Eaton Bussmann 170M5812D Fuse, 630A, 690V, aR, DIN 2, Dual Indicator — Pack of 9

The Eaton Bussmann 170M5812D is a DIN 43620 square‑body high‑speed fuse engineered for fast clearing in power‑electronics and semiconductor protection applications. Featuring blade‑to‑blade Din 43‑620 contacts and a combination (dual) fuse status indicator, this size‑2 fuse is suited for industrial power converters, DC drives and rectifier installations. This listing is supplied as a pack of 3.

Key specifications

• Manufacturer / Brand: Eaton (Bussmann)
• Manufacturer part number: 170M5812D
• Series / Type: DIN 43620 square‑body high‑speed fuse, class aR (semiconductor protection)
• Amperage rating: 630 A
• Utilization category: aR (accompanied semiconductor protection)
• Fuse size / construction size: Size 2 (DIN 43620)
• Rated voltage (AC): 690 VAC (IEC) — primary; 700 V (UL) listed
• Interrupting / breaking capacity: 200 kA (200 kAIC)
• Fuse indicator: Combination fuse status indicator (dual indicator)
• Connection / termination: Din 43‑620 blade end × Din 43‑620 blade end (knife blade contacts)
• Center dimensions / mounting: (use compatible DIN 43620 holders; verify mechanical drawing)
• Clearing (I2t): 295,000 at 660 V (manufacturer data)
• Pre‑arc (I2t): 41,000 (manufacturer data)
• Watt losses: 42 W
• Shape / housing: Square body with blade contacts
• Packaging: Standard — pack of 3
• UPC: 051712334525; EAN: 5027590460880
• Compliance / certifications: CE marked, RoHS compliant, IEC rated, UL recognized

Features & benefits

• High 200 kAIC interrupting capacity for robust fault clearing in heavy industrial systems.
• aR characteristic optimized to protect power semiconductors with fast clearing behavior.
• Combination (dual) indicator enables clear, reliable status feedback for maintenance.
• Blade‑to‑blade Din 43‑620 contacts provide secure, low‑inductance connection suitable for high current installations.
• Size‑2 DIN 43620 form factor for compatibility with standard holders and mounting hardware.

Typical applications

• Semiconductor protection (IGBT/thyristor modules)
• Power converters and rectifiers
• DC common bus and DC drives requiring fast‑acting protection

Installation & handling notes

• Install in compatible DIN 43620 holders; verify correct mechanical spacing and blade contact orientation.
• Replace only with identical Eaton DIN 43620 aR fuses to maintain specified protection characteristics and I2t performance.
• Use Eaton‑approved indicator accessories where applicable.
• Observe rated voltage and interrupting capacity to ensure safe system protection.

Ordering & resources

• Order by Eaton Bussmann 170M5812D (pack of 3). Refer to Eaton/Bussmann datasheet for full mechanical drawings, I2t curves and accessory compatibility.