GFCI offers 2-stage protection.
Press Release Summary:
SmartLockPRO(TM) GFCI offers 2-stage protection against ground fault shock hazard. Unit cannot be reset when line and load terminals are mis-wired. In instances of improperly wired load-load reversal, green diagnostic LED indicator turns ON to signal wiring error. Once device is properly re-wired, it can be reset and LED will function as power indicator. If device fails to work properly at any time after it is installed, it cannot be reset, and must be replaced.
Original Press Release:
Leviton's SmartLockPROTM GFCI Prohibits Power without Protection
Newest Lock-out GFCI Offers Highest Level of Ground Fault Shock Protection Available Today
Little Neck, New York, July 28, 2006 - Leviton's new SmartLockPRO(TM) GFCI raises the bar for electrical safety and complies with UL's latest GFCI requirements which go into effect today. Based on the patented lock-out feature of Leviton's original SmartLock® GFCI, the SmartLockPRO offers two-stage protection against ground fault shock hazard, adding enhanced electrical safety features.
As part of its two-stage protection feature, the SmartLockPRO cannot be reset when its line and load terminals are mis-wired. In instances of an improperly wired line-load reversal, the green diagnostic LED indicator will turn ON to signal the wiring error. Once the device is properly re-wired it can be reset and its LED will function as a power indicator light, signaling that power is available at the receptacle.
A second stage of protection is afforded during the GFCI's service life. If the device fails to work properly (i.e., stops providing ground fault protection) at any time after it is installed, it cannot be reset. This provides a clear indication to users that the device must be replaced.
According to Bill Grande, Director of Safety Products for Leviton, "Our extensive research showed that with earlier GFCI designs, users would unknowingly continue to use a GFCI even though it failed to provide protection against ground faults. It was also easy to put an improperly wired GFCI into service and have it appear as though it was working correctly. SmartLockPRO offers several advances that help ensure error-free installation. Once installed, the device stands up to rigorous use though the improvements we've made in its electronics and material construction. As a final measure of safety, the reset lockout feature visibly communicates the need to replace the device should it fail its internal test function."
Earlier generations of GFCIs can be reset even though they are not providing ground fault circuit protection. With SmartLockPRO's unique, patented end-of-life lock-out action, users cannot reset the device when it fails to pass its internal test function, adding an extra measure of critical protection.
For more information, contact Leviton Manufacturing Co., Inc., 59-25 Little Neck Parkway, Little Neck, NY 11362-2591, Phone: 1-800-323-8920, www.leviton.com.
