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Figure 2aFigure 2bTEST 4: Staged test protected by circuit breaker with short time delay (not a current-limiting overcurrent protective device). Short time-delay intentionally delayed opening for sixcycles (0.1 second). Note: Unexpectedly, there was an additional fault in the wireway and the blast caused the cover to hit the mannequin in the head. Analysis results in incidentenergy of 5.8 cal/cm 2 and arc flash protection boundary of 47 in. per IEEE 1584 (basic equations).Figure 3aFigure 3bTEST 3: Staged test protected by KRP-C-601SP Low-Peak current-limiting fuses (Class L). These fuses were in their current-limiting range and cleared in less than a 1⁄2 cycle (0.008 s).Analysis results in incident energy of 1.58 cal/cm 2 and arc flash protection boundary of 21 in. per IEEE 1584 (simplified fuse equations).New look. Same great performance.Telemecanique and Merlin Gerin products are changing over to new,more environmentally friendly and energy efficient Schneider Electricpackaging and logo marks. A new look, but:• Same part numbers.• Same dimensions and high-performance design.• Same interchangeability with existing products in the field.• Same genuine replacement parts availability.• Same warranty coverage.Download our new Energy Effi ciency white paper!Visit www.SEreply.com and enter key code: s198w© 2010 Schneider Electric All Rights ReservedSchneider_EB_April10.indd 13/17/10 11:42:41 AMwww.EBMag.com • April 2010 • 19