{"product_id":"radio-design-labs-st-acr2-line-level-audio-controlled-relay-5-to-50-s-delay","title":"RDL ST-ACR2 Line-Level Audio Controlled Relay 5 to 50 s Delay","description":"\u003cp\u003eLine-Level Audio Controlled Relay - 5 to 50 s Delay\u003c\/p\u003e\n\u003cp\u003eThe ST-ACR2 is an Audio Controlled Relay in the STICK-ON series. These products are designed for quick, convenient installation, and reliable operation in a variety of control applications. The ST-ACR2 is designed to switch on line level sources.\u003c\/p\u003e\n\u003cp\u003eTwo multiturn trimmers are provided. The SENS potentiometer adjusts the audio input sensitivity. A threshold LED facilitates accurate adjustment. The module can be set to trigger on signals between -30 dBu and 0 dBu. The DELAY control sets the time required for the relay to release when the audio drops below the threshold.\u003c\/p\u003e\n\u003cp\u003eThe delay adjustment range for the ST-ACR2 is from 5 seconds to 50 seconds.\u003c\/p\u003e\n\u003ch2\u003eFeatures:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSwitching Controlled by Audio Signal\u003c\/li\u003e\n\u003cli\u003eSensing of Line-Level Signal\u003c\/li\u003e\n\u003cli\u003eSilence Sensing\u003c\/li\u003e\n\u003cli\u003eDPDT Switching Contacts\u003c\/li\u003e\n\u003cli\u003eOpen-Collector SLAVE Output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAudio Input:10 kΩ balanced bridging\u003c\/li\u003e\n\u003cli\u003eInput Connections:May be connected balanced or unbalanced\u003c\/li\u003e\n\u003cli\u003eControl OutputOpen-collector @ 25 mA suitable to drive indicators or slave LCR relay\u003c\/li\u003e\n\u003cli\u003eIndicators:Audio threshold LED (for setting sensitivity)\u003c\/li\u003e\n\u003cli\u003eRetrigger Delay250 ms\u003c\/li\u003e\n\u003cli\u003eContacts:Double-pole-double-throw\u003c\/li\u003e\n\u003cli\u003eMax. Switching Power:60 W, 125 VA\u003c\/li\u003e\n\u003cli\u003eMax. Switching Voltage:220 Vdc, 250 Vac\u003c\/li\u003e\n\u003cli\u003eMax. Switching Current:2 A\u003c\/li\u003e\n\u003cli\u003eMax. Carrying Current:3 A\u003c\/li\u003e\n\u003cli\u003eActivation Response Time:25 ms\u003c\/li\u003e\n\u003cli\u003eInput Sensitivity:-30 dBu to 0 dBu (adjustable)\u003c\/li\u003e\n\u003cli\u003eRelay Release Delay:5 sec. to 50 sec. nominal (adjustable)\u003c\/li\u003e\n\u003cli\u003ePower RequirementGROUND-REFERENCED, 24 Vdc @ 50 mA*\u003c\/li\u003e\n\u003cli\u003e* Assumes 20 mA max load at SLAVE output\u003c\/li\u003e\n\u003cli\u003eAmbient Operating Environment:0 C to 55 C\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RDL","offers":[{"title":"Default Title","offer_id":42494495916210,"sku":"RDL STACR2","price":209.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/8122\/2322\/products\/ST-ACR2.jpg?v=1754405088","url":"https:\/\/www.performanceaudio.com\/en-ca\/products\/radio-design-labs-st-acr2-line-level-audio-controlled-relay-5-to-50-s-delay","provider":"Performance Audio","version":"1.0","type":"link"}