Mersen A2D-R Class RK1 Time-Delay Fuse with SmartSpot Indication

Mersen A2D-R Class RK1 Time-Delay Fuse with SmartSpot Indication

The Mersen A2D-R is a Class RK1 time-delay fuse family rated 250VAC/250VDC, part of Mersen's Amp-Trap 2000 series and engineered for reliable overcurrent protection in demanding electrical systems. Each fuse features SmartSpot® visual indication for fast identification of a blown fuse, a 200 kA breaking capacity for severe fault conditions, and tin-plated copper blade terminals for secure clip-mount connections. The time-delay characteristic allows temporary overloads while protecting against sustained overcurrent conditions, making this family well suited to motor and other inductive-load applications across commercial and industrial systems.

Key Features

• Fuse Class: Class RK1 performance delivers superior current-limiting characteristics and reduced let-through energy.
• Speed Characteristic: Time-Delay design allows temporary overloads while protecting against sustained overcurrent, ideal for motor and inductive-load applications.
• Dual Voltage Rating: Rated 250VAC/250VDC for versatile AC and DC application compatibility with consistent protection performance.
• Breaking Capacity: 200 kA AC maximum breaking capacity ensures reliable fault-current interruption under severe conditions.
• Indication System: SmartSpot® visual indication provides immediate confirmation of fuse status for faster maintenance.
• Connection Terminal: Blade-type, tin-plated copper terminals with clip mounting provide secure connections and easy installation.
• Body Material: PolyTube insulating material supports durable, long-term construction.

Certifications & Compliance

• RoHS Compliant

Technical Specifications

• Fuse Class: RK1
• Voltage Rating: 250VAC/250VDC
• Breaking Capacity: 200 kA
• Indication System Type: SmartSpot®
• RoHS Compliant: Yes

Typical Applications

• Motor Control Centers and Industrial Equipment Protection
• Commercial HVAC Systems and Building Services
• Power Distribution Panels and Switchgear
• Manufacturing and Process Control Equipment
• Renewable Energy and Battery Storage Systems
• Critical Infrastructure and Data Centers

Why Mersen?

Mersen A2D-R Class RK1 fuses combine proven current-limiting technology with SmartSpot® visual indication for enhanced system reliability and faster maintenance. The PolyTube insulating material and tin-plated copper blade terminals support long-term performance, while RoHS compliance reflects a commitment to environmental responsibility. Choose Mersen for code-compliant overcurrent protection in critical electrical systems.