TP-900
Fuse for DC circuits with voltages up to 30 V. Designed for circuit protection from current overload and short-circuit. Fuses have an irregularly outlined fuse element. Mounting method – tin soldering.
Main parameters
| Load current | Operation time | Ambient air temperature, oC | Air pressure, mmHg |
| rated | continuous | +20, +60 | standard |
| -60 | 41 | ||
| 1.3 x rated | not more than 3 min | +20 | standard |
| 1.6 x rated | not more than 5 min | +20 | standard |
| 2 x rated | 10..50 s | +20 | standard |
| 4 x rated | not more than 5 s | +20 | standard |
The parameters are valid only in case the fuse is connected to a busbar with dimensions not less than 4x50 mm with length not less than 1.5 m.
Maximum allowed interrupting duty not less than 5000 A at 30 V DC, air pressure 41 mmHg, ambient air temperature +20oC.
Mass 115 g.
Fuses should be installed on copper busbars and mounted with nuts, bolts and washer springs. Busbars should be tinned, their surfaces – coplanar. Contact quality should be checked regularly. Bolt tightening is not allowed during operation.
