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Medium-voltage cable accessories

Deadbreak connectors

Eaton’s Cooper Power series deadbreak connector systems meet the need for a deadfront underground installation in main and lateral feeders. They provide a completely shielded, deadfront, fully submersible cable connection for medium-voltage apparatus, including transformers, switchgear and large motors. 

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200 kV BIL deadbreak system product aid Stepless shear bolt connectors product aid
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Fully interchangeable
Complete product portfolio
Hotstick-operable
Ease of use
Advanced connection design
Consistent installation

Core features

  • Can be used to make splices, junctions, taps and deadends for main underground, distribution feeders
  • Meet the electrical, mechanical and dimensional requirements of IEEE Std 386 or equivalent standard
  • Designed to be fully interchangeable
  • 900 amp rating available for use with copper bushing or junction
  • Designed for use on XLPE, EPR or other solid dielectric insulated underground electrical cables
  • Molded using high-quality, peroxide-cured EPDM insulation for reliable field performance

Watch this short demonstration of Eaton’s deadbreak connectors.

Establish loops, taps, splices and facilitate apparatus changeouts with 200 A and 600 A, 15 and 25 kV class multi-point variable junctions

Eaton’s Cooper Power series junction bars are designed for vault or apparatus applications and can be used for looping, tapping and sectionalizing. They are fully shielded, submersible, and are designed and manufactured in accordance with IEEE Std 386-2016 standard. These junctions provide 2 to 6, 15 or 25 kV mixed inline 200 A loadbreak, 600 A deadbreak or 600 A loadbreak Cleer interfaces bussed together and encapsulated in a precision-molded, peroxide-cured EPDM insulated rubber body. Junction bars come standard with a stainless steel mounting bracket.
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Designed for hotstick operation

Eaton's Cooper Power series T-OP II deadbreak connector systems have a 200 A loadbreak tap. They are single-person hotstick-operable, making them ideal for terminations that may require moving or sectionalizing to achieve a visible open or visible ground.

Easier installation with stepless shear bolt connector

The stepless shear bolt connector, used in 600 A and 900 A deadbreak terminations, ensures more installation consistency than conventional shear bolt connectors and eliminates the need for compression tools and dies.

Protection against high-voltage events

Eaton's Cooper Power series deadbreak connectors offer the industry's first complete 200 kV BIL deadbreak system that can reduce the damage done by high-voltage transient events.
Specifications
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Ratings

