Mersen R300510 Mersen Industrial Fuses and Fuse Gear

Razz Middle East supplies Mersen industrial fuses, fuse blocks and holders, and related circuit-protection hardware to Saudi plants and panel shops. These are North American-standard fuse classes, so the catalogue number is the specification and must be quoted in full. Every reference is sourced to order and delivered duty-paid, three weeks from order confirmation.

Mersen R300510

This page covers Mersen part number R300510 — Mersen Industrial Fuses and Fuse Gear. Quote the full part number with your enquiry and the item is unambiguous: one part number identifies one exact product variant, including options that are not visible in the description.

About Mersen Industrial Fuses and Fuse Gear

Mersen, previously trading as Ferraz Shawmut and Gould Shawmut, makes fuses to the North American classes and the gear that carries them. The catalogue numbers follow a consistent shape: leading letters identify the class and the operating speed, the digits that follow give the ampere rating, and a trailing suffix marks a body or mounting variant. AJT references are Amp-Trap time-delay Class J fuses, sized to ride through motor inrush. A4J references are Class J fuses of the fast-acting type. A25X references belong to the high-speed square-body semiconductor family, built with a low clearing I2t to protect diodes, thyristors and other power semiconductors that fail faster than a branch-circuit fuse can act. Class J bodies are smaller than the older Class H and RK styles and use a rejection feature, so a holder built for one class will not accept the wrong one. Mersen also supplies fuse blocks and holders, surge-protection devices and thermal-management hardware for power electronics.

Mersen Industrial Fuses and Fuse Gear in Saudi Arabia

North American fuse classes show up in the Kingdom wherever the equipment itself was built to that practice. Packaged skids, drilling and wellsite packages, compressor and pump packages and OEM machinery imported from the United States arrive with Class J and Class CC holders already fitted, and the plant is then committed to those classes for the life of the equipment. That covers a good deal of the Aramco, SABIC and Ma'aden estate at Jubail and Yanbu, along with mining and minerals plant. Semiconductor fuses appear in the rectifier and DC-link sections of drive panels on cement mills and steel lines, and in UPS and battery-charger cubicles. Since Saudi distribution runs at 60 Hz and typically 380/400 V at the motor control centre, the practical check is voltage class rather than frequency: the fuse's rated voltage and interrupting rating must cover the circuit it protects.

Ordering and lead time

Quote the catalogue number exactly as printed on the fuse body, letters, digits and any trailing suffix together. The class, speed, ampere rating and mounting all follow from that string. Two substitutions deserve care. A time-delay fuse and a fast-acting fuse of the same class and rating are not equivalent, and swapping one for the other will either nuisance-trip on motor inrush or fail to protect. A semiconductor fuse cannot be replaced by a branch-circuit fuse of the same rating, because the clearing energy is the whole point of it. Confirm that the holder in the panel accepts the class you are ordering, and order blocks and holders against their own references. Sourced to order, delivered duty-paid, three weeks.

Specifications are taken from the supplier's published catalogue data. Confirm against the manufacturer's current datasheet before ordering.