Description
Eaton Bussmann 40ET – 40 A, 690 V AC / 500 V DC Bolted Tag Type Semiconductor Fuse-Link
The 40ET is a BS88 type high speed fuse-link from Eaton’s Bussmann series, rated at 40 A for 690 V AC / 500 V DC circuits. It is designed for semiconductor protection, providing ultra-fast, low I²t let-through clearance to protect power semiconductor devices — diodes, thyristors (SCRs) and IGBTs — in rectifiers, converters, drives and UPS systems. It has a bolted eyelet-tag body suited to mid-current rectifier and converter circuits.
Key Product Benefits
- Ultra-Fast Acting: Low I²t let-through protects semiconductor junctions before device damage can occur.
- 200 kA Breaking Capacity: Rated for the high fault currents typical of power electronic circuits.
- BS88 Type Construction: Standardised tag/bolted body for compatibility with BS88 fuse holders and clips.
- Silver Element: Cool running with low watts loss for stable long-term operation.
- 100% X-Ray Tested: Every Bussmann fuse-link is X-rayed for element integrity before dispatch.
Available with Shansen Enterprises — authorized dealer of Eaton Bussmann, RR Kabel, Secure Meters, Indo-Tech and other leading electrical brands in Coimbatore.