600 A deadbreak connector ratings in accordance with IEEE Std. 386 standard
Voltage ratings
 15 kV
 25 kV
 35 kV
Standard voltage class
 25
 25
 35
Maximum rating phase-to-ground
 15.2
 15.2
 21.1
AC 60 Hz 1-minute eithstand
 40
 40
 50
DC 15-minute eithstand
 78
 78
 103
BIL and full wave crest
 125
 125
 150
Minimum corona voltage level
 19
 19
 26
Current ratings
 15 k
 25 kV
 35 kV
600 A interface**
Continuous
 600 A rms
 600 A rms
 600 A rms
24-hour overload
 1,000 A rms
 1,000 A rms
 1,000 A rms
Short time
 25,000 A rms sym. for 0.17 s
 25,000 A rms sym. for 0.17 s
 25,000 A rms sym. for 0.17 s
10,000 A rms sym. for 3.0 s
 10,000 A rms sym. for 3.0 s
 10,000 A rms sym. for 3.0 s
200 A Interface On Loadbreak Reducing Tap Plug (LRTP)* 
Continuous
 200 A rms
 200 A rms
 200 A rms
Switching 
 10 make/break operations at 200 A rms at 14.4 kV
 10 make/break operations at 200 A rms at 26.3 kV
 10 make/break operations at 200 A rms at 36.6 kV
Fault closure
 10,000 A rms sym. at 14.4 kV for 0.17s after 10 switching operations
 10,000 A rms sym. at 26.3 kV for 0.17s after 10 switching operations
 10,000 A rms sym. at 36.6 kV for 0.17s after 10 switching operations
Short time 
 10,000 A rms sym. for 0.17 s
 10,000 A rms sym. for 0.17 s
 10,000 A rms sym. for 0.17 s
3,500 A rms sym. for 3.0s
 3,500 A rms sym. for 3.0s
 3,500 A rms sym. for 3.0s
*System design and protection must recognize the ratings of 200 A interface
**Optional 900 A rating is available
Download Links
  • 200 kV BIL deadbreak system product aid
    This brochure describes how Eaton offers the industry’s first complete 200 kV BIL deadbreak connector system including tee bodies, insulating plugs, junctions and caps-reducing tap plugs and transformer bushings; combining the 200 kV BIL deadbreak system with Eaton’s Cooper Power series 200 kV nameplate rated transformer means no longer sacrificing system protection due to limited component ratings.
    (PDF 444 KB , 09/30/2017)
  • 36 (42) kV bolted tee connectors for IEC rated wind farms product aid
    This brochure describes Eaton’s Cooper Power series 1250 A, 36 (42) kV class screened bolted tee connector which connects single- and three-core polymeric cable to switchgear, transformers, motors and other equipment with a premolded separable connector that can be used for both indoor and outdoor installations.
    (PDF 214 KB , 11/30/2016)
  • Cable accessory training - cable prep training
    This document describes cable training options.
    (PDF 118 KB , 05/03/2024)
  • Cleer grounding elbow product aid
    This brochure describes why Eaton's Cooper Power series 600 A 35 kV Cleer grounding elbows increase safety and decrease maintenance time
    (PDF 256 KB , 11/11/2019)
  • 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)
  • Deadbreak system stacking dimensions
    This document assists in calculation of deadbreak system stacking dimensions.
    (PDF 1 MB , 08/22/2024)
  • Optimal overcurrent transformer protection product aid
    This brochure discuss how only Eaton’s Cooper Power series fuses can provide a comprehensive, cost-effective, and easy-to-restore transformer overcurrent protection package consisting of transformer low-current protection devices and current-limiting fuses through 38 kV-plus the tool to easily coordinate the devices.
    (PDF 1 MB , 03/31/2015)
  • SA series cold shrinkable metallic shield adapter kit product aid
    This brochure describes how Eaton’s Cooper Power series SA series cold shrinkable metallic shield adapter kits make it simple and easy to seal and ground metallic shielded cable when terminating 200 A loadbreak and deadbreak elbows, 600 A deadbreak T-connectors and splices.
    (PDF 102 KB , 11/30/2016)
  • Stepless shear bolt connectors product aid
    This brochure describes how using Eaton’s Cooper Power series shear bolt connectors can save time and increase reliability in the field by reducing error potential during installation.
    (PDF 379 KB , 02/03/2020)
  • 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)
  • 1250 A deadbreak tee connector (M16) - interface D catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 1250 A deadbreak tee connector (M16) - interface D which are for connection of polymeric cable to transformers, switchgear, motors and other equipment with a premolded separable connector.
    (PDF 169 KB , 04/01/2015)
  • 200 A 15 and 25 kV class deadbreak elbow connector catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series deadbreak elbow connector which is a fully-shielded and insulated plug-in termination for connecting underground cable to transformers, switching cabinets and junctions equipped with deadbreak bushings.
