Why Choose the Mersen A090574 Fast-Acting Glass Cartridge Fuse?
The Mersen A090574, catalogue reference MI6SF15V3,15, is a compact and reliable fast-acting miniature cartridge fuse designed to protect electrical distribution circuits, industrial equipment and electronic systems against overcurrent and short-circuit faults. As part of the Mersen 3SF IEC miniature fuse series, it responds rapidly when excessive current is detected, helping prevent damage to sensitive components and connected equipment.
Rated at 3.15 A and 150 V AC, the A090574 provides dependable circuit protection in applications with limited start-up or inrush current. Its fast-acting characteristic interrupts abnormal current conditions quickly, reducing the amount of fault energy passed through the protected circuit.
The fuse features a standard 6.35 × 32 mm glass body, making it suitable for installation in compatible fuse clips and holders. Its transparent construction allows straightforward visual inspection of the fuse element, while its compact IEC format supports use in industrial control equipment, power supplies, instrumentation and OEM electrical assemblies.
Key Advantages
- Compact 6.35 × 32 mm miniature cartridge fuse.
- 3.15 A rated current for industrial and electrical circuits.
- 150 V AC rated voltage.
- Fast-acting characteristic provides rapid overcurrent protection.
- 100 A AC breaking capacity.
- Low melting energy helps protect sensitive circuit components.
- Transparent glass body allows visual fuse-element inspection.
- Suitable for standard clips and compatible fuse holders.
Key Features
- Mersen 3SF IEC miniature fuse series.
- 3.15 A rated current.
- 150 V AC rated voltage.
- Fast-acting fuse characteristic.
- 100 A maximum AC breaking capacity.
- 25.6 A²s melting I²t.
- 1.2 W power dissipation at rated current.
- Standard 6.35 × 32 mm cylindrical format.
- Glass insulating body for visual inspection.
- Clip mounting for straightforward installation and replacement.
Rapid Protection for Industrial and Electrical Circuits
Fast-acting fuses such as the Mersen A090574 interrupt excessive current quickly, limiting the electrical and thermal energy passed to connected equipment. This helps protect circuit boards, control components, instrumentation and other devices that may be damaged by even short-duration overcurrent conditions.
The A090574 should be selected according to the normal operating current, supply voltage, prospective short-circuit current and equipment manufacturer’s requirements. Its fast-acting characteristic makes it most suitable for circuits with limited inrush current rather than motors, transformers or capacitive loads that may require time-delay protection.
Typical Applications
- Industrial control and monitoring circuits.
- Electrical distribution equipment.
- Electronic equipment and circuit boards.
- Instrumentation and measuring devices.
- Low-current power supplies.
- Automation and process-control systems.
- OEM electrical and electronic assemblies.
