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Technical parameter: 

Model:QKTB2-130/48 
rated voltage:48V(DC) 
reated current:130A 
weight:81kg 

Apply to the following work environment: 
1.Altitude:1200m; 
2.Environment temperature:-20C~+40C (monthly average temperature is:+25C); 
3.Ambient air relative humidity no more than 95%; 
4.In places where the mixture of methane and coal dust explosion; 
5.without enough insulation and metal corrosion of harmful gases and conductive dust; 
6.Corresponding to the locomotive of the longitudial acceleration less  than 30m/s2; 

Application: 
suitable for 2.5ton mining battery locomotive starting,speed regulation,stopping and retreat control usage.