Eaton Bussmann 90FE — FE Series High‑Speed British‑Standard Fuse, 90 A, 690 VAC (IEC) / 500 VDC, aR Semiconductor Protection, Offset Bolted Tags (Blade × Blade), 200 kA RMS Sym AC / 50 kA DC, Stud Mount — Pack of 10

The Eaton Bussmann 90FE is a high‑speed British‑standard fuse designed for semiconductor and power‑electronics protection. Built for demanding industrial applications—DC common bus, DC drives, power converters and rectifiers—the single‑barrel FE design features offset bolted tag terminals (blade × blade) and stud mounting. This listing is for a pack of 10 fuses.

Key specifications

• Manufacturer / Brand: Eaton (Bussmann)
• Manufacturer part number: 90FE
• Series: FE (British standard, single‑barrel)
• Product type: High‑speed British‑standard fuse (aR)
• Amperage rating: 90 A
• Utilization category: aR (semiconductor protection)
• Rated voltage (AC): 690 VAC (IEC) — primary shown
• Rated voltage (DC): 500 VDC
• Breaking / interrupting capacity: 200 kA RMS Sym (AC)
• DC breaking capacity: 50 kA at 500 VDC
• Rated switching capacity: 200 kA
• Clearing (I2t): 1300 (at 415 V), 2100 (at 660 V)
• Pre‑arc (I2t): 360
• Watt losses: 20 W
• Fuse shape / termination: Offset bolted tags (blade end × blade end)
• Mounting method: Stud (M6 mounting dimension)
• Center‑to‑center distance of connections: 61.8 mm
• Fuse indicator: None (suitable for optional EC‑600 / TI700 indicator kits)
• Frequency / current type: AC/DC
• Body / construction size: Other (British‑standard FE form)
• Typical applications: Semiconductor protection, DC common bus, DC drives, power converters/rectifiers
• Packaging: Standard — pack of 10
• UPC: 051712838351; EAN: 5027590491365
• Compliance: CE marked, RoHS compliant; UL/IEC ratings per catalog

Features & benefits

• High interrupting capacity (200 kA RMS Sym AC) for robust fault clearing in heavy industrial systems.
• aR characteristic tailored for fast protection of power semiconductors.
• Offset bolted tag (blade) terminals and stud mounting provide secure, low‑inductance connections suitable for high‑current installations.
• Compatible with Eaton indicator/adaptor accessories (EC‑600, TI700, MAI/MBI microswitch adaptors) for enhanced monitoring.

Installation & handling notes

• Install using specified M6 stud mounting and maintain the 61.8 mm center‑to‑center spacing for correct fit.
• When adding indicators or microswitch adaptors, use Eaton recommended kits for compatibility.
• Replace with identical FE series fuse to preserve aR protection characteristics and I2t performance.
• Observe rated AC/DC voltages and interrupting capacity to ensure safe system protection.

Ordering & resources

• Order by Eaton Bussmann 90FE. Consult Eaton/Bussmann datasheet and catalog for full I2t curves, mechanical drawings and accessory compatibility.