RS PRO 4A T Glass Cartridge Fuse 5 x 20 mm 250V AC Time Lag RS PRO 177-8021

RS PRO 177-8021 glass cartridge fuse is a 4 ampere, 250V AC rated time lag (T speed) fuse with a 5 x 20 mm cartridge dimension designed to protect electrical circuits and devices from overcurrent and short circuits. It uses a glass body to allow easy visual confirmation of fuse condition.

This fuse features a slow acting characteristic allowing it to withstand short current surges or spikes without immediately blowing, making it suitable for sensitive or inductive load protection where temporary current spikes can occur.

The fuse size measures approximately 20 mm in length and 5.2 mm in diameter, fitting standard 5x20 mm fuse holders commonly found in electrical panels and board protection setups. It is rated for a maximum operating temperature of 125°C and a minimum operating temperature of -55°C, making it apt for various industrial and commercial environments.

Certified to multiple international standards including CSA, KTL, PSE GTE, RoHS, and UL, ensuring compliance with safety and quality requirements. The fuse body is transparent glass for clear visibility of the fuse element condition.

Time lag (T) rating provides anti-surge protection by tolerating short-duration current spikes. Low breaking capacity suitable for specific safety applications requiring limited fault current interruption. Compatible with diverse applications such as motors, HVAC equipment, refrigerators, and pumps.

Widely used in industrial, commercial, residential, and automotive sectors for circuit protection. RS PRO series fuse, manufactured in Taiwan, Province Of China.

This glass Cartridge Fuse is a reliable component for ensuring circuit safety and preventing damage to electrical equipment from excessive currents, supporting long-lasting service and ease of replacement once blown.

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