Description
The Mersen AJT250/600 is a Class J time-delay fuse designed to provide reliable protection in various high-current applications. This fuse acts as a permanent solution for reducing current ratings without the need for temporary fuse reducers, maintaining the same trusted protection levels in a larger body.
Key Features
- Permanent Solution: Replaces traditional temporary-use fuse reducers with a more reliable and permanent option.
- Arc Flash Energy Reduction: Recommended for environments where arc flash energy reduction is crucial.
- Superior Current-Limiting: Extremely current-limiting with a very low peak let-thru current, making it one of the most current-limiting fuses available.
- Time-Delay Characteristics: Provides time-delay protection to handle motor starting and transformer inrush currents.
- High Visibility: Features a high-visibility orange label for instant recognition and a metal-embossed date and catalog number for traceability.
- Durable Construction: Made with a fiberglass body and high-grade silica filler for effective arc quenching and dimensional stability in harsh conditions.
- Optional Indicators: Includes an optional EI indicator/switch for enhanced open fuse indication.
Specifications
- Manufacturer Part Number: AJT250/600
- Voltage Rating (AC): 600 V
- Ampere Rating: 250 A
- Fuse Class: Class J
- Interrupting Rating: 300kA
- Body Material: Fiberglass with high-grade silica filler
- Standards Approvals:
- UL Listed to standard 248-8
- IEC 269-2-1
- Applications:
- Motor circuits
- Mains
- Feeders
- Branch circuits
- Lighting, heating, and general loads
- Transformers
- Control panels
- Circuit breaker back-up
- Bus duct
- Load centers
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