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Bussmann 170M5561 Class aR High-Speed Fuse, 550A, 200kAIC
The Bussmann 170M5561 is a Class aR high-speed fuse engineered for demanding DC power applications, including DC common bus systems, DC drives, and power converters/rectifiers. Rated at 550A RMS with a 200 kAIC interrupt rating, this square body fuse delivers dependable overcurrent protection for semiconductor circuits and power conversion equipment. Backed by UL Recognized and IEC Rated certifications, it is engineered for professional electrical and industrial power applications where precise fault coordination matters.
Key Features
- Amperage Rating: 550A RMS current rating delivers reliable overcurrent protection for high-power DC circuits.
- Fuse Class: Class aR high-speed fuse construction designed for fast-acting semiconductor and power converter protection.
- Interrupt Rating: 200 kAIC interrupt rating provides dependable performance in high fault-current environments.
- Square Body Design: Square body -GKN/- type K indicator for micro construction supports compact panel layouts.
- Mounting Method: Flush mounting method suited for compact panel and enclosure installations.
- Fuse Indicator: Non-indicating design for standard visual monitoring setups.
- I2t Coordination: Pre-arc I2t of 28000 and clearing I2t of 190000 (at 660V) support precise system coordination.
- Watt Losses: 80W power dissipation rating supports accurate thermal system design.
Certifications & Compliance
- UL Recognized
- IEC Rated
- CE Marked
- RoHS Compliant
Technical Specifications
- Amperage Rating: 550A
- Application: DC common bus, DC drives, power converters/rectifiers
- Class: Class aR
- Clearing I2t: Clearing at 660V: 190000
- Current Rating: 550A RMS
- Fuse Indicator: Non Indicating
- Interrupt Rating: 200 kAIC
- Packaging Type: Standard
- Pre Arc I2t: 28000
- Watt Losses: 80W
- Product Type: Square body -GKN/- type K indicator for micro
- Product Length: 5.433 IN
- Product Details: Square body -GKN/- type K indicator for micro
- Mounting Method: Flush
- Product Height: 2.087 IN
- Product Weight: 1.6456 LB
- Product Width: .315 IN
Typical Applications
- DC Common Bus Systems
- DC Drives
- Power Converters and Rectifiers
- Semiconductor Circuit Protection
- Industrial Power Distribution Equipment
Why Bussmann?
Bussmann is a trusted name in circuit protection, and the 170M5561 Class aR high-speed fuse reflects that standard with its 550A RMS current rating, 200 kAIC interrupt rating, and UL Recognized, IEC Rated certifications. Its square body construction, flush mounting method, and precise pre-arc and clearing I2t characteristics make it a dependable choice for professionals protecting DC drives, converters, and rectifiers in demanding industrial power systems.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 550A
- Application:
- DC common bus, DC drives, power converters/rectifiers
- Class:
- Class aR
- Clearing I2t:
- Clearing at 660V: 190000
- Current Rating:
- 550A RMS
- Fuse Indicator:
- Non Indicating
- Interrupt Rating:
- 200 kAIC
- Packaging Type:
- Standard
- Pre Arc I2t:
- 28000
- Watt Losses:
- 80W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Length:
- 5.433 IN
- Product Details:
- Square body -GKN/- type K indicator for micro
- Mounting Method:
- Flush
- Product Height:
- 2.087 IN
- Product Weight:
- 1.6456 LB
- Product Width:
- .315 IN