FLRY cables are made with thinned PVC insulation. Thinner insulation causes that rated voltage of these cables is 60V and current-carrying capacity depends on wire cross-section.
For FLRY cables themperature range is from -40 do 105°C, therefore can used in engine compartment for wiring components distant from engine block and also underneath it. Due to these particular parameters they are often chosen for low-voltage part of electrical installation already at the vehicle design stage, being the basic type of used cable.