Enclosures Survive Zone 4 Seismic Events

With reinforced frames and steel corner blocks to survive even severe seismic events, PROLINE-SE modular enclosures are rated for Zone 4 magnitude seismic events based on vibration tests described in the Bellcore GR-63-CORE standard. Fully loaded enclosures were subjected to synthesized seismic waveforms for up to 30 seconds on a table shaker tester. The enclosures have solid slides, a solid back cover and top, and a 10 mm seismic base with cable entry gland plate. The solid door, hinged on the left, has a flush swing handle and a three-point latch system. Heavy-duty 19" rack angles are positioned in the front and rear of the enclosure and are connected with two side grid straps. The enclosure is fully gasketed to maintain NEMA Type 12, IP55 integrity.