A4J200 - 200 Amp Fuse

A4J200 - 200 Amp Fuse

The Mersen A4J200 Amp-Trap® Class J Fast-Acting Fuse is designed for electrical systems that need fast, dependable protection when fault conditions happen. Rated at 200 Amps, this Class J fuse helps protect your equipment, circuits, and power distribution systems from overloads and short circuits before serious damage occurs. Its fast-acting design allows it to clear fault currents quickly, making it a good fit for systems that include sensitive electrical equipment or high-demand industrial loads.

Built as part of Mersen’s trusted Amp-Trap® A4J series, the A4J200 delivers strong current-limiting protection in a compact design that works well in commercial and industrial environments. The Class J dimensions also help you prevent lower-rated fuses from being installed by mistake, which can help improve overall system safety. With blade-style terminals, clip mounting, and a durable GMG insulating body, this fuse is made for reliable day-to-day operation in demanding electrical applications.

Key Features and Benefits

• 200 Amp Class J fast-acting fuse: Designed for dependable overcurrent protection.
• Quick response during overloads and short circuits: Helps clear fault currents quickly.
• Current-limiting protection: Helps reduce equipment damage.
• Rated for 600VAC and 300VDC systems: Suitable for AC and DC applications.
• High 200 kA interrupting rating: Designed for demanding fault conditions.
• Compact Class J design: Helps prevent incorrect fuse replacement.
• Blade terminals: Support secure clip mounting.
• Suitable for AC and DC applications: Designed for commercial and industrial electrical systems.
• Commercial and industrial compatibility: Works well in demanding electrical environments.
• Improves equipment protection and system reliability: Supports dependable electrical system performance.
  

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A4J200
  
• Series: Amp-Trap® A4J
  
• Fuse Class: Class J
  
• Fuse Type: Fast-Acting
  
• Ampere Rating: 200A
  
• AC Voltage Rating: 600VAC
  
• DC Voltage Rating: 300VDC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 200 kA AC
  
• Terminal Type: Blade
  
• Mounting: Clip
  
• Terminal Material: Brass Alloy
  
• Body Material: GMG
  
• Diameter: 41.3 mm
  
• Length: 146 mm
  
• Product Weight: 0.342 kg
  
• Product Group: Low Voltage UL/CSA Fuses
  
• Compliance: RoHS Compliant
  

Material Compliance and Certifications

• RoHS Compliant: The Mersen A4J200 fuse is RoHS compliant, supporting current environmental standards for electrical components used in industrial and commercial systems.
• UL and CSA Applications: It is manufactured for low-voltage UL and CSA fuse applications that require dependable overcurrent protection.
  

Where It Works Best

• The A4J200 works well in applications where fast fault clearing and reliable circuit protection are important, including industrial control panels, power distribution equipment, manufacturing machinery, HVAC and refrigeration systems, motor protection circuits, commercial electrical systems, switchboards and panelboards, OEM equipment, and industrial automation systems. Its fast-acting performance makes it especially useful in systems where protecting electrical equipment from overloads and high fault currents is a priority.