Fameproof protection box OSZ -25 (500V, 32A)

Flameproof protection box is designed for use in underground coal mines in excavations of methane explosion hazard class a, b, or c, or coal dust explosion hazard class A or B and zones 1 and/or 2 of explosion hazard group IIB. Flameproof protection box type OSZ-25 with fuses is designed for use in electric systems, with a rated voltage up to 500 V. As a standard, boxes OSZ-25 are equipped with entry units for cable outer diameters 10÷20mm. It is possible to enter cables of different outer diameters, depending on entry units used, i.e. Ø6÷10mm – W10M; Ø10÷20mm – W20M; Ø20÷30mm – W30M.