SCHURTER APO pyro fuse for active safety in high-voltage systems.
High safety and reliability, mechanical vibration and shock resistance. Suitable for electric vehicles (EVs), electrical systems in conventional vehicles, charging infrastructure, photovoltaics (PV) & energy storage systems (ESS), household energy, electrical storage containers, fuel cell technologies, aerospace (including eVTOL).
- Safety device triggered by ECU/BMS.
- Actively disconnect the main circuit via a trigger device.
- To interrupt the battery circuit in unusual conditions such as short circuits or collisions.
Rated voltage: 1000 VDC
Rated current: 400 A
Breaking capacity: 1000 VDC/16 kA/20 µH
Internal resistance (@20 °C): ≤50 µΩ (before disconnection), ≥10 MΩ (after disconnection)
Ignition resistance: ≥1.7 Ω, ≤2.5 Ω
Trigger current: ≥1.75 A /0.5 ms or ≥1.2 A/2 ms
No trigger current: ≤0.4 A /≤ 10 s or ≤5 A /≤0.5 µs
Monitoring current: < 100 mA
Mounting: Bolt-on A
Permissible ambient temperature: -40 °C to 105 °C
Housing material: PA6
Connection material: Copper alloy, tin-plated
Unit weight: < 300 g
Storage conditions: -40 °C to 65 °C, max. 70% RH @ 40 °C, max. 80% RH @ 30 °C, max. 90% RH @ 20 °C
Vibration resistance: AK-LV 124
Current carrying capacity: 400 A continuous current @ 85 °C (with a busbar ≥120 mm²)
Action time: <2 ms
Mechanical shock: AK-LV 124
Temperature resistance: AK-LV 124
Chemical resistance: AK-LV 124
Installation: M8 screw (copper busbar), ISO 19072 AKII (release mechanism)
