AJT70 - Mersen - Time Delay Fuse

Description:

The Mersen AJT70 Time Delay Fuse is used in industrial electrical protection systems to provide overcurrent and short-circuit protection while allowing temporary inrush currents during motor startup and equipment energization. Commonly installed in motor control centers, control panels, HVAC equipment, transformers, and industrial machinery requiring reliable circuit protection. Maintenance teams and system integrators use this part for replacement, retrofit, and expansion of electrical protection systems to maintain safe and dependable operation.

Applications:

The Mersen AJT70 Time Delay Fuse is used in industrial power distribution equipment, motor circuits, automation systems, and electrical control panels. Its time-delay design helps prevent nuisance opening caused by temporary startup currents while maintaining protection against overload and fault conditions.

Technical Specifications:

• Manufacturer Part Number (MPN): AJT70
• Brand: Mersen
• Product Type: Time Delay Fuse
• Series: AJT Class J
• Fuse Type: Time Delay / Dual-Element Fuse
• Current Rating: 70 A
• AC Voltage Rating: 600 VAC
• Class: Class J
• Interrupting Rating: 200 kA RMS Symmetrical
• Body Style: Cartridge Fuse
• Time Delay: Yes
• Mounting Type: Fuse Holder / Fuse Block Mounted
• Application: Industrial Circuit Protection
• Function: Overcurrent and Short-Circuit Protection
• Suitable For: Motor Circuits, Transformers, and Control Panels

Common Replacements:

• Bussmann LPJ-70SP Fuse
• Littelfuse JTD70 Fuse
• Mersen A6D70R Fuse