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Description


VR32I switch disconnectors are intended for non-automated commutation of AC circuits with rated voltage up to 690V (50Hz).

They are used for installation in low-voltage complete devices such as lead-in distribution units of residential, public and industrial buildings, distribution boards and panels, control panels and boxes, etc.

VR32I switch disconnectors meet the requirements IEC 60947-3.

Recommendations

  • As a basis for building a low-voltage switch unit using VR32I switch disconnectors, IEK Company recommends their own-produced SCHMP metal cases, SCHO panels, lead-in distribution cases, KSRM and SHRS covers.
  • When assembling a low-voltage switch unit, it is recommended to use PPNI fuse links or VA88 molded case circuit breakers.

Range


  Name Number of poles Conventional free air thermal current Ith, Transport package amount, pcs Product ID
VR32I 100A 3 100 24 SRK01 111 100
VR32I 250A 3 250 18 SRK21 111 250
VR32I 400A 3 400 12 SRK31 111 400

Advantages


  • Convenient mounting and exploitation.
  • Low power losses at the expense of using contemporary materials.
  • Double visible circuit breaking, dismountable handle, color indication of “on” position provide for boosting the safety of electric installations servicing by technical personnel.
  • Possibility to connect copper and aluminum current conducting wires as well as cooper and aluminum buses.
  • Warranty 3 years.

Design Features


Double visible circuit breaking ensures the safety of electric installations servicing by technical personnel. Additional color indication of “on” position signals on the necessary protective precautions.
VR32I body is made of self-extinguishing mechanically strong plastic. Dismountable handle provides for boosting safety at the expense of electric unit exploitation.
Terminal leads made of high-quality electric copper with applied protective coating allow connecting copper and aluminum current conducting wires supplied with cable lugs as well as copper and aluminum buses. Marking is applied on the body using a die stamping method ensuring long-term preserving of information about the device.
Arch extinguishing chambers, wide contact clearance, double circuit breaking ensure efficient electric arch extinguishing at loads commutations that contributes to lowering the contacts’ wear resistance.    

Technical Features


Feature VR32I 100A VR32I 250A VR32I 400A
Conventional free air thermal current Ith, 100 250 400
Conventional thermal sheath current Ithe, 80 200 315
Rated operation current Ie at Ue=400V depending on the application category, A -20V 100 250 400
-21V
-22V 80 125 200
-23V 50 80
Rated operation current Ie at Ue=690V depending on the application category, A -21V 100 250 400
-22V 80 125 200
-23V 20 40
Thermal losses, W/pole 3 15 35
Rated insulation voltage Ui, V 690
Rated impulse withstand voltage Uimp, kV 8,0
Protection degree according to GOST 14254 IP00, IP32 from the conductor side when installing into the low-voltage switch unit
Ambient temperature range, C from -25C to +40C
Weight, kg 1,47 2,58 3,57
Electrical wear resistance at Ue=400V depending on the application category, power cycles -20V 4000 2500 2500
-21V 2000 2000
-22V 3200 1600 1600
-23V 4000 3200
Electrical wear resistance at Ue=660V depending on the application category, power cycles -21V 300 200 200
-22V
-23V 300
Mechanical wear resistance, power cycles 25000 16000
Conductor sizes suitable for connection, mm2 10...50 70...150 120...3×120
Service life from the moment of putting into operation, not less than, years 10

Overall Dimensions


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+7 (495) 542 22 22
 
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