LITTELFUSE 229P/230P Slo-Blo fuses are designed for reliable overcurrent protection in a variety of applications, particularly within the telecom and industrial sectors. Available in both cartridge and axial lead configurations, these fuses offer versatility in circuit design. Their Slo-Blo characteristic provides a time delay, allowing temporary overloads without interrupting the circuit. They meet demanding requirements, including UL 1459 for telephone equipment, and are characterized for surge withstand capabilities. The indicating feature provides visual confirmation of fuse operation, simplifying troubleshooting and maintenance. Constructed with a glass body and nickel-plated brass fuse caps, these fuses are built for durability and performance in challenging environments.
Ampere Opening Rating Time: 100% 4 hours, Minimum 135% 1 hour, Maximum 200% 3 seconds, Minimum 20 seconds, Maximum
Agency Approvals: Listed by Underwriters Laboratories and Certified by CSA through 3.5 amperes. Recognized under the Components Program of Underwriters Laboratories from 4 through 7 amperes. 1 through 7 amperes approved by METI.
Agency File Numbers: UL E10480, CSA LR 29862
Interrupting Ratings (0.25–3.5A): 10,000 amperes at 125VAC
Interrupting Ratings (4–7A): 400 amperes at 125VAC
Interrupting Ratings (0.25–1A): 35 amperes at 250VAC
Interrupting Ratings (1.25–3.5A): 100 amperes at 250VAC
Packaging Options (230P Series): Tape and Reel per EIA-296 (add DRTIP suffix for 1500 pieces per reel)