    (PDF 217 KB , 05/31/2015)
  • 200 A 15 and 25 kV class deadbreak straight connector catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series deadbreak straight connector which is a fully-shielded and insulated plug-in termination for connecting underground cable to transformers, switching cabinets and junctions equipped with deadbreak bushings.
    (PDF 210 KB , 05/31/2015)
  • 200 A 25 and 28 kV class loadbreak bushing insert catalog
    This catalog provides ratings and ordering information for Eaton's Cooper Power series 200 A 25 and 28 kV class loadbreak bushing insert.
    (PDF 246 KB , 02/19/2025)
  • 200 A 25 and 28 kV class rotatable feedthru insert catalog
    This catalog provides ratings and ordering information for Eaton's Cooper Power series 200 A 25 and 28 kV class rotatable feedthru insert.
    (PDF 307 KB , 04/09/2025)
  • 200 A and 600 A, 15 and 25 kV Class multi-point variable junctions catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 200 A and 600 A, 15 and 25 kV Class multi-point variable junctions.
    (PDF 670 KB , 01/31/2023)
  • 250 A 24 kV class deadbreak elbow connector - interface A catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 250 A 24 kV class deadbreak elbow connector - interface A which are for connection of polymeric cable to transformers, switchgear, motors and other equipment with a premolded separable connector.
    (PDF 209 KB , 01/31/2016)
  • 250 A 24 kV class deadbreak straight connector - interface A catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 250 A 24 kV class deadbreak straight connector - interface A which are for connection of polymeric cable to transformers, switchgear, motors and other equipment with a premolded separable connector.
    (PDF 153 KB , 01/01/2016)
  • 250 A, 24 kV class deadbreak junctions - interface A catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 250 A, 24 kV class deadbreak junctions - interface A – which are for connection of three 250 A pre-molded connectors to form a separable cable joint.
    (PDF 253 KB , 02/01/2024)
  • 600 A 15 and 25 kV class deadbreak accessories, tools and replacement parts catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series 600 A, 15 and 25 kV Class deadbreak accessories which connect and assemble 600 A products.
    (PDF 347 KB , 08/31/2023)
  • 600 A 15 and 25 kV class PUSH-OP insulated standoff bushing catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A 15 and 25 kV class PUSH-OP insulated standoff bushings which are used in switchgear, transformers and other apparatus to isolate and sectionalize an energized cable.
    (PDF 155 KB , 04/30/2015)
  • 600 A 15 kV class BT-TAP deadbreak connector catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A, 15 kV Class BT-TAP deadbreak connector which terminates high-voltage underground cable to transformers, switches, switchgear and other apparatus.
    (PDF 308 KB , 11/29/2020)
  • 600 A 15 kV class bushing adapter for T-OP II connector system (including LRTP and bushing extender) catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A, 15 kV class bushing adapter for T-OP II connector system which converts a 600 A deadbreak interface to a standard 200 A loadbreak interface, allowing for safe testing and grounding.
    (PDF 248 KB , 04/30/2015)
  • 600 A 15 kV class PUSH-OP deadbreak connector catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A, 15 kV Class PUSH-OP deadbreak connector which is a complete threadless deadbreak, hotstick-operable connection system for terminating underground cables to transformers, switches, switchgear and other apparatus.
    (PDF 224 KB , 04/30/2015)
  • 600 A 15 kV class PUSH-OP insulated adapter cap catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series 600 A, 15 kV class PUSH-OP adapter cap which is a factory assembled LRTP and T-body with a stainless steel shroud and tin-plated copper probe.
    (PDF 158 KB , 04/30/2015)
  • 600 A 15 kV class T-OP II deadbreak connector catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A, 15 kV Class T-OP II deadbreak connector which terminates high-voltage underground cable to transformers, switches, switchgear and other apparatus.
    (PDF 456 KB , 03/30/2023)
  • 600 A 15, 25 and 35 kV class Cleer grounding elbow catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A 15, 25 and 35 kV Cleer loadbreak connector system with Cleer grounding elbow which provides a visible ground.
    (PDF 853 KB , 10/31/2019)
  • 600 A 15/25 kV class BOL-T deadbreak connector catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600/900 A, 15/25 kV Class BOL-T deadbreak connector which terminates high-voltage underground cable on deadfront apparatus such as transformers, switches and switchgear.
