| Third Edition - Digging Even Deeper... |
June 2009 |
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Featured Article:
Surge Protective Devices
'The Label A Product Wears' |
 In our last newsletter, we reviewed the implementation mechanics of the new UL Standard for Surge Protective Devices, which becomes effective on September 29, 2009.
This month, we are going to focus on the label requirements for products listed to UL 1449-2006 (aka Third Edition).
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With the new standard, labels matter more than ever. They provide important information about the product, its application and installation location as well as electrical ratings.
A typical new label will have the required information as follows:
Manufacturer Name NRTL Logo and Listing Info. (listed to UL 1449)
Model Number SPD Type (1,2,3,4)
Manufacturing Date Voltage Protection Ratings
Voltage Configuration Maximum Continuous Operating Voltage (MCOV)
Frequency NRTL Control Number
NRTL Reference (CSA, UL...) Nominal Discharge Current Rating (In)
All of this information is used by the installer, as well as the inspectors, to track the product back to the manufacturer and to the NRTL certifying agency reports.
Further, this labeling information confirms where the device can be installed. For example, an SPD Type 1 Device indicates that it is a permanently connected device that can be installed on the line-side OR the load-side of the main overcurrent disconnect and meets the requirements of NFPA 780 and NEC 2008 Article 285 as a secondary surge arrester.
A Type 2 Device on the other hand, is a permanently connected device that can be installed ONLY on the load-side of the main overcurrent protective device.
Type 3 Devices are cord connected or direct plug-in type devices, while Type 4 are considered component or partial assemblies requiring an enclosure. Type 4 Devices are typically recognized components rather than complete listed devices.
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| COMING SOON...
...In our next Third Edition newsletter, we will be reviewing more application notes for the different SPD types. |
