Bussmann 170M-568 Class aR Square Body Fuse, Non-Indicating

Bussmann 170M-568 Class aR Square Body Fuse, Non-Indicating

The Bussmann 170M-568 is a Class aR square body fuse engineered for dependable overcurrent protection in demanding industrial power distribution systems. Built with a square body US-style construction (-FU/115 without indicator), this fuse carries a voltage rating up to 1250V along with a 690V (IEC) rating and a 100 kAIC interrupt rating for high fault-current withstand capability. The 170M-568 family is available in 250A and 350A amp ratings, letting installers match the correct fuse to the load and protection requirement without changing body style or mounting footprint. Its non-indicating design keeps the fuse body simple and standardized for applications where a blown-fuse indicator is not required, and the unit carries CE Marked compliance for use in qualifying installations.

Key Features

• Amp Rating Range: Available in 250A and 350A ratings so the correct fuse can be matched to the circuit's load requirements.
• Voltage Rating: Rated up to 1250V with a 690V (IEC) rating for demanding industrial power distribution applications.
• Fuse Class: Class aR construction, well suited to protecting power circuits and semiconductor-based equipment.
• Interrupt Rating: 100 kAIC interrupt rating delivers high fault-current withstand capability for critical distribution points.
• Body Style: Square body US style (-FU/115 without indicator) for compatibility with standard US-style fuse holders and disconnects.
• Fuse Indicator: Non-indicating design for standardized installations that do not require a blown-fuse indicator.
• Packaging: Standard packaging type for straightforward stocking and distribution.

Certifications & Compliance

• CE Marked

Technical Specifications

• Class: Class aR
• Product Type: Square body US style, -FU/115 without indicator
• Interrupt Rating: 100 kAIC
• Voltage Rating: 690 V (IEC)
• Fuse Indicator: Non Indicating
• Compliances: CE Marked
• Packaging Type: Standard

Typical Applications

• Industrial Power Distribution Systems
• Semiconductor and Rectifier Circuit Protection
• Motor Drive and Power Electronics Protection
• Panelboard and Switchgear Overcurrent Protection
• High Fault-Current Industrial Installations

Why Bussmann?

Bussmann engineers its fuses for reliable, code-compliant performance in the most demanding electrical environments. The 170M-568's Class aR square body construction, 100 kAIC interrupt rating, 690V (IEC) voltage rating, and CE Marked compliance combine to give electrical professionals the dependable overcurrent protection Bussmann is known for across industrial power distribution, motor drive, and switchgear applications where consistent performance under fault conditions is essential.