Internal-Mount SPDs
Available85 products
Internal-mount surge protective devices (SPDs) install inside an electrical panel and are used to detect and limit power surges that can damage equipment. They save space, so no outside wall space is required for wall mounting. These SPDs can protect specific lines and equipment, equipment fed from the panelboard location, or the whole panel.
Square D QO, HOM, I-Line and NQ Internal Panel-Mount SPDs
These SPDs install in Square D QO, HOM, I-Line, and NQ panelboards and load centers and are used for residential and light commercial applications. These SPDs detect and limit power surges to protect equipment from damage.
For HOM Load Centers
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For I-Line Panelboards
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For QO Load Centers
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DIN Rail Internal-Mount SPDs
These SPDs install on DIN rails in an electrical panel and are used for control panels, factory automation installation, programmable logic controllers, and other industrial applications. These SPDs detect and limit power surges caused by lightning or turning on machinery to protect equipment from damage.
Number of Poles: 1; Single Phase
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Number of Poles: 2; Single Phase
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Number of Poles: 2; Two Phase
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Number of Poles: 3; Single Phase
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Number of Poles: 3; Three Phase
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Number of Poles: 4; Three Phase
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Internal Surface-Mount SPDs
Internal surface-mount SPDs install on the flat surface of an electrical panel and are used for branch and control panels, factory automation installation, industrial and machine tools, and other industrial applications. These SPDs detect and limit power surges to protect equipment from damage.
Number of Poles: 1; Single Phase
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Number of Poles: 2; Single Phase
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DIN Rail Internal-Mount Data & Signal SPDs
These SPDs install on DIN rail in electrical panels and are used for telephonic equipment, IT devices, BUS systems, and other data and signal applications. These SPDs detect and limit power surges to protect equipment from damage.
Number of Poles: 1; Single Phase
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Number of Poles: 4; Single Phase
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DIN Rail Internal-Mount SPD Replacement Modules
These are direct replacement surge modules for Bussmann DIN rail internal-mount SPDs. They're the portion of the SPD that limits power surges. They snap into the SPD base and can be removed by pressing the release buttons, so they don't require installation or removal tools. The module and base have integrated mechanical coding that prevents the wrong module from being installed.
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