{"product_id":"eaton-esf631-tn-e-surge-suppressorprotector-esf631-tn-e","title":"Eaton ESF631-TN-E Surge Suppressor\/Protector","description":"\u003cb\u003eFunctional Description\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eThe ESF series surge filters are Class II, single and three phase, 2 port SPDs, designed to provide complete site surge protection in a compact footprint. These models utilize UL1449 ed3 certified thermally-fused MOV devices in conjunction with air-wound inductors to provide a currentlimited output, coordinated to surge levels below 3kA. This means that all downstream power circuits are protected to ANSI\/IEEE C62.41 Category B level, the common level that medium power LV loads (UPS, rectifier, industrial machines) are designed to accept. The design results in an exceptionally low let through voltage. ( \u0026lt;600V, 3kA, 8\/20us ). In addition, the units also provide filtering of line harmonics, noise and RF transmitters with a cut off frequency of \u0026lt;10KHz and a nominal attenuation of 48dB above 1MHz.\u003cbr\u003e\u003cbr\u003eThe units can be supplied in gear-tray format for installation into a switchboard, or enclosed in an IP54 enclosure. When installed in compliance with the manufacturer's instructions and applicable standards, this unit provides a high degree of protection to connected loads. Models are offered in 1 or 3 phase for TT or TN-based power systems in the range of 50A to 80A.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePrinciple of Operation\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eExcess potentials are captured by the primary protection stage, resulting in a protection level of \u0026lt;600V @ 3kA, (8\/20us) and \u0026lt;800V @ 50kA, Inom (8\/20us). The filter components reduce rise-time of the remaining surge and control current to the secondary MOVs. A 'Low Q' filter design is utilized to avoid resonance effects. When the secondary MOVs conduct, the unit's output is clamped and the inductor provides current-limiting of the surge into the externally-connected load circuits. TN models use Neutral as the primary and secondary surge return paths and provide Neutral-Earth protection via a high-energy gas arrestor. TT models use Earth as the primary surge return and Neutral as the secondary surge return path. TT models use MOV devices for Neutral-Earth protection. These units are applicable to TT, TN-C, TN-S and TNC-S power systems nominally rated between 380 and 440V.","brand":"Eaton Corporation","offers":[{"title":"Default Title","offer_id":45667653320881,"sku":"ESF631-TN-E","price":3111.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/1824\/5809\/files\/1022854967.jpg?v=1769409938","url":"https:\/\/securitycamerasaustralia.com.au\/products\/eaton-esf631-tn-e-surge-suppressorprotector-esf631-tn-e","provider":"Security Cameras Australia","version":"1.0","type":"link"}