{"product_id":"st3pr-dual-cycle-twin-timer-relay-socket-base-spdt","title":"ST3PR Dual Cycle Twin Timer Relay with Socket Base | SPDT","description":"\n\u003ch2\u003eST3PR Electrical Twin Timer Relay – Dual Cycle Time Control with Socket Base\u003c\/h2\u003e\n\u003cp\u003eTake precise control of your electrical timing needs with the \u003cstrong\u003eST3PR Dual Cycle Time Relay\u003c\/strong\u003e. Engineered for reliable, repeatable ON\/OFF cycle automation, this twin timer relay is ideal for industrial controls, automation systems, home DIY electrical projects, and equipment sequencing. With its included socket base for easy plug-in installation, setup is straightforward even for intermediate-level hobbyists and professionals alike.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Cycle (Twin Timer) Operation:\u003c\/strong\u003e Independently adjustable ON-time and OFF-time intervals allow full control over each phase of your timing cycle.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSPDT Contact Arrangement:\u003c\/strong\u003e Single Pole Double Throw contacts provide flexible circuit switching — connect to normally open (NO) or normally closed (NC) configurations as needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSocket Base Included:\u003c\/strong\u003e Plug-and-play socket base eliminates hardwiring complexity, making installation, replacement, and maintenance quick and convenient.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Durable Design:\u003c\/strong\u003e Robust housing suitable for panel mounting in control cabinets, automation boards, or DIY enclosures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Application Range:\u003c\/strong\u003e Perfect for time-controlled pumps, lighting systems, motors, irrigation controllers, HVAC sequencing, and more.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo High-Concern Chemicals:\u003c\/strong\u003e Manufactured without restricted high-concern substances for safe handling and use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e ST3PR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Twin Timer \/ Dual Cycle Time Relay\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContact Arrangement:\u003c\/strong\u003e SPDT (Single Pole Double Throw)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Socket Base\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Concern Chemicals:\u003c\/strong\u003e None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e CKCTINNER\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is a dual cycle time relay and how does the ST3PR work?\u003c\/h4\u003e\n\u003cp\u003eA: A dual cycle time relay (also called a twin timer relay) allows you to independently set both an ON-time interval and an OFF-time interval. The ST3PR continuously cycles between these two states — powering on for your set ON duration, then cutting off for your set OFF duration — making it ideal for automated, repeating control of pumps, lights, motors, and other electrical loads.\u003c\/p\u003e\n\u003ch4\u003eQ: What does SPDT contact arrangement mean for this relay?\u003c\/h4\u003e\n\u003cp\u003eA: SPDT stands for Single Pole Double Throw. This means the ST3PR time relay has one common terminal that can switch between two output paths — a Normally Open (NO) contact and a Normally Closed (NC) contact. This gives you flexible wiring options to fit a wide variety of circuit control applications.\u003c\/p\u003e\n\u003ch4\u003eQ: Is the socket base included with the ST3PR time relay?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, a compatible socket base is included with the ST3PR Dual Cycle Time Relay. The socket base allows for easy plug-in installation without complex hardwiring, and also simplifies future relay replacement or maintenance in your control panel or automation system.\u003c\/p\u003e\n\u003ch4\u003eQ: What applications is this twin timer relay best suited for?\u003c\/h4\u003e\n\u003cp\u003eA: The ST3PR is well-suited for any application requiring repeated, timed ON\/OFF switching — including irrigation pumps, conveyor belts, lighting automation, HVAC sequencing, industrial machinery, and DIY home automation projects. Its adjustable cycle times make it highly versatile across many electrical control scenarios.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is a dual cycle time relay and how does the ST3PR work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A dual cycle time relay (also called a twin timer relay) allows you to independently set both an ON-time interval and an OFF-time interval. The ST3PR continuously cycles between these two states — powering on for your set ON duration, then cutting off for your set OFF duration — making it ideal for automated, repeating control of pumps, lights, motors, and other electrical loads.\"}}, {\"@type\": \"Question\", \"name\": \"What does SPDT contact arrangement mean for this relay?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"SPDT stands for Single Pole Double Throw. 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