Description
The Mersen AJT300/600 is a Class J time-delay fuse designed for high-current applications with a focus on providing reliable and efficient protection. This fuse serves as a permanent solution for reducing current ratings without the need for temporary fuse reducers.
Key Features
- Fuse Reducer Replacement: Designed as a permanent alternative to traditional temporary-use fuse reducers, offering consistent protection levels in a larger body.
- Arc Flash Reduction: Recommended for reducing arc flash energy, enhancing safety and operational efficiency.
- Current-Limiting Performance: Provides extreme current-limiting capabilities to manage low peak let-thru currents effectively.
- Time-Delay Function: Time-delay characteristics help handle motor starting and transformer inrush currents while avoiding nuisance blows.
- Visibility: High-visibility orange label ensures immediate brand recognition.
- Durability: Metal-embossed date and catalog number for traceability and long-lasting identification.
- Construction: Fiberglass body ensures dimensional stability in harsh environments; high-grade silica filler aids in fast arc quenching.
- Optional Indicator: EI indicator/switch available for enhanced visibility of open fuse status.
Specifications
- Manufacturer Part Number: AJT300/600
- Voltage Rating (AC): 600 V
- Ampere Rating: 300 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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