The ST-VOX1 Voice Operated Relay can be actuated by an unbalanced mic or line level source. It is primarily used in intercom and talkback applications where a fast contact release time (adjustable 70 to 260 ms) is desired. In applications where longer release times are desired we suggest the use of ST-ACR Series Audio Controlled…
ST-LCR Series Logic Controlled Relays – What do you need to control?
RDL ST-LCR Series Logic Controlled Relays are used in a variety of applications. From switching speaker loads in a sound system to providing pulses for lowering and raising projection screens or window blinds. They can be controlled from a variety of sources including switch closures, Open-Collector outputs from other RDL or third party products and control voltages ranging from 3.5 to 24 Vdc.
There are four products in the ST-LCR Series:
- ST-LCR1 Logic Controlled Relay with DPDT (2 X FORM C) Dry Contacts Rated at 60W (220 Vdc, 125 Vac, 2 A). The relay actuates (changes state) when an input signal is applied and de-actuates (reverts to normal) when the signal is removed. (AN-2016, AN-2021)
ST-LCR1H High Power Logic Controlled Relay with DPDT (2 X FORM C) Dry Contacts Rating is 8 Amps @ 250 Vac or 30 Vdc (500 W Speaker Level). Other than the contact rating, the ST-LCR1H is nearly identical to the ST-LCR1.
ST-LCR2 Alternate Action Logic Controlled Relay with DPDT (2 X FORM C) Dry Contacts Rated at 60W (220 Vdc, 125 Vac, 2 A). Relay actuation is latching. The relay actuates when an input signal is applied and released. The relay de-actuates when a second signal is applied and released. Pulse it ON and Pulse it OFF.
ST-LCR3 Alternate Pulse Dual Relays with two discrete SPST Normally Open (FORM A) contacts each rated at 60W (220 Vdc, 125 Vac, 2 A). The START PULSE relay actuates for 250 ms when an input signal is applied. The END PULSE relay then actuates for 250 ms when the signal is removed.
All this switching control is available in the incredible convenience of the RDL STICK-ON® package. It’s a STICK-ON…put it where you need it! ST-LCRs are your simple and economical switching solutions!