FUSE 406X1 375 0 440A 1000V FAST - Fluke

The Fluke 943121 FUSE 406X1 375 0 440A 1000V FAST is a vital component for maintaining the integrity of professional test and measurement equipment. This high-energy, fast-acting fuse is engineered to provide precise overcurrent protection, safeguarding sensitive internal circuitry in demanding electrical, industrial, and automotive diagnostic environments. Ensure uninterrupted instrument uptime and reliable measurements with this essential protective device.

Key Features

• Robust High-Voltage Protection: Rated for 1000 V, this fuse provides reliable protection for equipment operating in modern high-energy electrical and electronic systems, including EV/HEV diagnostics and industrial controls.
• Rapid Overcurrent Response: Its fast-acting design quickly interrupts current on overload, minimizing potential damage to sensitive meters and components from sudden electrical surges or short circuits.
• Optimized for Fluke Instruments: Designed and manufactured to meet stringent Fluke performance and safety standards, this fuse is an ideal replacement for a wide range of Fluke digital multimeters and other test equipment. It is compatible with models such as Fluke 175/177/179, 187/189, and many from the Fluke 20, 70, and 80 Series III and IV digital multimeters.
• Consistent 440 mA Rating: Provides dependable, predictable low-current circuit safeguarding essential for maintaining instrument integrity and measurement accuracy.
• Durable, Sand-Filled Construction: Built for professional use, its sand-filled ceramic body helps to quickly extinguish arcs and absorb shock energy during a short circuit, keeping the energy contained within the fuse enclosure and enhancing user safety.

Applications

The Fluke 943121 fuse is an essential component for electrical technicians, automotive diagnosticians, and industrial maintenance professionals who rely on accurate and protected test equipment. It is commonly used to safeguard:

• Digital multimeters and portable test instruments utilized in vehicle electrical diagnosis, including hybrid and electric vehicle (EV/HEV) systems.
• Sensitive electronic circuits within high-voltage test benches and calibration setups.
• Lab, bench, and field equipment requiring fast-acting, high-voltage overcurrent protection for safe and repeatable measurements.

Specifications

• Manufacturer: Fluke
• Model Number: 943121
• Current Rating: 440 mA
• Voltage Rating: 1000 V
• Fuse Type: Fast-acting
• Dimensions: Approximately 2 x 0.4 x 0.4 in (10 x 35 mm)
• Weight: 0.01 lb