Pyrofuse SPF-2
SPF-2 DC500V 400A fuse with reliable breaking capacity. Dimension 42x42x68mm, applicable to household energy storage, electric ship and EV battery BDU protection.
BASIC PARAMETERS
Rated voltage: DC500V
Rated current: 400A
Breaking capacity: 400V/10kA/15μH,500V/5kA/20μH
Product size: 42 x 42 x 68mm
Parameter |
Specification |
|---|---|
| Rated voltage | 500 VDC |
| Current carrying capacity | 400 A at 85°C（load cable 95 mm²）300 A at 105°C（load cable 95 mm²）200 A at 125°C（load cable 95 mm²） |
| Breaking capacity | 400 V / 10 kA / 15 μH500 V / 5 kA / 20 μH |
| Breaking time | ＜2 ms |
| Triggering resistance | 1.8 Ω–2.3 Ω |
| Triggering current | 1.75 A / 0.5 ms1.2 A / 2 ms |
| No-trigger current | ≤0.4 A / 10 s≤5.0 A / ≤4 μs |
| Diagnostic current | ≤100 mA |
| Triggering pulse slope | ＜100 μs/A |
| Busbar resistance at 20°C | Before operation: ≤50 μΩAfter operation: ≥10 MΩ |
| Operating temperature | −40°C to 105°C |
| Storage temperature | −40°C to 85°C |
| Self-ignition temperature | ≥250°C |
| Vibration resistance | According to AK-LV 124 |
| Mechanical shock resistance | According to AK-LV 124 |
| Temperature cycle resistance | According to AK-LV 124 |
| Chemical load resistance | According to AK-LV 124 |
| Weight | ≤190 g |
| Terminal type | On busbar: M8 screwInstallation torque: 14 N·m |
| Sockets | ISO 19072-4 AK II |
Dimensions (mm)
The test waveform (400V/10KA/15μH)
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