A2K50R - 50Amp Fuse

A2K50R - 50Amp Fuse

The Mersen A2K50R Amp-Trap® Class RK1 fast-acting fuse is designed to help protect electrical systems from damaging overloads and short circuits before they become bigger problems. Built for commercial and industrial applications, this 50 amp fuse delivers fast response times and current-limiting protection in systems where high fault currents are present. Its reliable performance makes it a strong choice for protecting branch circuits, feeders, motor controls, and other critical electrical equipment.

Rated for both 250VAC and 250VDC applications, the A2K50R features a ferrule design with tin-plated copper terminals for dependable electrical contact and secure installation. The durable PolyTube body helps the fuse stand up to demanding operating conditions often found in industrial facilities, manufacturing environments, and commercial buildings. With a high interrupting capacity of 200 kA, this Class RK1 fuse is built to help reduce equipment damage and improve overall system protection when fault conditions occur.

Whether you are maintaining existing equipment or replacing blown fuses in a power distribution system, the Mersen A2K50R offers the combination of speed, protection, and reliability professionals expect from Amp-Trap® fuses.

Key Features and Benefits

• Fast-acting Class RK1 fuse for quick fault interruption
• 50 amp rating for branch circuit and feeder protection
• Current-limiting design helps reduce damage during short circuits
• Rated for both 250VAC and 250VDC applications
• High 200 kA interrupting rating for demanding electrical systems
• Ferrule terminals allow secure clip mounting installation
• Tin-plated copper contacts provide dependable conductivity
• Compact design works well in control panels and distribution equipment
• Suitable for industrial, commercial, and OEM applications
• ROHS compliant
  

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A2K50R
  
• Product Series: A2K-R – Class RK1 – Fast-Acting
  
• Fuse Class: Class RK1
  
• Ampere Rating: 50A
  
• Rated AC Voltage: 250VAC
  
• Rated DC Voltage: 250VDC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 200 kA
  
• Fuse Type: Fast-Acting
  
• Terminal Type: Ferrule
  
• Mounting Style: Clip
  
• Terminal Material: Tin-Plated Copper
  
• Body Material: PolyTube
  
• Product Diameter: 20.6 mm
  
• Product Length: 76.2 mm
  
• Product Weight: 0.0549 kg
  
• Compliance: ROHS Compliant
  

Material Compliance and Certifications

• The Mersen A2K50R fuse is ROHS compliant and manufactured using quality insulating and conductive materials for dependable long-term performance. Its PolyTube body and tin-plated copper terminals are designed for consistent operation in commercial and industrial electrical systems.
  

Where It Works Best

• The A2K50R is commonly used in industrial machinery, HVAC equipment, switchboards, panelboards, motor control centers, and commercial power distribution systems. It is especially useful in applications where fast fault clearing and high interrupting capacity are important for protecting sensitive electrical equipment and minimizing downtime.