Description
Underwater Time Delay Fuses UTDF-3M and UTDF-2B are designed to initiate various types of underwater 
charges.
The fuse UTDF-2B contains 50 g RDX and is intended for a direct detonation of underwater charges. It has a shaped charge able to penetrate 20mm steel in order to detonate underwater explosives inside unexploded ordnance (mines, torpedoes, bombs, artillery shells and others). An adapter consisting of magnets ensures the stable fixation of the fuse to the target.
The fuse UTDF-3M initiates a “Nonel” shock tube detonator through Primer No 8.
Each fuse is provided with a soluble transportation safety lock in the fire circuit, which ensures safety during assembly and programming.
The activation of the fuses is controlled by a microprocessor.
TECHNICAL CHARACTERISTICS
| Overall dimensions (D x H), mm | Ø 95 x 135 |
| Weight, kg | 0,68 ± 0,05 |
| Power supply (lithium batteries) | 3.6 V |
| Safe time of the water-soluble tablet | No less than 10 minutes |
| Timer, safe time (including safe time of water-soluble device) | No less than 30 minutes |
| Min/max duration armed state | 30 minutes/100 hrs |
| Minimum step of setting the armed state, minutes | 1 |
| Operation temperature in air/water, °C | -10 to 50/ -2 to 40 |
| Storage term in storehouse temperatures:
– from -20° to 60°C – from 15° to 25°C |
2 years 10 years |
