WWF Series for Surge Handling and Failsafe Operation

The WWFSeries from Stackpole is designed to withstand thousands of surgesat 6KV without failing, but will fuse without fire, explosion or fragmentationunder continuous 240V ac overload. The combination of these two opposingrequirements poses a difficult challenge for wirewound resistors. Stackpole'sfusing technology combines welded resistance elements for robust surge handlingwith proprietary materials and processing to fuse quickly and safely undercontinuous overload and the WWF Series is conformally coated.

The surgewithstanding WWF Series is a useful choice for applications such as utilitymetering, appliances such as washers and dryers, refrigerators, and freezers,and a wide variety of other motor and power control applications. Due to thewide variety of design requirements for these applications, the WWF Series istypically built to the customer specification. Pricing varies with size,tolerance and specific customer requirements and pricing ranges from around$0.17 each to $1.25 each in minimum quantities.

WWF Series for Surge Handling and Failsafe Operation