Fuse Amp-Trap 2000® 250V 400A Time-Delay Class RK1 A2D Series Smart-Spot

The Fuse Amp-Trap 2000® A2D-R series by Mersen is a time-delay, Class RK1 fuse designed for electrical distributors and switchgear suppliers to provide IEC Type 2 "no damage" protection. It is suitable for motors, safety switches, transformers, branch circuit protection, disconnects, control panels, and all general-purpose circuits. This fuse features a SmartSpot visual indicator for quick blown fuse identification and supports both AC and DC applications up to 250V. It offers current-limiting protection with a high interrupt rating to protect motor starters, switches, and circuit components while accommodating motor inrush currents.

Specifications

• Amperage Rating: 400 A
• Voltage Rating: 250VAC/DC
• Interrupt Rating: 200 kA
• Fuse Class: Class RK1
• Dimensions (L x W x H): 8.63 in x 2.06 in x 2.06 in
• Diameter: 2.06 inches
• Mounting Type: Clip
• Connection Type: Blade
• Insulation Material: PolyTube
• Product Weight: 1.64 lbs
• Manufacturer Part Number: A2D400R

Features

• SmartSpot solid-state visual blown fuse indicator
• Time-delay for motor starting and transformer inrush currents without nuisance opening
• Dual rated for 600VAC and 600VDC applications
• Self-certified 300kA interrupting rating, UL witnessed
• Extremely current-limiting for low peak let-thru current
• Recommended for arc flash energy reduction
• Easy 2-to-1 selectivity to prevent nuisance shutdowns and blackouts
• Rejection-style design to prevent replacement errors when used with recommended fuse blocks
• High-visibility orange label for instant identification
• Reduces inventory by replacing Class RK5, K, and H fuses
• Fiberglass body for dimensional stability in harsh industrial environments
• Metal-embossed date and catalog number for traceability

Downloads & Links

• Spec Sheet FR
• Spec Sheet
• Drawings