| Brand | ROCKWILL | 
| Model NO. | 12kV SF6 insulated switchgear/power distribution ring main unit | 
| Rated voltage | 12kV | 
| Rated frequency | 50/60Hz | 
| Series | RMU | 
Product parameters
| Rated voltage | 12kV | 
| Rated current | 630A | 
| Rated short-time withstand current | 20kA,4s | 
| Rated peak withstand current | 50kA | 
| 1min power frequency withstand voltage | 42kV | 
| Lightning impulse withstand voltage | 75kV | 
| Protection level | IP67 | 
Environmental Conditions