A3T45 - 45Amp Fuse Description
A3T45 - 45Amp Fuse
The Mersen A3T45 Class T Fast-Acting Fuse is a dependable choice for protecting your electrical systems that need fast, reliable overcurrent protection. Built for applications where equipment protection is critical, this 45A fuse reacts quickly to overloads and short circuits to help reduce damage and downtime. Its compact Class T design makes it especially useful in tight control panels and crowded electrical enclosures where space is limited but performance still matters.
Designed with a durable glass melamine body and copper ferrule terminals, the A3T45 is made to handle demanding industrial and commercial environments. The fast-acting design helps protect sensitive components before faults can escalate, while the high interrupting rating adds another layer of confidence in high-fault-current applications. Permanent catalog markings on the fuse also make maintenance and replacement easier when servicing equipment in the field.
Key Features and Benefits
- Fast-acting fuse helps quickly clear overloads and short circuits
- Compact Class T design saves panel space
- High current-limiting performance helps protect sensitive equipment
- 45 Amp rating for industrial and commercial applications
- Suitable for both AC and DC systems
- Durable glass melamine body supports long service life
- Copper ferrule terminals provide reliable conductivity
- Clip-mount installation for a secure fit
Technical Specifications
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Catalog Number: A3T45
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Series: A3T – Class T – Fast-Acting
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Fuse Class: Class T
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Fuse Type: Fast-Acting
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Amp Rating: 45A
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AC Voltage Rating: 300VAC
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DC Voltage Rating: 160VDC
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Frequency: 50/60 Hz
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Interrupting Rating: 200 kA AC
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Terminal Type: Ferrule
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Terminal Material: Copper
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Mounting Type: Clip Mount
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Body Material: GMG Glass Melamine
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Diameter: 14.2 mm
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Length: 22.4 mm
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Product Weight: 0.0091 kg
Material Compliance and Certifications
- RoHS Compliant
- Designed for UL low-voltage fuse applications
- Rated for AC and DC circuit protection
Where It Works Best
- The A3T45 fuse is commonly used in industrial control panels, switchgear, HVAC systems, motor protection circuits, OEM equipment, and power distribution applications where fast fault clearing and dependable circuit protection are important.
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Specifications
- Width:0.562
- Depth:0.562
- Height:0.875
- Amperes:45
- A.I.C. Rating & Volts:200 kA @ 300 V.AC
- Type:A3T
- Additional Notes:Cartridge Style, Non-Indicating, Very Fast-Acting, current-limiting Class T Fuse
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