{"product_id":"signal-sd-s-series-lightning-protection-modules-for-sds-two-wire-irrigation-controllers-sd-sp-sd-sa-sd-gr","title":"Signal SD-S Series Lightning Protection Modules for SDS Two-Wire Irrigation Controllers – SD-SP \/ SD-SA \/ SD-GR","description":"\u003cp\u003eThe Signal SD-S Series Lightning Protection Modules provide a coordinated surge protection system for Signal SDS Series Two-Wire Irrigation Controllers and connected field devices. Designed to protect controller electronics, DataCoils™, decoders, and other equipment from electrical surges caused by nearby lightning strikes or power disturbances, the system combines controller-level protection, field surge suppression, and dedicated grounding hardware. The range includes the SD-SP Surge Protector for installation at the controller, the SD-SA Surge Arrestor for protection along extended two-wire paths, and the SD-GR Grounding Rod Kit for establishing a suitable earth connection.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSignal SDS-50 and SDS-100 two-wire irrigation systems\u003c\/li\u003e\n\u003cli\u003eCommercial landscape irrigation installations\u003c\/li\u003e\n\u003cli\u003eAgricultural and farm irrigation systems\u003c\/li\u003e\n\u003cli\u003eSports fields and turf irrigation networks\u003c\/li\u003e\n\u003cli\u003eMunicipal parks and public landscape systems\u003c\/li\u003e\n\u003cli\u003eLong-distance two-wire irrigation networks\u003c\/li\u003e\n\u003cli\u003eSites exposed to lightning or electrical surge risk\u003c\/li\u003e\n\u003cli\u003eProtection of controllers, DataCoils™, field devices, and two-wire cabling\u003c\/li\u003e\n\u003cli\u003eNew SDS installations requiring compliant surge and grounding protection\u003c\/li\u003e\n\u003cli\u003eExisting SDS systems requiring additional field surge suppression\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSignal SD-S Series Lightning Protection Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLightning and Electrical Surge Protection System for SDS Two-Wire Irrigation Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Controllers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSignal SDS-50 and SDS-100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable Modules\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSD-SP Surge Protector, SD-SA Surge Arrestor, and SD-GR Grounding Rod Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrimary Application\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProtection of SDS Controllers, Two-Wire Paths, and Connected Field Devices from Electrical Surges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSD-SP Function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eController-Level Surge Protection and Grounding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSD-SP Installation Location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAt the Irrigation Controller, Positioned as Close as Practical to the Earth Stake\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSD-SP Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIncluded with SDS-50 and SDS-100 Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSD-SP Warranty Requirement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRequired for Applicable SDS System Warranty Compliance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSD-SA Function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIn-Field Surge Suppression for the Two-Wire Network\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSD-SA Recommended Spacing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproximately Every 300–400 m or Every 16 Valves Along the Two-Wire Path\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSD-GR Function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGrounding Rod Kit for SD-SP and SD-SA Installations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended Ground Rod Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMinimum 2 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGround Resistance Requirement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤10 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrounding Cable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlat Braided Grounding Cable Recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproved Waterproof Two-Wire Connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTypical Field Installation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eValve Boxes or Accessible Service Pits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Variants\u003c\/h3\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSD-SP\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSurge Protector installed at the controller to help protect controller electronics and the power input from electrical surges. It must be connected to a suitable earth stake.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSD-SA\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eField Surge Arrestor installed along the two-wire path to provide additional surge suppression for DataCoils™, field devices, and extended irrigation cabling.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSD-GR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGrounding Rod Kit designed to provide a suitable grounding point for SD-SP and SD-SA installations, with a minimum 2 m rod recommended.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProvides coordinated lightning and electrical surge protection for Signal SDS two-wire irrigation systems\u003c\/li\u003e\n\u003cli\u003eProtects both controller electronics and connected field equipment\u003c\/li\u003e\n\u003cli\u003eSD-SP controller surge protector is supplied with SDS-50 and SDS-100 controllers\u003c\/li\u003e\n\u003cli\u003eSD-SP installation is required for applicable SDS system warranty protection\u003c\/li\u003e\n\u003cli\u003eSD-SA field surge arrestors provide additional protection along extended two-wire networks\u003c\/li\u003e\n\u003cli\u003eRecommended SD-SA spacing is approximately every 300–400 metres or every 16 valves\u003c\/li\u003e\n\u003cli\u003eHelps protect DataCoils™, field devices, and two-wire cabling against surge events\u003c\/li\u003e\n\u003cli\u003eSD-GR Grounding Rod Kit provides a dedicated grounding solution for compatible protection modules\u003c\/li\u003e\n\u003cli\u003eSystem requires a ground resistance of 10 Ohms or less for effective protection\u003c\/li\u003e\n\u003cli\u003eFlat braided grounding cable is recommended to provide a low-impedance connection to earth\u003c\/li\u003e\n\u003cli\u003eApproved waterproof connectors are required for field connections to SD-SA modules\u003c\/li\u003e\n\u003cli\u003eField arrestors can be installed in valve boxes or accessible service pits for inspection and maintenance\u003c\/li\u003e\n\u003cli\u003eModular design allows additional field protection to be added as the irrigation network expands\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the SD-SP surge protector at the irrigation controller and position it as close as practical to the grounding stake.\u003c\/li\u003e\n\u003cli\u003eConnect the SD-SP to a correctly installed earth system using suitable flat braided grounding cable.\u003c\/li\u003e\n\u003cli\u003eInstall SD-SA surge arrestors approximately every 300–400 metres or after approximately 16 valves along the two-wire network.\u003c\/li\u003e\n\u003cli\u003eUse approved waterproof two-wire connectors when connecting SD-SA units in field locations.\u003c\/li\u003e\n\u003cli\u003eInstall field surge arrestors inside valve boxes or accessible service pits where they can be inspected and serviced.\u003c\/li\u003e\n\u003cli\u003eUse the SD-GR or another suitable grounding system capable of achieving an earth resistance of 10 Ohms or less.\u003c\/li\u003e\n\u003cli\u003eA minimum 2 m grounding rod is recommended where site conditions allow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBenefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eController Protection:\u003c\/strong\u003e The SD-SP helps protect valuable SDS controller electronics and power circuits from damaging electrical surges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField Device Protection:\u003c\/strong\u003e SD-SA modules extend surge suppression into the two-wire network to help protect DataCoils™, wiring, and connected devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced Damage Risk:\u003c\/strong\u003e Properly installed surge and grounding protection can reduce the likelihood of widespread irrigation system damage following nearby lightning activity or power anomalies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScalable Protection:\u003c\/strong\u003e Additional field surge arrestors can be installed as the two-wire network becomes longer or additional valves are added.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved System Reliability:\u003c\/strong\u003e Distributed surge protection helps improve the resilience of large commercial and agricultural two-wire irrigation installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty Compliance:\u003c\/strong\u003e Correct installation of the required SD-SP protection helps satisfy applicable SDS system warranty requirements.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Signal","offers":[{"title":"Default Title","offer_id":67745858125933,"sku":"SD-SP","price":252.15,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1399\/2979\/files\/lightning-protection.png?v=1792052517","url":"https:\/\/pumptastic.com.au\/products\/signal-sd-s-series-lightning-protection-modules-for-sds-two-wire-irrigation-controllers-sd-sp-sd-sa-sd-gr","provider":"Pumptastic","version":"1.0","type":"link"}