Mersen A6D400R Fuse – Class RK1 – 400A – 600VAC/600VDC – Time-Delay Blade Fuse (Amp-Trap 2000® SmartSpot®)
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The Mersen A6D400R is a Class RK1 time-delay fuse designed for reliable overcurrent protection in industrial and commercial power distribution systems. Rated at 400 Amps, this Amp-Trap 2000® fuse provides controlled time-delay characteristics, allowing it to withstand temporary overloads while safely interrupting dangerous fault currents. With 600VAC and 600VDC voltage ratings, it is suitable for both AC and DC electrical systems requiring robust and coordinated protection. The SmartSpot® indicator enhances maintenance efficiency by providing a clear visual indication of a blown fuse condition.
Voltage and Rating
- Current Rating: 400 Amps
- Voltage Rating: 600VAC / 600VDC
- Frequency: 50/60 Hz
- Fuse Class: Class RK1
- Fuse Type: Time-Delay (Slow-Acting)
Key Specifications
- Product Type: Industrial Time-Delay Fuse
- Series: Amp-Trap 2000® A6D-R
- Part Number: A6D400R
- Manufacturer: Mersen
- Mounting Style: Blade
- Response Type: Time-Delay (with controlled overload tolerance)
- Indicator: SmartSpot® blown-fuse indicator
Technical Specifications
- Protection Type: Overcurrent and short-circuit protection for industrial circuits
- Application Suitability: Motor circuits, transformers, feeders, and general power distribution
- Coordination Type: Selective coordination with downstream protection devices
- Construction Features: High interrupting capacity, dual-element time-delay design, and low peak let-through current
- System Integration: Suitable for AC and DC distribution systems up to 600V
Standards and Approvals
- UL Listed
- CSA Certified
- Class RK1 performance standard compliant
- IEC equivalent industrial fuse standards (where applicable)
Product Data
- Manufacturer: Mersen
- Series: Amp-Trap 2000® A6D-R
- Part Number: A6D400R
- EAN/UPC: 782001992255
Applications
- Motor control centers (MCCs)
- Industrial power distribution panels
- Transformer protection
- Feeder circuit protection
- HVAC systems
- General-purpose industrial machinery
- Backup and emergency power systems
- Type Fuses
- Vendor Mersen
- Brand Mersen
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You may return items within 30 days of delivery for a refund.
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