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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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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
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