    (PDF 348 KB , 08/31/2023)
  • 600 A 15/25 kV class deadbreak junction catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series 600 A, 15/25 kV class deadbreak junction which provides two, three or four deadbreak interfaces bused together and encapsulated in a precision-molded, peroxide-cured EPDM insulated rubber body with a EPDM peroxide-cured semi-conductive outer shield.
    (PDF 157 KB , 11/30/2015)
  • 600 A 15/25 kV class insulated protective cap catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A, 15/25 kV class insulated protective cap which provides insulated, fully shielded submersible protection for energized 15 and 25 kV class deadbreak interfaces.
    (PDF 184 KB , 05/31/2015)
  • 600 A 15/25 kV class separable splices catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series 600 A, 15/25 kV Class deadbreak separable splices which are used to splice two, three or four cables or to deadend a single cable.
    (PDF 380 KB , 11/30/2020)
  • 600 A 15/25 kV class standoff bushings catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series 600 A, 15/25 kV insulated standoff bushing which provides a single deadbreak interface made of high quality insulating epoxy material and is used in pad-mount cabinets, underground vaults and other apparatus to isolate and sectionalize an energized cable.
    (PDF 218 KB , 07/31/2020)
  • 600 A 25 kV class BT-TAP deadbreak connector catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A, 25 kV Class BT-TAP deadbreak connector which terminates high-voltage underground cable to transformers, switches, switchgear and other apparatus.
    (PDF 431 KB , 11/29/2020)
  • 600 A 25 kV class bushing adapter for T-OP II connector system (including LRTP and bushing extender) catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A, 25 kV class bushing adapter for T-OP II connector system which converts a 600 A deadbreak interface to a standard 200 A loadbreak interface, allowing for safe testing and grounding.
    (PDF 276 KB , 04/30/2015)
  • 600 A 25 kV Class PUSH-OP Deadbreak Connector
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A, 25 kV Class PUSH‑OP deadbreak connector which is a complete threadless deadbreak, hotstick-operable connection system for terminating underground cables to transformers, switches, switchgear and other apparatus.
    (PDF 176 KB , 04/30/2015)
  • 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 25 kV class T-OP II deadbreak connector catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A, 25 kV Class T-OP II deadbreak connector which terminates high voltage underground cable to transformers, switches, switchgear and other apparatus.
    (PDF 537 KB , 07/13/2022)
  • 600 A 35 kV class BOL-T deadbreak connector catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A, 35 kV Class BOL-T deadbreak connectors which terminate high-voltage underground cables to deadfront apparatus such as transformers, switches and switchgear.
    (PDF 331 KB , 05/30/2023)
  • 600 A 35 kV class BT-TAP deadbreak connector catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A 35 kV Class BT-TAP deadbreak connector which terminates high-voltage underground cable to transformers, switches, switchgear and other apparatus.
    (PDF 748 KB , 05/29/2020)
  • 600 A 35 kV class bushing adapter for T-OP II connector system (combination of LRTP and bushing extender) catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series 600 A, 35 kV Class bushing adapter wjhich is used to convert a standard 600 A deadbreak interface to a standard 200 A loadbreak interface.
    (PDF 207 KB , 05/31/2015)
  • 600 A 35 kV class deadbreak accessories, tools and replacement parts catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series 600 A, 35 kV Class deadbreak accessories which connect and assemble 600 A products.
    (PDF 310 KB , 07/13/2022)
  • 600 A 35 kV class deadbreak junction catalog
    This catalog describes features and ordering information for Eaton’s Cooper Power series 600 A, 35 kV Class deadbreak junction which provides two, three or four deadbreak interfaces bused together and encapsulated in a precision molded peroxide-cured EPDM insulated rubber body with a semiconductive outer shield.
    (PDF 260 KB , 05/31/2015)
  • 600 A 35 kV class insulated protective cap catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A, 35 kV class insulated protective cap which provides insulated, fully shielded submersible protection for energized 35 kV class deadbreak interfaces.
    (PDF 232 KB , 05/31/2015)
