A4J150 - 150 Amp Class J Fast Acting Fuse

A4J150 - 150 Amp Class J Fast Acting Fuse

The Mersen A4J150 Class J Fast-Acting Fuse is made for your electrical systems that need reliable protection when fault conditions happen unexpectedly. Rated at 150 amps, this fuse responds quickly to overloads and short circuits, helping protect valuable equipment and reduce the chance of costly downtime. Its fast-acting design makes it a solid choice for industrial facilities, commercial buildings, motor circuits, and power distribution equipment where dependable circuit protection is important.

One thing that stands out about the A4J150 is its combination of compact size and high performance. The Class J design also helps you prevent the use of lower-rated replacement fuses, adding another layer of protection for your system.

From manufacturing equipment to HVAC systems and electrical distribution panels, the A4J150 is designed to provide the quick response and consistent performance electricians and maintenance professionals count on every day.

Key Features and Benefits

• Fast-acting fuse: Helps quickly clear overloads and short circuits.
• 150A rating: Suitable for commercial and industrial applications.
• High current-limiting performance: Helps reduce equipment damage.
• Compact Class J design: Saves space in electrical panels.
• Durable glass melamine body: Supports long-term performance.
• Blade terminals: Provide secure installation and conductivity.
• Class J dimensions: Help prevent incorrect fuse replacement.
• Suitable for AC and DC applications: Designed for multiple electrical system requirements.
• High 200 kA interrupting rating: Supports demanding electrical systems.
• Commonly used for power distribution and equipment protection: Designed for dependable circuit protection applications.
  

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A4J150
  
• Series: A4J – Class J – Fast-Acting
  
• Product Type: Fast-Acting Fuse
  
• Fuse Class: Class J
  
• Ampere Rating: 150A
  
• AC Voltage Rating: 600VAC
  
• DC Voltage Rating: 300VDC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 200 kA AC
  
• Terminal Type: Blade
  
• Mounting Type: Clip
  
• Terminal Material: Brass Alloy
  
• Body Material: GMG Glass Melamine
  
• Product Diameter: 41.3 mm
  
• Product Length: 146 mm
  
• Product Weight: 0.342 kg
  
• UPC: 782001960353
  
• RoHS Compliant: Yes
  

Material Compliance and Certifications

• RoHS Compliant: Designed to meet RoHS material compliance requirements.
• Low-voltage UL/CSA fuse applications: Designed for low-voltage UL/CSA fuse applications.
• Rated for AC and DC electrical systems: Suitable for both AC and DC electrical system applications.
  

Where It Works Best

• The A4J150 fuse is commonly used in applications where fast fault protection is needed to help protect equipment and maintain system reliability, including industrial control panels, commercial power distribution systems, motor and drive circuits, HVAC equipment, manufacturing and automation systems, UPS and backup power equipment, and electrical systems requiring Class J fuse protection.