
  • 200 A 35 kV class three-phase integral loadbreak bushing catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 200 A, 35 kV three-phase rated integral Loadbreak bushing which combines the advantages of a reliable one-piece design with the operating features required for underground distribution switching.
    (PDF 172 KB , 05/28/2021)
  • 200 A, 35 kV class tri-clamp bushing well with fixed or removable stud catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series 200 A, 35 kV class tri-clamp bushing well which is designed for the termination of primary winding leads at the front plate of fluid-filled apparatus rated at either 8.3/14.4 kV, 15.2/26.3 kV, 16.2/28.0 kV (Canadian Applications) or 21.1/35 kV.
    (PDF 733 KB , 07/31/2015)
  • 300 A externally operated series multiple (dual voltage) switches catalog
    This catalog describes dimensions, ratings and ordering information for Eaton's Cooper Power series 300 A externally operated series multiple switches which change connection of de-energized transformer windings between series and parallel to provide different common transformer voltage ratios.
    (PDF 435 KB , 06/30/2025) Updated
  • 300 A externally operated tap-changer switch catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 300 A externally operated tap-changer switch which eliminates many of the hazards associated with manual internal tap changing of distribution transformers because line crews need not be exposed to high voltage conductors and hot transformer fluids; these switches also eliminate the need to dismount pole-type transformers for voltage adjustment and prevent exposure of the transformer tank interiors to contamination.
    (PDF 305 KB , 06/30/2025) Updated
  • 50 A externally operated series multiple (dual voltage) switches catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 50 A externally operated single-phase under-oil series multiple switches used either in series for a higher winding ratio or in parallel for a lower winding ratio.
    (PDF 306 KB , 06/27/2025) Updated
  • 600 A 15 and 25 kV class deadbreak apparatus bushing catalog
    This catalog provides ratings, ordering information and dimensions for Eaton’s Cooper Power series 600 A 15 and 25 kV Class deadbreak apparatus epoxy bushings designed for sidewall mounting in transformers, switches and other apparatus filled with transformer oil or Envirotemp FR3 fluid or an approved equivalent; separable connector systems, such as BOL-T and T-OP II deadbreak connectors as well as other similar systems on the market, can be used with these bushings.
    (PDF 143 KB , 02/24/2020)
  • 600 A 15 and 25 kV class deadbreak PUSH-OP apparatus bushing catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series 600 A 15 and 25 kV Class deadbreak PUSH-OP apparatus epoxy bushings which are designed for sidewall mounting in transformers, switches and other apparatus filled with transformer oil, Envirotemp FR3 fluid or an approved equivalent; all 600 A PUSH-OP type connectors will operate with this bushing.
    (PDF 600 KB , 07/31/2020)
  • 600 A 25 kV class PUSH-OP insulated adapter cap catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series 600 A, 25 kV Class PUSH-OP adapter cap which is a factory assembled loadbreak reducing tap plug and bushing extender with a stainless steel shroud and tin-plated copper probe.
    (PDF 266 KB , 09/30/2016)
  • 600 A 35 kV class deadbreak apparatus bushing
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A 35 kV class deadbreak apparatus bushings which are designed for sidewall mounting in transformers, switches and other apparatus filled with transformer oil, Envirotemp FR3 fluid or an approved equivalent
    (PDF 285 KB , 03/31/2025)
  • 600 A 35 kV class deadbreak PUSH-OP apparatus bushing catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series 600 A 35 kV class deadbreak PUSH-OP apparatus epoxy bushings which are designed for sidewall mounting in transformers, switches and other apparatus filled with transformer oil, Envirotemp FR3 fluid or an approved equivalent; all 600 A 35 kV PUSH-OP type connectors will operate with this bushing.
    (PDF 276 KB , 02/28/2016)
  • 600 A – 1400 A 1.2 kV class plastic (HTN) molded tri-clamp secondary bushings catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series secondary bushings which are designed for external mounting on distribution transformers filled with transformer oil, Envirotemp FR3 fluid or an approved equivalent and are available with either spade or stud connections.
    (PDF 258 KB , 11/24/2020)
  • ELSP current-limiting backup fuse outgoing part number catalog
    The information in this catalog pertains to Eaton’s outgoing Cooper Power series ELSP part numbers; refer to catalog section CA132013EN for the most recent ELSP part numbers and technical data.
    (PDF 616 KB , 02/28/2018)
  • Four-position sectionalizing loadbreak switches catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series four-position sectionalizing loadbreak switch which is designed for use in transformer (mineral) oil, Envirotemp FR3 fluid or approved equivalent fluid-filled pad-mounted transformers or distribution switchgear.
    (PDF 498 KB , 03/06/2025)
  • Oil-immersed current-sensing weak link cartridge fuse catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series oil-immersed current-sensing weak link cartridge fuse which is an internal, “weak link” expulsion fuse designed for use in transformer oil or approved equivalent on the high voltage or primary side of distribution transformers.
    (PDF 118 KB , 11/30/2015)
  • Oil-immersed dual-sensing weak link cartridge fuse catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series oil-immersed dual-sensing weak link cartridge fuse which is an internal, "weak link" expulsion fuse designed for use in transformer oil or approved equivalent and to be used on the high-voltage or primary side of distribution transformers.
    (PDF 127 KB , 11/30/2015)
  • Two-position sidewall (horizontal) and cover (vertical) mounted Loadbreak switches catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series compact two-position loadbreak/loadmake switch which is designed for use in transformer (mineral) oil, Envirotemp FR3 fluid or approved equivalent fluid-filled class 1 pad-mounted transformers or distribution switchgear.
    (PDF 743 KB , 08/28/2019)
  • Under-oil arrester disconnector catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series arrester disconnector which provides the transformer manufacturer or utility with a means of disconnecting and reconnecting the under-oil arrester ground for transformer testing.
    (PDF 0 B , 06/27/2025) Updated
  • VariSTAR composite light-duty under-oil (CLU) MOV arrester catalog
    This catalog describes features and ordering information for Eaton's Cooper Power series VariSTAR composite light-duty under-oil (CLU) MOV arrester which is designed for either horizontal or vertical mounting inside the distribution transformer tank to eliminate the difficulties associated with externally mounted arresters.
    (PDF 377 KB , 08/31/2015)
X
Download Close

Not finding the literature you need?

Visit this page for information on earlier models.

Additional literature

New to cable accessories?

Learn about the fundamentals of medium-voltage cable accessories

Learn more

Related products

Eaton is an intelligent power management company dedicated to improving the quality of life and protecting the environment for people everywhere. We are guided by our commitment to do business right, to operate sustainably and to help our customers manage power ─ today and well into the future. By capitalizing on the global growth trends of electrification and digitalization, we’re accelerating the planet’s transition to renewable energy and helping to solve the world’s most urgent power management challenges.
Company
Quick links
© 2025 Eaton. All Rights Reserved.