The Underwater time delay fuses type PPZ are designed to activate various explosive charges under water.
The fuse PPZ-2B contains 50 g RDX and is intended for direct detonation of underwater charges. It can detonate а charge placed behind а steel plate up to 20mm thick. A system of magnets is used to ensure the stable fixation to the target. The fuse РРZ-ЗМ activates а Nonel detonating wire through Primer No 8.
Each fuse with а soluble transportation safety lock of the fire circuit, which ensures safety during work or programming outside or underwater.
The activation of the fuse is controlled by а microprocessor.