BUSSMANN 170M6419

Bussmann 170M6419 High-Speed Semiconductor Fuse

Description

The Bussmann 170M6419 is a high-performance square body fuse designed for the critical protection of power electronics and semiconductor devices. With a rating of 1600A and 700V AC, this fuse offers superior short-circuit protection, safeguarding components like diodes, thyristors, GTOs, and IGBTs in high-power applications such as frequency converters, UPS systems, and rectifiers.

Specifications

• Manufacturer: Bussmann (Eaton)
• Model Number: 170M6419
• Current Rating: 1600 A
• Voltage Rating (AC): 700 V
• Voltage Rating (IEC): 690 V
• Fuse Class: aR (Semiconductor Protection)
• Interrupting Rating: 200 kA
• Mounting Style: Bolt-on
• Body Style: Square Body

Label Info

• Type: 3BN/65
• Resistance: 0.0393 mOhm (at 21 deg C)
• Certifications: CE, CCC, CSA (SP)

Application

This fuse is specifically engineered for use in power conversion equipment, variable speed drives, soft starters, and other high-power semiconductor circuits that require fast-acting protection against short-circuit currents.

Country of Origin

Made in Denmark.

CO2 Impact

By purchasing this pre-owned fuse, you are contributing to a circular economy and avoiding approximately 60 kg of CO2 emissions associated with the production of a new unit. This is comparable to the emissions of a 300 km car journey.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

Question?
What does the ‘aR’ rating on this Bussmann 170M6419 fuse signify?
Answer:

The ‘aR’ class designation indicates a partial-range, high-speed fuse. It is specifically designed for short-circuit protection of power semiconductors like diodes, thyristors, and IGBTs. It is not intended for overload protection.

Question?
Can I replace a standard ‘gG’ fuse with this ‘aR’ fuse?
Answer:

No, this is not recommended. A ‘gG’ fuse provides full-range protection (both overload and short-circuit), while this ‘aR’ fuse only protects against short-circuits. Using an ‘aR’ fuse in a ‘gG’ application would leave the circuit unprotected against overloads.

Question?
What is the function of the red dot indicator on the fuse body?
Answer:

The red dot is a visual trip indicator. If the fuse operates (blows) due to a short-circuit, a small pin will pop out from this indicator. This provides an immediate visual confirmation that the fuse needs to be replaced.

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Last Update: Friday, March 13, 2026