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The Mersen A4J100 is a Class J fast-acting fuse with a voltage rating of 600 volts alternating current and 300 volts direct current. Its amperage rating is 100 amps, making it suitable for various applications requiring reliable current limiting. This fuse features dimensions of one and one-eighth inches in diameter by four and four-eighths inches in length.
This fuse is designed for use in capacitors, load centers, panelboards, switchboards, feeder circuits, and circuit breakers. Its unique design prevents substitution with lower-rated fuses, ensuring safety and reliability in electrical systems.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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