Why Choose the Mersen ATM3/4 Fast-Acting Fuse?
The Mersen ATM3/4 is a compact fast-acting midget fuse designed to provide supplementary overcurrent protection for industrial control circuits, instrumentation, power supplies and sensitive electrical equipment. As part of the established Mersen Amp-Trap® ATM series, it responds rapidly to overloads and short circuits, helping protect conductors and connected components from damaging fault currents.
Rated at 0.75 A (3/4 A) and up to 600 V AC/DC, the ATM3/4 is suitable for low-current industrial and commercial electrical systems. Its fast-acting operating characteristic makes it particularly appropriate for circuits requiring prompt fault clearance rather than prolonged tolerance of motor, transformer or capacitor inrush currents.
The ATM3/4 uses a compact cylindrical ferrule construction in the standard 10 × 38 mm midget fuse format. Its current-limiting design and high interrupting capacity make it a practical choice for control-panel builders, OEM manufacturers, automation engineers and industrial maintenance professionals. ATM-series fuses are intended for supplementary protection and should be applied within the ratings of the fuse, holder and protected circuit.
Key Advantages
- Compact fast-acting midget fuse for supplementary circuit protection.
- 0.75 A current rating for sensitive control and instrumentation circuits.
- 600 V AC/DC voltage rating for demanding electrical systems.
- Rapid response helps reduce damage caused by overloads and short circuits.
- Current-limiting construction helps restrict damaging fault energy.
- Standard 10 × 38 mm format supports space-efficient installation.
Key Features
- Mersen Amp-Trap® ATM series.
- 0.75 A rated current.
- 600 V AC rated voltage.
- 600 V DC rated voltage.
- Fast-acting operating characteristic.
- High interrupting capacity for industrial fault protection.
- Current-limiting cylindrical cartridge construction.
- Ferrule terminals for compatible midget fuse holders.
Fast Protection for Sensitive Electrical Circuits
The Mersen ATM3/4 is engineered to interrupt excessive current rapidly, helping protect sensitive electrical equipment before prolonged fault current can generate damaging heat or mechanical stress. This fast response is well suited to low-current circuits containing components that require prompt isolation during an overload or short circuit.
Its current-limiting construction helps restrict the peak current and energy permitted to pass during a fault. This can reduce equipment damage, support reliable operation and minimise disruption within industrial control, instrumentation and automation systems.
Typical Applications
- Industrial control panels and auxiliary circuits.
- Instrumentation and measurement equipment.
- Electronic control circuits.
- Power supplies and control equipment.
- Automation systems and OEM machinery.
- Commercial and industrial electrical equipment.
