Description
The Mersen AJT70 is a Class J time-delay fuse designed for reliable protection in electrical systems. It combines compact dimensions with high performance, making it suitable for various applications where space and efficiency are critical.
Key Features
- SmartSpot Indicator: Includes a SmartSpot visual indicator to easily identify a blown fuse.
- Time-Delay Characteristics: Designed with time-delay features to handle motor and transformer inrush currents, preventing unnecessary interruptions.
- High Interrupting Rating: Provides up to 300kA interrupting rating, confirmed by UL witnessed tests.
- Current-Limiting: Extremely effective at limiting current to reduce peak let-thru currents and potential damage.
- Arc Flash Energy Reduction: Recommended for arc flash energy reduction to enhance safety.
- Compact Design: Requires less mounting space compared to traditional fuses, allowing for more compact and economical fuse blocks.
- Selectivity: Features 2-to-1 selectivity to avoid nuisance shutdowns and ensure reliable operation.
- Unique Dimensions: Class J dimensions help prevent incorrect replacements.
- High-Visibility Label: Equipped with a bright orange label for immediate brand recognition.
- Durable Construction: Made with a fiberglass body and high-grade silica filler for durability and effective arc quenching.
- Traceability: Includes metal-embossed date and catalog number for traceability and identification.
- Optional Indicator/Switch: Available EI indicator/switch mount for improved fuse status indication.
Specifications
- Manufacturer Part Number: AJT70
- Voltage Rating (AC): 600 V
- Ampere Rating: 70 A
- Fuse Class: Class J
- Body Material: Fiberglass with high-grade silica filler
- Standards Approvals:
- UL listed to standard 248-8 File E2137
- DC listed to UL standard 248
- CSA certified to standard C22.2 No. 248.8
- IEC 60269-2-1
- 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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