Susol LV MDB

Susol Low Voltage Main Distribution Board

Susol LV MDB switchgear is designed and produced to construct high quality power systems. With high performance and high quality, it may be applied to various industrial fields.
Susol LV MDB


Stability and Reliability
  • Complied with IEC 61439-1&2 standard
  • Obtained ASTA certificate of verification tests
Safety and Convenience
  • Internal arc-tested design(85kA/0.5s, according to IEC 61641)
  • Form 4b structure(Prevention fault spread by metal and insulated partitions)
  • Degrees of protection
    • IP43(outside), IP2X(inside)
    • Mechanical impact: IK07
  • Heat flow structure
    • Sufficient ventilation structure both inside and out
    • Specially designed arc release cover for heat dissipation
Compact Size and Flexible Structure
  • Main busbars are located in the middle section of the MDB
    • Easy to place two ACBs on the panel
    • Panel size reduced compared to that of others
  • Modular structure, excellent assemblability
  • LS ELECTRIC low voltage devices are complied with all applicable standards
    • ACB: Fully lined-up up to 6300A and 150kA
    • MCCB: Fully lined-up up to 1600A and 150kA@415Vac


Rating Unit ACB Panel MCCB Panel
Rated operating voltage V 690 440
Rated frequency Hz 50 / 60 50 / 60
(Rated current)
Main A 2000, 2500, 3200, 4000, 5000
Vertical A 1800, 2000, 2500, 3200, 4000, 5000
Rated short time withstand current kA/s Up to 100kA/1s, 65kA/3s
Rated insulated voltage V 1000 750
Rated impulse withstand voltage kV 12 8
Form of internal separation   Form 4b
Degree of protection   Up to IP43
Standard   IEC 61439-1 & 2