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Use the Blue Sea Systems Circuit Wizard to select the correct wire size, circuit breaker or fuse type and amperage, and fuse holder. -
The Circuit Wizard app is available for Android™ devices & iOS devices.
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Fuses Class T Fuses (A3T)
Class T Fuse - 400 Amp
PN 5121- Extremely fast short-circuit response
- 20,000 Ampere Interrupt Capacity (AIC)
Dimensioned Drawing
Full-scale Fuse Comparison (Scaled 1:1)
5117 
5118 
5119 
5120 
5121 | Specifications | |
|---|---|
| Amperage | 400A |
| Maximum Voltage | 160V DC |
Interrupt Capacity  | 20000A @ 160V DC |
| Weight | 0.30lb (0.14 kg) |
| Works With | ||
|---|---|---|
 | All Class T Fuse Blocks | |
| Meets the following Regulatory Standards |
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Blow Delay Curve |
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