ELR2 Series BXPV-ELR2 DC Isolator Switch


DC isolation switches, also known as DC disconnect switches or DC safety switches, are devices used to disconnect a DC power source from a load or electrical system. They are designed to provide a means of cutting off the flow of DC current for maintenance, repair, or safety purposes.
DC isolation switches come in various forms, including manual and automatic switches, as well as single-pole and multi-pole configurations. They are used in a wide range of applications, including solar power systems, battery banks, and electric vehicles.
The similar names are Solar Isolation Switch, Photovoltaic Isolation Switch, PV Safety Disconnect Switch,DC PV Isolator etc.


ELR2 Series DC Isolator Switch in plastic enclosure is applied to 1~20KW  residential  or  commercial photovoltaic system, placed between photovoltage modules and inverters. Arcing time is less than 8ms, that keeps solar system more safe. To ensure its stability

and long service life, our products are made by components with optimum quality. Max voltage is up to 1200V DC. It holds a safe lead among similar products.

  • IP66 rated enclosure, UV Resitant
  • 4 x M20 knock holes
  • The handle can be padlocked in the “OFF” position
  • MC4 plugs can be selected for convenient connection and space saving
  • 2 Poles, 4Poles are viable(Single I Double String)
  • Standard: IEC60947-3, AS60947.3
  • DC-PV2, DC-PV1, DC-21B
  • 16A, 25A, 32A, DC1200V


Type Standard lEC/EN 60947-3, AS60947.3









Function Isolator, Control
Poles P 4
Utilization category DC-PV2/DC-PV1/DC-21B
Rated frequency DC
Rated operational voltage(Ue) V 300, 600, 800, 1000, 1200
Rated operational voltage(Ie) see the next page
Rated insulation voltage(Ui) V 1200
Conventional free air thermal current(Ithe) //
Conventional enclosed thermal current(Ithe) same as Ie
Rated short-time withstand current(Icw) 1kA, 1s
Rated impulsed withstand voltage(Uimp) kV 8
Overvoltage category t II
Suitability for isolation Yes
Polarity NO polarity,“+”and“-”polarities could be interchanged


Electrical life t 2000
Mechanical life t 18000


Ingress protection IP66
Storge temperature C -40~+85
Mounting Vertically or horizontally
Pollution degree 3

Switching Configurations

4 MB

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