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Home : Audio Production Equipment : RDL, Radio Design Labs - ST-ACR2

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5 to 50sec Delay Line-Level Controlled Relay

Series:

Model: ST-ACR2

Switching Controlled by Audio Signal
Sensing of Line-Level Signal
Silence Sensing
DPDT Switching Contacts
Open-Collector SLAVE Output

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The 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. 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.

Switching Controlled by Audio Signal
Sensing of Line-Level Signal
Silence Sensing
DPDT Switching Contacts
Open-Collector SLAVE Output

Operating Temperature (Maximum): 131 F
Operating Temperature (Minimum): 32 F
Depth: 0.65 in
Height: 1.55 in
Width: 3 in
Shipping Weight: 0.22 lbs
Audio Input: 10 k ohm balanced bridging
Input Connections: May be connected balanced or unbalanced
Control Output: Open-collector @ 25 mA suitable to drive indicators or slave LCR relay
Indicators: Audio threshold LED (for setting sensitivity)
Retrigger Delay: 250 ms
Contacts: Double-pole-double-throw
Max. Switching Power: 60 W 125 VA
Max. Switching Voltage: 220 Vdc or 250 Vac
Max. Switching Current: 2 A
Max. Carrying Current: 3 A
Activation Response Time: 25 ms
Input Sensitivity: -30 to 0 dBu Adjustable
Relay Release Delay: 5 to 50 Sec nominal adjustable
Power Requirement: 24 to 33 Vdc @ 50 mA

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