LITTELFUSE

The PSR Series are very-fast-acting semiconductor fuses with threaded flush-end square bodies, designed for high-current AC/DC applications up to 1,300 V AC and 1,000 V DC, with ratings from 63 A to 700 A. They are used to protect power semiconductors like IGBTs and diodes. The KLKD Series are fast-acting cylindrical midget fuses rated up to 600 V AC/DC and 8 A, with a 13/32 in x 1 1/2 in body. They are suited for general-purpose overcurrent protection in control circuits and equipment. The PSR series offers higher voltage and current handling, while the KLKD series is more compact for lower-power circuits.

Yes, the SPF Series solar fuses are designed for overcurrent protection in photovoltaic (PV) systems. They are fast-acting cylindrical fuses rated at 20 A and 1,000 V DC, suitable for string-level protection in both residential and commercial installations. Their DC voltage rating matches typical PV array voltages, and they are built to withstand the environmental conditions common in solar applications. However, always verify the specific system voltage and current requirements against the fuse's ratings to ensure proper coordination.

The MIDI® 498 Series fuses are two-bolt-hole, bolt-on time-delay fuses rated at 30 A and 32 V DC. They are designed for direct mounting to a bus bar or fuse block using two bolts, providing a secure connection in high-vibration environments like automotive electrical systems. The bolt-on design simplifies installation and replacement, and the time-delay characteristic allows them to handle inrush currents from motors or capacitive loads without nuisance tripping.

The BLF Series fuses are non-indicating, meaning they do not have a visual indicator to show when the fuse has blown. They are fast-acting cylindrical midget fuses rated at 5 A and 250 V AC, with dimensions of 13/32 in x 1 1/2 in. Non-indicating fuses are typically used in applications where the fuse is not easily visible or where a separate monitoring system is in place. For applications requiring visual indication, Littelfuse offers other series with built-in indicators.

The Littelfuse PSR032FS1000Z is a very-fast-acting semiconductor fuse from the PSR Series, rated at 1 kA, 700 V AC, and 600 V DC. It is designed for AC/DC circuits and is suitable for protecting power semiconductors in industrial equipment such as drives, inverters, and power supplies. The dual voltage rating allows it to be used in both AC and DC systems, but the DC voltage rating is lower than the AC rating due to the different arc-extinguishing characteristics.

Yes — 3G Electric (S) Pte. Ltd. supplies LITTELFUSE products. We stock the LITTELFUSE catalog and supply genuine factory-original products with full manufacturer warranty and technical support.