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Reclosers

VSA three-phase recloser

Eaton's Cooper Power series VSA group electronically controlled, three-phase, automatic circuit reclosers with vacuum interrupters, provide reliable and economic overcurrent protection to meet a variety of line and substation applications for 15 kV systems (up to 1200 A continuous/ 20,000 A interrupting current). Recloser operations are programmed on the electronic control panel with accurate, preset tripping characteristics and reclosing times, enabling close coordination with other protective devices on the system. When system requirements change, program settings are easily altered with no sacrifice of accuracy or consistency. Recloser and control accessories enable further tailoring of the protective program to achieve maximum system operating flexibility.

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Broad selection of continuous and interrupting current ratings
Meet a wide variety of requirements
Vacuum interruption
Long interrupter life
Air insulation
Longer maintenance intervals, lower maintenance costs

Core features

  • Available with ratings up to 1200 amps continuous and 20,000 amps interrupting current, for line and substation applications
  • A choice of electronic recloser controls enables the user to meet a wide variety of application requirements
  • Vacuum as the interrupting medium and air as the insulating medium improves safety and substantially reduces long term maintenance costs
  • The variety of available VSA ratings permits the user to select precisely the right recloser for the protection required
  • VSA reclosers are furnished in standard frames with corner lifting eyes; mounting equipment is available for either pole or substation installation of the recloser 

Vacuum interruption reduces maintenance costs

Vacuum interrupters provide fast, low energy arc interruption with long contact and interrupter life and low mechanical stress. With arc interruption taking place in a vacuum, contact and interrupter life are four times greater than with interruption in oil. At the same time, mechanical stress and wear on the mechanism is substantially reduced. Combined, these factors result in greatly reduced maintenance costs over the life of the recloser.

Form 6 recloser control for maximum flexibility

Eaton's Cooper Power series Form 6 recloser control provides maximum protective hardware design and simple interactive graphical interfaces for complete user customization. ProView software is used to configure control settings, record metering information and establish communication parameters. It also provides analysis tools that include fault locating, event recording and oscillography functions. In addition, the Form 6 rack mount substation interface accessory enables application of Form 6 rack mount controls and VSA reclosers to substation installations. Located in the motor operator cabinet, the substation interface accessory allows the Form 6 rack mount control to be located up to 500 ft. from a VSA recloser.
Specifications

Standards

Eaton's Cooper Power series reclosers are designed and tested in accordance with the following ANSI standards: C37.60 and C37.85 and ANSI Guide C37.61

Ratings

Maximum design voltage (kV) 
 15.5
Nominal operating voltage (kV)
 2.4-14.4
Basic Insulation Level (BIL) (kV) 
 110
60 Hertz withstand voltage (kV)
 Dry, one minute
 50
Wet, ten seconds
 45
Continuous current rating (amps)
 VAS12B
 600
VSA12, VSA16, VSA20
 800
VSA20A
 1200
Symmetric interrupting current (amps)
 VSA12, VSA12B
 12000
VSA16
 16000
VSA20, VSA20A
 20000
Cable charging current (amps) 
 2
Magnetizing current (amps)
 VSA12,VSA12B VSA16, VSA20
 28
VSA20A
 42
Three-second current, symmetric (amps)
 VSA12, VSA12B
 12000
VSA16
 16000
VSA20, VSA20A
 20000
Momentary current, asymmetric (amps)
 VSA12, VSA12B 
 20000
VSA16
 25600
VSA20, VSA20A
 32000
Capacitive switching, general purpose, isolated bank (amps)
 250

Duty cycle

Percent of maximum circuit interrupting rating
 Maximum X/R ratio
 Number of unit operations
15-20 4 88
45-55 8 112
90-100 16 32
    Total 232

Electrical specifications

Trip solenoid Operating voltage, Vdc 24  
Peak current, A 12.2  
Actuation time, cycles 1.25  
Close solenoid Operating voltage, Vdc 24  
Peak current, A 15.5  
Actuation time, cycles 1.5  
 
    Standard
 Accessory
Spring charging motor Operating voltage, Vac
 240 120
Voltage range, Vac
 160-257 90-127
Maximum current, RMS, A
 14 18
Steady state current, A 
 4.1 9
Motor running time, cycles 
 40 40
       