  • 600 A 35 kV class PUSH-OP bushing adapter catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series 600 A, 35 kV Class PUSH-OP bushing adapter which is a factory assembled LRTP and extender with a stainless steel shroud and tin-plated copper probe.
    (PDF 166 KB , 05/31/2015)
  • 600 A 35 kV class PUSH-OP deadbreak connector catalog
    This catalog provides features and ordering information for the complete threadless deadbreak, clampstick operable connection system Eaton offers with its Cooper Power series 600 A, 35 kV class PUSH-OP deadbreak connector for terminating underground cables to transformers, switches, switchgear and other apparatus.
    (PDF 181 KB , 10/31/2015)
  • 600 A 35 kV class PUSH-OP insulated standoff bushing catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series 600 A 35 kV class PUSH-OP insulated standoff bushing which is used in switchgear, transformers and other apparatus to isolate and sectionalize an energized cable.
    (PDF 181 KB , 05/31/2015)
  • 600 A 35 kV class separable splices catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A, 35 kV Class deadbreak separable splices which are used to splice two, three or four cables or to deadend a single cable.
    (PDF 383 KB , 01/01/2024)
  • 600 A 35 kV class standoff bushings catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 600 A, 35 kV insulated standoff bushing which provides a single deadbreak interface made of high quality insulating epoxy material and is used in pad-mounted cabinets, underground vaults and other apparatus to isolate and sectionalize an energized cable.
    (PDF 171 KB , 05/31/2015)
  • 600 A 35 kV class T-OP II deadbreak connector catalog
    This catalog provides features and ordering information for Eaton's Cooper Power series 600 A 35 kV Class T-OP II deadbreak connector which is used to terminate high voltage underground cable to transformers, switches, switchgear and other apparatus.
    (PDF 490 KB , 07/13/2022)
  • 630 A connecting plug - interface C catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 630 A connecting plug - interface C which connects two or more 630 A bolted tee connectors for use as a separable cable joint or for connection of multiple cables to an apparatus bushing.
    (PDF 89 KB , 04/30/2015)
  • 630 A deadbreak bolted tee connector - interface C - DT400 and DT436 applications catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 630 A deadbreak bolted tee connector - interface C – which are for connection of extruded polymeric cable to transformers, switchgear, motors and other equipment with a premolded separable connector.
    (PDF 295 KB , 05/31/2015)
  • 630 A deadbreak bolted tee connector - interface C - DTS624 and DTS 636 applications catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 630 A deadbreak bolted tee connector - interface C – which are for connection of extruded polymeric cable to transformers, switchgear, motors and other equipment with a premolded separable connector.
    (PDF 263 KB , 07/31/2016)
  • 630 A deadbreak companion tee connector for DTS624/636 catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 630 A deadbreak companion tee connector for DTS624/636 which are for connection of extruded polymeric cable to transformers, switchgear, motors and other equipment with a premolded separable connector.
    (PDF 340 KB , 07/31/2016)
  • 800 A deadbreak tee connector (M16) - interface D catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 800 A deadbreak tee connector (M16) - interface D which are for connection of polymeric cable to transformers, switchgear, motors and other equipment with a premolded separable connector.
    (PDF 167 KB , 04/30/2015)
  • CA650024EN 250 A Connector Accessories - Interface A
    This catalog provides features and ordering information for Eaton’s Cooper Power series 250 A connector accessories - interface A.
    (PDF 162 KB , 03/17/2023)
  • DTB1242 bolted companion tee connector catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series DTB1242 bolted companion tee connector which are for connection of polymeric cable to transformers, switchgear, motors and other equipment with a premolded separable connector.
    (PDF 273 KB , 08/31/2016)
  • DTS1242 bolted tee connector - interface C catalog
    This catalog provides features and ordering information for Eaton’s Cooper Power series 250 DTS1242 bolted tee connector - interface C which are for connection of polymeric cable to transformers, switchgear, motors and other equipment with a premolded separable connector.
    (PDF 232 KB , 08/31/2016)
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