Compact fuses for SELV products provide fast protection against short-circuits
The UHS family of fuses from SCHURTER offers a breaking capacity of up to 2 kA, to enable galvanic isolation of low-voltage lithium-ion batteries in safety extra-low voltage (SELV) applications.
SCHURTER UHS fuses, which are available with current ratings up to 100 A, provide protection against short-circuits in products with a safety extra-low voltage (SELV) designation.
In SELV products, very high currents can flow in the event of a short-circuit. The common use of cheap, powerful lithium-ion battery cells has increased the need in PCBs to shut off high currents in a controlled manner.
The compact, surface-mount UHS family of fuses is dedicated to this function, providing a high and fast breaking capacity triggered in the event of a very high over-current. Use of the UHS fuse allows the large store of energy in lithium-ion battery cells to be galvanically isolated in a controlled manner.
| Rated Current | Rated Voltage | Package Marking | Breaking Capacity | Typical Cold Resistance |
| 50 A | 32 V | UHS 50A | Up to 1.5 kA at 16 V dc | 1.82 mΩ |
| 60 A | 32 V | UHS 60A | Up to 1.5 kA at 16 V dc | 1.5 mΩ |
| 70 A | 50 V | UHS 70A | Up to 2 kA at 16 V dc | 1.03 mΩ |
| 80 A | 50 V | UHS 80A | Up to 2 kA at 16 V dc | 0.88 mΩ |
| 90 A | 50 V | UHS 90A | Up to 2 kA at 16 V dc | 0.77 mΩ |
| 100 A | 50 V | UHS 100A | Up to 2 kA at 16 V dc | 0.71 mΩ |