The JB 50 is a 10-terminal junction box in metal with tamper switch for connection of seismic detectors, where increased safety and durability is required. The box has 10 screw terminals with wire protection, 2 of which are specified for the tamper switch. The box has an input for the stainless steel hose MC T2, T4 or T7, which locks with grooves inside the box for safe installation and operation. The box is easy to mount with screws.