The HR3 series fused disconnect switch combines isolation and overload protection in one compact device, perfect for industrial control panels, motor circuits, and power distribution systems. With a 200A rated current, 3-pole design for 380V AC systems, and integrated fuse protection, it ensures safe operation and quick response to short circuits. IEC 60947-3 certified and featuring a compact 34mm width, the HR3 saves space while delivering robust performance. Ideal for OEM and wholesale projects, this switch is your go-to for reliable electrical protection.
The HR3 series fused disconnect switch operates as a dual-function device combining isolation and circuit protection:
In normal operation, manually closing the handle establishes current flow through the fuse link (NT00/RT16 compatible), which acts as a conductor. When switched to the OFF position, mechanical linkages create a visible isolation gap (complying with IEC 60947-3) for safe maintenance. During short circuits/overloads, the fuse ruptures within milliseconds, forcing contacts to separate via a tripping mechanism—achieving 50kA breaking capacity while maintaining compact 34mm width. Its integrated design eliminates the need for separate isolators and fuses, saving panel space and ensuring fail-safe protection.
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