Technical Parameter：
· current level：400A~6300A
· Fire resistance time：90-180min
· Wire system: Three/Four/Five wire system
· rated operational voltage：690V AC
· Short time withstand current：30~120KA

Product Features：
· Independently developed fire-resistant busbar according to the fire resistance standards in GA/T537-2007 of the Ministry of Public Security;
· Maintain continuous and stable electrical performance within a limited time in a fire environment;
· The truly fire-resistant bus duct adopts low thermal conductivity and high temperature resistant materials (Class A fire-resistant 1600 ℃) as the outer protective plate, with excellent fire resistance performance;
· Using high-purity copper bars and excellent high-temperature resistant mineral insulation materials, forming a "sandwich" dense structure with high strength and no chimney effect;
· Meet the requirements of practical application environments, ensure continuity of power supply under fire sprinkler conditions, and achieve a protection level of IP66；
· The product design has taken into account the factor of capacity reduction, and the corresponding specifications can be directly selected according to the electricity load, without the need for capacity reduction selection, which is safe and reliable.