Bussmann 170M3741 Class aR Square Body Fuse, 100A 1000V
The Bussmann 170M3741 is a Class aR square body semiconductor fuse rated 100A and 1000V, engineered to protect solid-state power devices in demanding DC applications. Built in the US-style square body configuration with an -FKE/115 type body, this fuse delivers a 100 kAIC interrupt rating for high fault-current protection on DC common bus systems, DC drives, power converters/rectifiers, and reduced voltage starters. It is CSA Certified and CE Marked, giving specifiers a documented, code-compliant option for critical power protection.
Key Features
- Amperage Rating: 100A for dependable overcurrent protection in DC power circuits.
- Voltage Rating: Rated 1000V, with clearing I²t data documented at both 1000V and 1250V for demanding DC bus coordination.
- Class aR Design: Semiconductor-protection fuse class purpose-built for power converters, rectifiers, and DC drives.
- Interrupt Rating: 100 kAIC interrupt rating supports high fault-current environments.
- Fuse Indicator: Non-indicating element construction.
- Square Body Construction: US-style square body, -FKE/115 type body configuration.
- I²t Characteristics: Pre-arc I²t of 750 and clearing I²t of 4450 at 1000V / 5950 at 1250V for precise system coordination.
- Watt Loss: 30W watt-loss rating for accurate thermal and panel-design planning.
Certifications & Compliance
- CSA Certified
- CE Marked
Technical Specifications
- Amperage Rating: 100 A
- Voltage Rating: 1000 V
- Class: Class aR
- Interrupt Rating: 100 kAIC
- Fuse Indicator: Non Indicating
- Pre Arc I²t: 750
- Clearing I²t: 4450 at 1000 V, 5950 at 1250 V
- Watt Losses: 30 W
- Certifications: CSA Certified
- Compliances: CE Marked
- Packaging Type: Standard
- Product Height: 60 mm
- Product Length Depth: 92 mm
- Product Width: 163 mm
- Product Weight: 956 g
- Product Details: Square body US style, -FKE/115 type K indicator for micro
Typical Applications
- DC Common Bus Systems
- DC Drives
- Power Converters and Rectifiers
- Reduced Voltage Starters
Why Bussmann?
Bussmann semiconductor fuses like the 170M3741 combine a rugged square body construction with a documented 100 kAIC interrupt rating and precise pre-arc/clearing I²t values, giving engineers the data needed for tight system coordination. CSA certification and CE marking back its use in professional DC drive, converter, and rectifier protection schemes where reliable, code-compliant performance is essential.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 100 A
- Certifications:
- CSA Certified
- Class:
- Class aR
- Clearing I2t:
- 4450 at 1000 V, 5950 at 1250 V
- Compliances:
- CE Marked
- Fuse Indicator:
- Non Indicating
- Interrupt Rating:
- 100 kAIC
- Packaging Type:
- Standard
- Pre Arc I2t:
- 750
- Product Height:
- 60 mm
- Product Length Depth:
- 92 mm
- Product Weight:
- 956 g
- Product Width:
- 163 mm
- Voltage Rating:
- 1000 V
- Watt Losses:
- 30 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Square Body Fuses
- Product Type:
- Fuse