FUJI CS5F-600 Cubic Shaped Super Rapid Fuse | Replacement, Equivalent & Selection Guide
The FUJI CS5F-600 is a cubic shaped super rapid-acting fuse engineered for semiconductor and power electronics protection. This page provides full technical specifications, compatible replacement models, application guidance, and a selection guide to help engineers and procurement teams make confident sourcing decisions.
Technical Specifications
- Manufacturer: FUJI ELECTRIC
- Model / SKU: CS5F-600
- Series: CS5F (Cubic Super Rapid Fuse)
- Type: Cubic Shaped Super Rapid-Acting Fuse
- Rated Voltage: 600V AC/DC (confirm with datasheet)
- Breaking Capacity: High current-limiting capability for semiconductor protection
- Body Style: Cubic / Square body
- Standards: IEC 60269 / JIS C 8312 (verify with official datasheet)
- Weight: ~20 kg (shipping weight)
Note: Always verify specifications against the official FUJI ELECTRIC datasheet before installation.
Compatible Replacement & Equivalent Models
The following models may serve as direct or functional replacements for the FUJI CS5F-600. Always verify electrical ratings, dimensions, and terminal compatibility before substitution:
- FUJI CS5F Series – Same series, different current ratings (e.g., CS5F-400, CS5F-500, CS5F-800)
- FUJI CS6F-600 – Next-generation cubic rapid fuse, check dimensional compatibility
- Bussmann FWH-600A – High-speed semiconductor fuse, 600V equivalent
- Ferraz Shawmut / Mersen A50QS600-4 – 600V class J high-speed fuse alternative
- Littelfuse L50S600 – 600V ultra-rapid fuse for drive and inverter protection
- ABB OFAF000H600 – IEC-rated high-speed fuse, 600V class
⚠ Important: Cross-referencing must include: rated voltage, current rating (A), I²t value, breaking capacity, and physical dimensions. Consult your system engineer before substitution.
Why Choose the Original FUJI CS5F-600
- ✅ OEM Precision: Designed specifically for FUJI ELECTRIC drive and converter systems
- ✅ Guaranteed I²t Coordination: Matched to FUJI semiconductor protection curves
- ✅ Proven Reliability: Validated in industrial environments across Asia and globally
- ✅ Warranty Compliance: Using OEM fuses preserves equipment warranty
- ✅ Traceable Sourcing: Konmask.com supplies verified, traceable FUJI components
Typical Applications
- AC/DC variable frequency drives (VFD) and inverters
- Servo drive input/output protection
- Thyristor (SCR) and IGBT module protection
- Industrial power converters and rectifiers
- UPS systems and power conditioning equipment
- CNC machine tool control panels
- Elevator and crane drive systems
System Compatibility
The FUJI CS5F-600 is commonly used in conjunction with:
- FUJI FRENIC Series VFDs – FRENIC-Ace, FRENIC-Multi, FRENIC-MEGA
- FUJI FALDIC Servo Systems
- FUJI Power Converters – 5000 series and legacy industrial drives
- Third-party drives rated at 600V requiring cubic-body rapid fuse protection
Selection Guide
Use the following criteria to confirm the CS5F-600 is the correct fuse for your application:
- Step 1 – Voltage Rating: Confirm system voltage ≤ 600V AC or DC
- Step 2 – Current Rating: Match fuse current (A) to drive input current × 1.5–2× safety factor
- Step 3 – I²t Value: Verify fuse I²t is lower than semiconductor withstand I²t
- Step 4 – Physical Fit: Confirm cubic body dimensions and terminal type match fuse holder
- Step 5 – Standards: Ensure compliance with IEC 60269 or applicable local standard
Not sure which model fits? Contact our technical team with your drive model number for a free selection recommendation.
Quality Assurance & Sourcing
- 🔍 Authentic Components: All FUJI fuses sourced through verified supply channels
- 📦 Original Packaging: Shipped in OEM packaging with batch traceability
- 🏭 Industrial-Grade Stock: Suitable for MRO, OEM, and project procurement
- 📋 Documentation Available: Test reports and certificates of conformance on request
How to Order
- Add FUJI CS5F-600 to cart and proceed to checkout
- For bulk / project orders: email [email protected] for a custom quote
- Lead time: typically 3–7 business days for in-stock items; 2–4 weeks for special orders
- Shipping: DHL / FedEx / UPS international express available worldwide
- Payment: T/T, PayPal, credit card accepted
Replacement & Compatibility FAQ
Q: Can I replace CS5F-600 with a standard slow-blow fuse?
A: No. Super rapid fuses have a much lower I²t than standard fuses. Using a slow-blow fuse will not protect semiconductors and may cause equipment damage.
Q: Is the CS5F-600 the same as CS6F-600?
A: They are different series. CS6F is a newer generation. Verify dimensional and electrical compatibility before substitution.
Q: What current rating is the CS5F-600?
A: The “600” in the model number refers to the voltage rating (600V). Please contact us or refer to the FUJI datasheet to confirm the ampere rating for your specific part number variant.
Q: Do you supply FUJI fuses for export?
A: Yes. Konmask.com ships globally. Contact us for export documentation and customs support.
Q: Can I get a certificate of conformance?
A: Yes, available on request for qualified orders.
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