Bussmann 170M5496 Eaton Series High-Speed Square Body Fuse, Class aR, 630A

Bussmann 170M5496 Eaton Series High-Speed Square Body Fuse, Class aR, 630A

The Bussmann 170M5496 is an Eaton series high-speed square body fuse engineered for demanding semiconductor protection applications, rated 630A with a voltage rating of 1300V (UL) and 1250V (IEC) and a 100 kAIC interrupting rating. Classified as a Class aR fuse, it features a flush end square body construction for reliable, code-compliant high-speed circuit protection. The fuse is UL Recognized and CE Marked for demanding industrial power electronics applications. With a pre-arc I2t of 115,000 and clearing I2t ratings of 575,000 at 1000V and 730,000 at 1250V, this fuse delivers the fast-acting current-limiting performance semiconductor devices require.

Key Features

• Electrical Rating: 630A at 1300V (UL) / 1250V (IEC) for high-capacity semiconductor circuit protection.
• High Interrupting Capacity: 100 kAIC rating provides robust short-circuit protection in demanding power electronics systems.
• Class aR Utilization: Designed for accompanied semiconductor protection, ideal for coordinated fuse protection schemes.
• Square Body, Flush Design: Square body fuse shape with flush end contacts for compact, high-speed installations.
• Current-Limiting Performance: Pre-arc I2t of 115,000 and clearing I2t of 575,000 at 1000V and 730,000 at 1250V for fast fault clearing.
• Low Watt Loss: Rated at 110W watt loss for efficient thermal performance.
• Semiconductor Protection Design: Purpose-built for protecting semiconductor devices in industrial power conversion equipment.

Certifications & Compliance

• UL Recognized
• CE Marked

Technical Specifications

• Amperage Rating: 630 A
• Application: semiconductor protection
• Certifications: UL Recognized
• Clearing I2t: 575000 at 1000 V, 730000 at 1250 V
• Compliances: CE Marked
• Fuse Shape: Square body, flush end contacts
• Insulated Metal Gripping Lugs (IMGL): No
• Packaging Type: Standard
• Pre Arc I2t: 115000
• Product Height: 80 mm
• Product Length Depth: 168 mm
• Product Weight: 818 g
• Product Width: 124 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 1250 V
• Voltage Type: AC
• Watt Losses: 110 W

Typical Applications

• Semiconductor Protection in Power Electronics
• Variable Frequency Drives and Motor Controls
• Industrial Power Conversion Equipment
• High-Speed Circuit Protection Systems
• Coordinated Fuse Protection Schemes

Why Bussmann?

Bussmann by Eaton is a trusted name in circuit protection, and the 170M5496 reflects that standard with UL Recognized and CE Marked construction built for demanding semiconductor protection duty. Its high-speed Class aR design, 100 kAIC interrupting rating, and precise pre-arc and clearing I2t characteristics make it a dependable choice for engineers specifying reliable, code-compliant fuse protection in industrial power electronics.