Bussmann 170M-436 High-Speed Square Body Fuse, Class aR, 1000V

Bussmann 170M-436 High-Speed Square Body Fuse, Class aR, 1000V

The Bussmann 170M-436 High-Speed Square Body Fuse is an Eaton Bussmann series fuse engineered for demanding semiconductor protection applications where fast clearing of fault current is critical to protecting sensitive power electronics. Rated 1000V with a 100 kAIC interrupting rating, this Class aR fuse is intended for accompanied semiconductor protection, meaning it is applied alongside a properly coordinated circuit breaker or contactor rather than as stand-alone overload protection. The 170M series square body fuse platform is available in amp ratings from 200A to 630A, allowing the same high-speed, current-limiting protection profile to be matched to the specific load requirements of a wide range of power semiconductor circuits, rectifiers, and drive systems.

Key Features

• Voltage Rating: 1000V rating suited for high-voltage semiconductor protection circuits.
• Interrupting Rating: 100 kAIC interrupting capacity for reliable performance under high fault-current conditions.
• Utilization Category: Class aR (accompanied semiconductor protection) fuse, applied with an upstream circuit breaker or contactor rather than for stand-alone overload duty.
• Amp Rating Range: Available in amp ratings from 200A to 630A across the 170M series, allowing the platform to be sized to the specific semiconductor load.
• Voltage Type: Rated for AC voltage type semiconductor protection circuits.
• Square Body Design: High-speed square body fuse construction built for fast clearing of fault current in power electronics circuits.
• Terminal Construction: Supplied without insulated metal gripping lugs (IMGL).
• Packaging: Standard packaging type.

Technical Specifications

• Voltage Type: AC
• Utilization Category: aR (accompanied semiconductor protection)
• Packaging Type: Standard
• Application: semiconductor protection
• Insulated Metal Gripping Lugs Imgl: No

Typical Applications

• Semiconductor Protection Circuits
• Variable Frequency Drives and Power Electronics
• Industrial Motor Control and Rectifier Circuits
• High-Speed Fault Current Protection for AC Power Systems
• Panelboard and Switchgear Semiconductor Fuse Protection
• Coordinated Protection Alongside Upstream Circuit Breakers and Contactors

Why Bussmann?

Bussmann by Eaton is a trusted name in circuit protection, and the 170M series high-speed square body fuse line is purpose-built for the demanding performance requirements of semiconductor protection. With a 1000V rating, 100 kAIC interrupting rating, and Class aR utilization category spanning amp ratings from 200A to 630A, this fuse platform delivers the fast-acting, high-fault-current performance that power electronics, rectifier, and drive applications require for coordinated, code-compliant circuit protection.