RT18-63X 4P DIN Rail Fuse Holder 63A 690V

Large commercial buildings, data centers, industrial HVAC systems, and high-power 4-wire distribution panels require complete fuse protection across all three phases and the neutral simultaneously — and at currents that exceed the capacity of standard 32A holders. The Soltree RT18-63X 4P meets this requirement: four independent 63A fuse positions in a single compact housing, rated at 690V AC and accepting 14x51mm high-breaking-capacity cylindrical fuse links. Unlike the RT18-32X 4P, the 63A rating and larger 14x51mm fuse format are suited to main feeder protection, large HVAC main circuits, and heavy industrial four-wire loads where fault currents can be substantial. Each pole has its own red LED indicator, so even a neutral fuse failure is immediately visible without any test equipment. A tool-free 35mm DIN rail design, screw clamp terminals for cables up to 16mm², and IP20 finger-safe protection complete a solution engineered for demanding large-scale electrical installations. Note: fuse links are sold separately.