Battery-powered locomotives are designed for horizontal rail transport especially in mines and closed spaces. They are also intended for use in potentially explosive environment with coal dust and methane in volume up to 1.5 %. They are certified according to European safety standards and ATEX standards. They can work on slopes of rail lines up to 35‰ , with track gauge from 500 to 1060 mm, at ambient temperatures from -20°C to +40oC.
    
Locomotives are with single cabin and two cabins weighing from 3.5 t to 18 t. Cabins are removable, to provide easy transportation into underground tunnels. Three-phase asynchronous electric motors with external cooling, and with power from 10 kW to 2x45 kW are practically maintenance-free. Speed and torque of the motors are controlled by a frequency inverter with controller unit. The chassis is of dual-axle type and travel wheels are secured with interchangeable rims. Electric batteries are of the container type and adapted for easy maintenance and replacement. Locomotive braking is performed by two independent systems on both axles: electrodynamic and mechanical.

The security system provides automatic stop of the locomotive engine in a case of failure mode and when exceeding the temperature and pressure limit values. The driver is informed about all conditions by means of a display on the dashboard, and this information is also saved into control system memory.

Further technical specifications can be found here.