Sensing current transformers VSA12, VSA16
 1000:1  
VSA20VSA20A
 2000:1  
Maximum arcing time, cycles
   1.0
Interrupting time, cycles 
   2.5

Mechanical specifications

Operating temperature, °C
 Minimum
   -30
Maximum
 VAS12, VSA12B, VSA16, VSA20 +50
VSA20A +40
Closing mechanism Spring-operated
Opening mechanism
 Spring-operated
Contact gap, mm (in) 11 (7/16)
Close contact travel time, cycles 
 .5
Open contact travel time, cycles
 .5
Allowable contact erosion, mm (in)
 3 (.125)
Opening time, 24 Vdc solenoid, signal to contact part, msec
 25
Closing time, 24 Vdc solenoid, signal to contact make, msec
 32
Mechanical life Open-Close, no load, operations
 2500

 Auxiliary switch interrupting ratings

Volts
 Inductive ac (amps)
 Non-inductive ac (amps) 
 Inductive dc (amps)
 Non-inductive dc (amps)
24 –
 –
 15.0 20.0
48 –
 –
 7.5 10.0
120 60 80 –
 –
125 –
 –
 1.5 2.0
240 30 60 –
 –
250 –
 –
 0.45 0.5

Options

  • Multi-ratio bushing current-sensing transformers; factory-installed
    • Three 600:5 BCTs (accuracy class C100) on bushings 1, 3, and 5
    • Three 600:5 BCTs (accuracy class C100) on bushings 2, 4, and 6
    • Three 1200:5 BCTs (accuracy class C200) on bushings 1, 3, and 5
    • Three 1200:5 BCTs (accuracy class C200) on bushings 2, 4, and 6
  • Bushings, terminals; factory-installed
    • 17-in.-creepage bushings, VSA12B, VSA12, VSA16, VSA20
    • Stud-type terminals, 11-1/4 8-12 UNF-2A, VSA12, VSA16, VSA20
    • 4-hole flat-pad terminals, VSA12, VSA16, VSA20
    • Stud-type terminals, 11-1/4 8-12 UNF-2A, VSA12B
    • 4-hole flat-pad terminals, VSA12B
  • Service-related; factory-installed
    • 120 Vac motor operator
    • External spring-charging accessory
    • External contact-position-indicating accessory
  • Mounting equipment
    • Substation mounting frame extension
    • Electronic control mounting bracket double-size cabinet
    • Single-pole mounting hanger
  • Remote operation and indication; factory-installed
    • Three-stage auxiliary switch
  • Form 6 rack-mount substation interface; factory-installed 
    • DC station supply interface
Download Links

Looking for software, firmware and programming information?

You can access software, firmware, and associated documentation when you log into MyEaton by clicking Sign in at the top right of this Eaton.com page.

  1. Log in using your existing MyEaton.com credentials.
    • If you do not have an account, you can also register for an account by clicking Sign in at the top right of this page and then select Request access now.
  2. Once you are logged in, the software, firmware and associated documentation for this product will appear in the below list.
    • Upon sign-in, you may be directed to the MyEaton home page. You will need to navigate back to this page to see the software, firmware and documentation.

Software and firmware download page

  1. Once you are logged into MyEaton, select Tools from the MyEaton menu in the top right of the page. 
  2. You will see a link titled “Power Systems Division software and firmware downloads.” 
  3. This page is a list of all software and firmware that is available for you to download.
  • Recloser general ratings information catalog
    This catalog describes the general ratings and ordering information for Eaton’s Cooper Power series reclosers which are self-contained devices with the necessary intelligence to sense overcurrents to time and interrupt fault currents and to re-energize the line by reclosing automatically.
    (PDF 375 KB , 01/01/2016)
  • VSA three-phase vacuum electronically controlled recloser catalog
    This catalog describes ratings and ordering information for Eaton’s Cooper Power series VSA-group electronically controlled, three-phase, automatic circuit reclosers with vacuum interrupters which provide reliable and economical overcurrent protection for 15 kV distribution systems.
    (PDF 752 KB , 26/09/2019)
  • VSA three-phase vacuum electronically controlled recloser catalog
    This catalog describes ratings and ordering information for Eaton’s Cooper Power series VSA-group electronically controlled, three-phase, automatic circuit reclosers with vacuum interrupters which provide reliable and economical overcurrent protection for 15 kV distribution systems.
    (PDF 752 KB , 26/10/2023)
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