Description
The Mersen AJT200 Class J time-delay fuse is designed to offer high-level protection for electrical circuits, including motor and transformer applications. Its compact design and advanced technology make it a versatile choice for main, feeder, and branch circuits, ensuring robust performance while occupying minimal space.
Key Features
- Visual Indicator: Available in non-indicating form or with a SmartSpot visual blown fuse indicator.
- Time-Delay Characteristics: Ideal for managing motor starts and transformer inrush currents.
- High Interrupting Rating: 300kA interrupting rating, supported by self-certified and UL witnessed tests.
- Current-Limiting: Extremely current-limiting with a low peak let-thru current; among the most current-limiting UL class fuses.
- Arc Flash Energy Reduction: Recommended to help reduce arc flash energy for enhanced safety.
- Compact Design: Requires less mounting space compared to 600VAC Class RK fuses, enabling the use of smaller fuse blocks.
- 2-to-1 Selectivity: Facilitates easy selectivity to avoid nuisance shutdowns.
- Class J Dimensions: Unique dimensions to prevent incorrect replacements.
- High-Visibility Label: Orange label with metal-embossed date and catalog number for easy identification.
- Durable Construction: Fiberglass body with high-grade silica filler for stability and effective arc quenching.
- Optional EI Indicator: Optional EI indicator/switch available for open fuse indication.
Specifications
- Manufacturer Part Number: AJT200
- Voltage Rating (AC): 600 V
- Ampere Rating: 200 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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