Schurter Glass Cartridge Fuse 4A Time Delay 5 x 20 mm 250V ac 0034.3123

Schurter 0034.3123 glass cartridge fuse is a time delay fuse rated for 4 amperes and 250 volts alternating current. Its 5 x 20 mm glass body enables easy visual inspection of the fuse element to determine if the fuse has blown. This fuse is part of the Schurter FST series and is designed for primary protection in a variety of electrical and electronic circuits.

The time delay characteristic (T rating) provides anti-surge protection, allowing the fuse to withstand short overcurrent spikes without nuisance blowing. This makes it ideal for applications where temporary current surges occur during startup or transient conditions.

Constructed with glass and protected terminals, the fuse ensures durability and secure installation in panel and board fuse holders standardized for 5 x 20 mm sizes. The fuse’s low breaking capacity limits the fault current it can safely interrupt, making it suitable for circuits with lower expected fault levels.

Operating temperature ranges from -55°C minimum to 125°C maximum, assuring reliable operation under harsh environmental conditions. The fuse complies with EN/IEC standards for electrical safety and quality.

This fuse finds widespread use in industrial automation, electrical panels, consumer electronics, and HVAC systems. It protects devices from overcurrent damage and short circuits by safely interrupting excessive current flow.

Set includes 1 Schurter 4A time delay glass cartridge fuse, 5 x 20 mm (Model 0034.3123). This fuse features a glass body with protected terminals for visual inspection. It provides primary protection in electronic circuits up to 250 volts alternating current.

The 5 x 20 mm size fits standard fuse holders commonly used in panels and boards. Time delay or "T" rating allows the fuse to tolerate short surges without blowing immediately. Its low breaking capacity (LBC) makes it suitable for low fault current applications.

Operating temperature ranges from -55°C to 125°C, ensuring reliability under various conditions. Compliance with EN/IEC standards guarantees quality and safety. Schurter FST series ensures consistent performance in industrial and electronic applications.

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