Description
The Mersen AJT2-1/2 Class J time-delay fuse is designed for high-performance protection in compact applications. It offers advanced technology for IEC Type 2 No Damage protection across main, feeder, and branch circuits. This fuse is ideal for handling motor starting and transformer inrush currents while requiring only half the mounting space compared to traditional 600VAC Class RK fuses.
Key Features
- Visual Indicator: Non-indicating or SmartSpot visual blown fuse indicator for easy detection.
- Time-Delay: Suitable for motor starting and handling transformer inrush currents.
- High Interrupting Rating: 300kA interrupting rating with self-certified, UL witnessed tests.
- Current-Limiting: Extremely current-limiting for low peak let-thru current, making it the most current-limiting UL class fuse.
- Arc Flash Energy Reduction: Recommended for enhancing arc flash energy safety.
- Compact Design: Requires less mounting space and allows for more economical fuse blocks.
- 2-to-1 Selectivity: Provides easy selectivity to prevent nuisance shutdowns.
- Distinct Dimensions: Unique Class J dimensions to prevent replacement errors.
- Identification: High-visibility orange label and metal-embossed date/catalog number for traceability.
- Durable Construction: Fiberglass body with high-grade silica filler ensures stability and rapid arc quenching.
- Optional EI Indicator: Available with EI indicator/switch for open fuse indication.
Specifications
- Manufacturer Part Number: AJT2-1/2
- Voltage Rating (AC): 600 V
- Ampere Rating: 2.5 A
- Fuse Class: Class J
- Interrupting Rating: 300kA
- 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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