Bussmann 170M-351-INDICA-3517 High-Speed Fuse-Link, Class aR, 50A 1250V AC

Bussmann 170M-351-INDICA-3517 High-Speed Fuse-Link, Class aR, 50A 1250V AC

The Bussmann 170M-351-INDICA-3517 is a high-speed fuse-link engineered for demanding semiconductor protection duty, rated 50A at 1250V AC in a compact size 1 body measuring 45 x 59 x 156 mm. Built to Class aR (accompanied semiconductor protection) utilization, this fuse-link carries UL and IEC ratings and is designed to safeguard power electronics where fast, predictable clearing is critical. A top-mounted fuse status indicator gives at-a-glance visual confirmation of fuse condition, simplifying maintenance checks on DC drives, converters, and rectifier systems.

Key Features

• Compact Size 1 Body: 45 x 59 x 156 mm dimensions for space-conscious panel and enclosure layouts.
• Electrical Rating: 50A at 1250V AC with a 100 kAIC interrupt rating for high-fault-current environments.
• Class aR Utilization: Accompanied semiconductor protection category for coordinated overcurrent protection of power semiconductors.
• Fuse Shape: Square body with center bolted tags for secure, low-resistance mounting connections.
• Top Fuse Status Indicator: Allows quick visual verification of fuse condition without removal.
• Clearing Characteristics: Pre-arc I2t of 135 and clearing I2t of 815 at 1000V / 1100 at 1250V for precise coordination with semiconductor ratings.
• Watt Losses: 15W rated loss for efficient thermal performance in continuous operation.

Certifications & Compliance

• UL Listed
• IEC Rated
• CSA Certified
• CE Marked

Technical Specifications

• Application: DC common bus, DC drives, power converters/rectifiers, reduced voltage starters
• Class: Class aR
• Clearing I2t: 815 at 1000V, 1100 at 1250V
• Fuse Indicator: Top fuse status indicator
• Fuse Shape: Square body, center bolted tags
• Insulated Metal Gripping Lugs (IMGL): No
• Interrupt Rating: 100 kAIC
• Pre Arc I2t: 135
• Product Height: 59 mm
• Product Width: 45 mm
• Product Weight: 408.233 g
• Voltage Type: AC
• Watt Losses: 15W

Typical Applications

• DC Common Bus Systems
• DC Drives
• Power Converters and Rectifiers
• Reduced Voltage Starters
• Industrial Power Electronics Protection

Why Bussmann?

Bussmann fuse-links are built for coordinated, code-compliant protection of sensitive power semiconductor equipment. With UL and IEC ratings, CSA certification, and CE marking backing this fuse-link, along with a documented 100 kAIC interrupt rating and precise pre-arc/clearing I2t characteristics, this fuse-link delivers the reliability professional electricians and panel builders expect for critical DC drive and converter protection applications.