Bussmann 170M-312 High Speed Square Body Fuse, Class aR Semiconductor Protection, DIN 43620

Bussmann 170M-312 High Speed Square Body Fuse, Class aR Semiconductor Protection, DIN 43620

The Bussmann (Eaton) high speed square body fuse is engineered for accompanied semiconductor protection in demanding industrial power circuits. Rated 1250V (IEC) / 1300V (UL) with a 200 kAIC interrupt rating and Class aR utilization category, this DIN 43620 blade end x blade end fuse is available across amp ratings from 100A to 630A (100A, 125A, 160A, 250A, 500A, 550A, 630A) to match your circuit's current-carrying requirements. Designed as a specialty fuse type for semiconductor protection applications, it is CE marked for compliance-driven electrical installations.

Key Features

• Amp Rating Range: Available in 100A, 125A, 160A, 250A, 500A, 550A, and 630A ratings to precisely match circuit current demands.
• Voltage Rating: Rated 1250V (IEC) and 1300V (UL) for high-voltage semiconductor protection circuits.
• Interrupt Rating: 200 kAIC interrupt rating delivers robust short-circuit protection performance.
• Connection Type: Blade end x blade end terminal configuration for straightforward mounting in compatible fuse holders and disconnects.
• Utilization Category: Class aR (accompanied semiconductor protection) design targets semiconductor devices requiring overload backup protection.
• Standard: Built to the DIN 43620 dimensional standard for square body fuses.
• Square Body Construction: High speed square body design supports rapid current-limiting response for sensitive semiconductor loads.

Certifications & Compliance

• CE Marked

Technical Specifications

• Voltage Type: AC
• Insulated Metal Gripping Lugs Imgl: No
• Mounting Method: DIN 43 620
• Amperage Rating: 100A - 630A

Typical Applications

• Semiconductor Protection Circuits
• Industrial Power Electronics and Rectifier Assemblies
• Motor Drive and Converter Protection
• High Speed Current-Limiting Applications
• Panelboard and Switchgear Protection

Why Bussmann?

Bussmann by Eaton engineers this high speed square body fuse to the DIN 43620 dimensional standard with a Class aR utilization category purpose-built for accompanied semiconductor protection. With a 200 kAIC interrupt rating, dual 1250V (IEC) / 1300V (UL) voltage rating, and CE marked compliance across its 100A-630A range, it delivers reliable, code-compliant performance for demanding industrial electrical systems.