Description
Description
The Mersen A4J200 – 200A, 600V Class J Fast‑Acting Fuse is a high‑performance current‑limiting fuse engineered for demanding industrial power distribution systems. Its fast‑acting element provides rapid interruption of short‑circuit events, protecting sensitive equipment such as drives, switchboards, MCCs, and transformers from damaging fault energy. Built with a durable melamine tube, silver‑plated copper blades, and precision‑engineered internal elements, the A4J200 delivers consistent performance under high fault conditions while maintaining low let‑through energy. As a UL/CSA Class J fuse, it offers a compact footprint, high interrupting rating, and rejection‑style terminals that prevent improper substitution. This fuse is commonly used in industrial control panels, OEM assemblies, and heavy commercial electrical systems requiring reliable, fast‑acting protection at 600V AC.
Features
- 200A, 600V AC Class J fuse for industrial power distribution
- Fast‑acting element provides quick response to short‑circuit faults
- Current‑limiting design reduces let‑through energy to protect sensitive equipment
- Compact Class J footprint with rejection‑style terminals to prevent mis‑application
- High interrupting rating (typically 200kA AC) for demanding industrial systems
- Silver‑plated copper blades for low resistance and reliable conductivity
- Durable melamine tube construction for heat and arc resistance
- UL and CSA listed for code‑compliant installations
- Ideal for MCCs, control panels, switchboards, and transformer protection
- Compatible with Class J fuse blocks and holders
