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RDL ST-ACR2 Line-Level Controlled Relay
RDL ST-ACR2 Line-Level Controlled Relay

RDL ST-ACR2 Line-Level Controlled Relay

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SoundPro Item: 77460
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  • RDL ST-ACR2 Line-Level Controlled Relay
MSRP: $172.82
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The RDL ST-ACR2 Line-Level Controlled Relay 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.

Two 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.

The delay adjustment range for the ST-ACR2 is from 5 seconds to 50 seconds.

RDL ST-ACR2 Features

  • Switching Controlled by Audio Signal
  • Sensing of Line-Level Signal
  • Silence Sensing
  • DPDT Switching Contacts
  • Open-Collector SLAVE Output
  • ST-ACR2 Line-Level Controlled Relay1
  • Audio Input10 kΩ balanced bridging
  • Input ConnectionsMay be connected balanced or unbalanced
  • Control OutputOpen-collector @ 25 mA suitable to drive indicators or slave LCR relay
  • IndicatorsAudio threshold LED (for setting sensitivity)
  • Retrigger Delay250 ms
  • ContactsDouble-pole-double-throw
  • Max. Switching Power60 W, 125 VA
  • Max. Switching Voltage220 Vdc, 250 Vac
  • Max. Switching Current2 A
  • Activation Response Time25 ms
  • Input Sensitivity-30 dBu to 0 dBu (adjustable)
  • Relay Release Delay0.5 sec. to 5.0 sec. nominal (adjustable)
  • Ambient Operating Environment0° C to 55° C
  • Power RequirementGROUND-REFERENCED, 24 Vdc @ 50 mA* (*Assumes 20 mA max load at SLAVE output)
  • Dimensions:Height 0.7 in. (1.7 cm), Width: 3 in. (7.6 cm), Depth: 1.6 in. (3.9 cm)
  • Package Dimensions2 x 2 x 4 in.
  • Shipping Weight0.2 lbs.
  • WEEE weight0.15 lbs.

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RDL ST-ACR2 Line-Level Controlled Relay

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