The device in the image is a Total Power Protection Solutions system manufactured by Northern Technologies, Inc.. This unit serves as both a main electrical disconnect and a high-performance Transient Voltage Surge Suppressor (TVSS).
(REQUIRES INTERIOR REPLACEMENT)
Key Features & Specifications
Function: It is designed to protect sensitive industrial or commercial electronic equipment from external lightning strikes and internal power transients.
Main AC Power Disconnect: The upper section features a heavy-duty disconnect switch labeled "Suitable for use as service equipment."
Surge Suppression: The middle section houses the surge suppression components with LED diagnostic indicators for real-time monitoring of each power line (Line 1 Primary/Secondary, Line 2 Primary/Secondary).
Enclosure: Based on its size and configuration, these units are typically housed in NEMA rated (often 3R or 4) heavy-gauge metal cabinets designed for either indoor or outdoor floor mounting