AJT100 - 100 Amp Fuse

AJT100 - 100 Amp Fuse

The Mersen AJT100 Amp‑Trap 2000 Class J Time‑Delay Fuse delivers dependable overcurrent protection for demanding electrical environments. Built for industrial panels, motor circuits, transformers, and general power distribution, this 100-amp fuse handles both AC and DC systems with ease. Its time‑delay design lets harmless inrush currents from motors and transformers pass without nuisance blowing, while its smaller size compared to traditional fuses helps maximize valuable space in your control panels and load centers. Easy to install and easy to diagnose thanks to a built‑in visual SmartSpot indicator, the AJT100 is engineered to keep your systems running smoothly and your maintenance time to a minimum.

Key Features and Benefits

• Time‑Delay Operation: Helps reduce unnecessary outages by tolerating short inrush currents common with motor and transformer starts.
• SmartSpot Indicator: A clear, visible indicator instantly shows when the fuse has blown—no tools needed for inspection.
• High Interrupting Capacity: With a strong interrupting rating, it safely clears faults without stressing surrounding equipment.
• Space‑Saving Design: Smaller than traditional 600 VAC Class RK fuses, so you can fit more protection into tight panel spaces.
• Current‑Limiting Performance: Limits peak let‑through current, improving safety and protecting sensitive components downstream.
• Durable Construction: Engineered with a sturdy fiberglass body and tin‑plated copper terminals for long life in industrial settings.

Technical Specifications

• Voltage Rating: 600 VAC / 400 VDC
• Current Rating: 100 A
• Frequency: 50/60 Hz
• Interrupting Rating: 200 kA (AC), 100 kA (DC)
• Fuse Class: Class J
• Characteristic: Time‑Delay
• Mounting: Clip or Bolted
• Terminal Type: Blade
• Body Material: Fiberglass
• Dimensions: Length 117.6 mm; Diameter 27 mm
• Weight: 0.1093 kg

Material Compliance and Certifications

• ROHS Compliant: Yes
• UL Listed: Meets UL 248‑8 standards
• CSA Certified: Conforms to C22.2 No. 248.8
• IEC Compliance: Meets IEC 60269‑2‑1 requirements

Where It Works Best

• This fuse is ideal for protecting motor circuits, main and feeder circuits, branch circuits, lighting and heating systems, transformers, control panels, circuit breaker backup, bus ducts, and load centers. Whether you’re designing new electrical distribution equipment or upgrading existing systems, the AJT100 provides dependable protection you can count on.