0HAAL4000-01

The Bel Fuse 0HAAL4000‑01 is a sub‑miniature, time‑lag (slow‑blow) radial‑lead fuse designed to provide reliable overcurrent protection in compact electronic systems operating at 250V AC. As part of the 0HAAL series, it is fully compliant with IEC 60127‑3, Sheet 4, ensuring predictable delayed‑action performance ideal for circuits that experience high inrush currents. Built with a UL 94‑V0 thermoplastic housing and matte‑tin plated copper leads, the fuse offers robust mechanical integrity suitable for demanding consumer and industrial environments. It also meets stringent MIL‑STD‑202G environmental tests, including shock, vibration, solder‑heat resistance, salt spray, moisture exposure, and thermal shock—to ensure consistent, long‑term performance.

• Rated current: 4A
• Rated voltage: 250V AC
• Typical cold resistance: 0.014Ω
• Voltage drop @ 100% In: 0.10V (max.)
• Nominal melting I²t (<lt/>10ms): 96A²s
• Nominal melting I²t @ 10 In: 98A²s
• Interrupting rating: 250V AC @ 35A