

BF1 32V fuses use SLO-BLO® technology to provide predictable time-delayed protection to high-current wiring harnesses. The bolt-down automotive fuses feature transparent covers to simplify the process of checking for blown fuses. Be sure to use the 150 A and 200 A fuses only for short circuit protection.
- Time-delayed
- Available with ampere ratings of 30 A to 200 A
- Interrupting ratings of 1 kA at 32 V dc for 30 A fuse; 2 kA at 32 V dc for 40 A to 150 A fuses; and 1.5 kA at 32 V dc for 200 A fuse
- Tin-plated copper alloy terminals
- Operate at up to 125 ℃
- Color-coded PET-GF33 housing with UL 94 flammability rating of V-0 and transparent PES cover with UL flammability rating of V-0
- M5 (4.5 Nm ±1 Nm) or M6 (6 Nm ±1 Nm) mounting holes
- Refer to ISO 8820-5:2015
- Recognized in Canada and United States as UL Special Purpose Fuses
- Certified lead-free and RoHS compliant
- Color coding indicates ampere rating
- High-contrast ampere rating stamps aid identification
- Transparent covers make it easier to see when fuses blow
- Available with one, two, or no mounting holes
BF1 Parts
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Part Number | Actions | Current Rating (A) | Voltage Rating (V) | Typ. I2t (A2s) | Typ. Cold Resistance (mΩ) | Typ. Voltage Drop (mV) | Interrupting Rating | Mounting Technology | Mounting Torque (Nm) | UL94 Flammability Rate | UL Recognized | Holes Qty | Hole(s) Dimension | Terminal Plating | Max Recommended Environmental Temperature (°C) | Max temperature allowed by the plating (°C) | Reference ISO standard |
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Part Number | Actions | Current Rating (A) | Voltage Rating (V) | Typ. I2t (A2s) | Typ. Cold Resistance (mΩ) | Typ. Voltage Drop (mV) | Interrupting Rating
| Mounting Technology | Mounting Torque (Nm) | UL94 Flammability Rate | UL Recognized | Holes Qty | Hole(s) Dimension | Terminal Plating | Max Recommended Environmental Temperature (°C) | Max temperature allowed by the plating (°C) | Reference ISO standard | |
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BF1 Applications
- Cars and SUVs
- Trucks
- Buses
- Offroad vehicles
- Watercraft as approved by Littelfuse