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2007 Trade Show In Print: Tyco Electronics - Circuit Protection
May 2007
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Tyco Electronics’ new line of Raychem Circuit Protection PolySwitch™ LVR circuit protection devices help protect electric motors and transformers used in commercial and home appliances from failures caused by mechanical overloads, overheating, stall, lost neutral, and other potentially damaging conditions. Designed for use in both intermittent and continuous-operation motor applications, these RoHS and UL1434-compliant devices offer low resistance, fast time-to-trip and resettable functionality to help circuit designers develop safe, dependable products that comply with stringent regulatory agency requirements.

Rated for 120 and 240 V AC line voltage applications, PolySwitch LVR devices also help reduce warranty returns caused by motor failure. Unlike single-use fuses, these devices do not require replacement after a fault event. After the overcurrent condition is eliminated and power has been removed, the circuit is restored to normal operating condition. Compared to bimetal breakers, LVR devices offer greater flexibility, longer lifespan and lower electromagnetic interference (EMI).

PolySwitch LVR devices help prevent damage where faults may cause a rise in temperature with only a slight increase in current draw. When installed on the primary side of a transformer circuit, in proximity to heat-generating components such as magnetics, field-effect transistors (FETs), or power resistors, the PolySwitch LVR device helps provide both overcurrent and overtemperature protection with a single installed component.

Samples are available now, with delivery 8-10 weeks ARO. Furthermore, an informative LVR whitepaper is available at the company’s Web site.

For more information, contact Tyco Electronics; Web site: www.circuitprotection.com/LVR.

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