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170M6665
Eaton - Bussmann Electrical Division
FUSE SQUARE 1.1KA 700VAC RECT
5508 Pcs New Original In Stock
1.1kA 700 VAC Fuse Square Bolt Mount
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5.0 / 5.0
- (284 Ratings)
170M6665
Product Overview
5699577
DiGi Electronics Part Number
170M6665-DGManufacturer
Eaton - Bussmann Electrical Division
170M6665
Description
FUSE SQUARE 1.1KA 700VAC RECTInventory
5508 Pcs New Original In Stock
1.1kA 700 VAC Fuse Square Bolt Mount
Quantity
Minimum 1
Minimum 1
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170M6665 Technical Specifications
Category
Electrical, Specialty Fuses
Packaging
Bulk
Series
-
Product Status
Active
Mounting Type
Bolt Mount
Fuse Type
Square
Current Rating (Amps)
1.1kA
Voltage Rating - AC
700 VAC
Response Time
-
Applications
Electrical, Industrial
Features
-
Class
-
Approval Agency
CE, CSA, UR
Operating Temperature
-
Breaking Capacity @ Rated Voltage
200kA
Package / Case
Rectangular, Blade
Size / Dimension
2.008" L x 2.992" W x 3.622" H (51.00mm x 76.00mm x 92.00mm)
Melting I²t
190000
Datasheet & Documents
HTML Datasheet
170M6665-DG
Environmental & Export Classification
RoHS Status
RoHS Compliant
Moisture Sensitivity Level (MSL)
Not Applicable
ECCN
EAR99
HTSUS
8536.10.0040
Additional Information
Standard Package
1
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
Leurs emballages sont conçus pour la durabilité et la sécurité, ce qui est essentiel pour nos produits sensibles.
Dec 02, 2025
透明な価格体系のおかげで、コスト計画が立てやすく助かっています。
Dec 02, 2025
DiGi Electronics has consistently delivered my orders faster than expected, really impressing me with their logistics efficiency.
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Frequently Asked Questions (FAQ)
Can the Eaton 170M6665 fuse be safely used as a direct replacement for a Ferraz Shawmut A50QS1100-4 in a 600VAC industrial motor drive application, and what risks should I evaluate before making the swap?
While both the Eaton 170M6665 and Ferraz Shawmut A50QS1100-4 are 1.1kA, 700VAC square blade fuses with similar physical dimensions, direct replacement requires careful evaluation of interrupting capacity and time-current characteristics. The 170M6665 has a verified 200kA breaking capacity at rated voltage, which exceeds typical industrial fault levels, but its melting I²t of 190,000 A²s may differ from the A50QS series, potentially affecting coordination with upstream/downstream protective devices. Verify that your system’s available fault current does not exceed 200kA and confirm through time-current curve overlay that the 170M6665 provides equivalent or better protection for semiconductor loads. Always revalidate selective coordination if used in a tiered protection scheme.
What are the critical thermal and mounting considerations when installing the Eaton 170M6665 fuse in a high-vibration environment such as a mobile mining power distribution unit?
The Eaton 170M6665’s bolt-mount design offers better mechanical stability than clip-in fuses, but in high-vibration settings like mobile mining equipment, improper torque or inadequate contact pressure can lead to arcing, overheating, or premature failure. Use hardened flat washers and lock washers on both terminals, and torque mounting bolts to the manufacturer’s specification (typically 12–15 N·m for M8 hardware) to ensure consistent contact resistance. Additionally, ensure the fuse block or busbar material has a compatible coefficient of thermal expansion to avoid loosening over thermal cycles. Consider adding vibration-dampening mounts or conformal coating on adjacent circuitry to mitigate micro-arcing risks under sustained mechanical stress.
How does the Eaton 170M6665 perform under repeated inrush currents from transformer or capacitor bank switching, and could this lead to nuisance blowing despite being rated for 1.1kA continuous current?
The Eaton 170M6665 is a high-speed, semiconductor-protective fuse with a relatively low melting I²t (190,000 A²s), making it sensitive to repetitive high-magnitude inrush events—even if below its 1.1kA RMS rating. In applications with frequent capacitor bank switching or transformer magnetizing inrush (e.g., >10× rated current for 10–50 ms), cumulative I²t energy can degrade the element over time, leading to premature failure. To mitigate this, calculate the total I²t of each inrush event and ensure the sum over the expected operational life remains below 75% of the fuse’s total melting I²t. If inrush is severe or frequent, consider using a time-delay fuse like the Eaton 170M6480 (same series, higher I²t) or add inrush current limiters (ICLs) to reduce stress on the 170M6665.
Is the Eaton 170M6665 suitable for protecting IGBT-based inverter outputs in a 700VAC renewable energy system, and how should I coordinate it with downstream MOVs or TVS diodes?
Yes, the Eaton 170M6665 is well-suited for protecting IGBTs in 700VAC inverter outputs due to its fast-acting characteristic and high interrupting capacity (200kA), but coordination with transient suppressors like MOVs or TVS diodes is critical. The fuse must clear fault currents before semiconductor damage occurs, while allowing MOVs to clamp voltage transients without forcing the fuse to interrupt energy they absorb. Ensure the MOV’s energy rating and response time are compatible—typically, MOVs handle microsecond-level surges, while the 170M6665 responds in milliseconds. Place the fuse as close as possible to the DC link or AC output terminals to minimize parasitic inductance, and validate the combined response using short-circuit simulation or empirical testing under worst-case fault conditions to prevent race conditions between protection devices.
What derating factors should I apply when using the Eaton 170M6665 in an enclosed control panel operating at 55°C ambient temperature, and how does this impact its effective current-carrying capacity?
Although the Eaton 170M6665’s datasheet does not specify an operating temperature range, high ambient temperatures inside enclosed panels significantly reduce its current-carrying capability due to reduced heat dissipation. As a rule of thumb for high-speed fuses, derate by approximately 0.5% per °C above 25°C. At 55°C ambient, this implies a 15% derating, reducing the effective continuous current from 1.1kA to roughly 935A. Additionally, poor airflow or proximity to other heat sources (e.g., transformers, rectifiers) can further elevate local temperature. To maintain reliability, ensure adequate spacing (≥1 inch) around the fuse, consider forced airflow, or select a higher-rated fuse like the 170M6670 (1.25kA) if sustained loads exceed 900A. Always monitor fuse body temperature in prototype testing to validate thermal performance under real-world conditions.
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170M6665 CAD Models
Eaton - Bussmann Electrical Division 170M6665 PCB symbols & footprints
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