RDL STLCR1H Installation Guide
STICK-ON® SERIES
Model ST-LCR1H
High Power
Logic Controlled Relay
ANYWHERE YOU NEED...
• Switching of Speaker Lines
• Control from Switch or Logic Circuits
• DPDT Switching Contacts
• Open-Collector Switching
• 8 Amp Relay Contacts
You Need The ST-LCR1H!
The ST-LCR1H is part of the group of versatile STICK-ON products from Radio Design Labs. The durable
adhesives provided with the ST-LCR1H permit permanent or removable mounting. Numerous available
mounting accessories, brackets and rack-mount chassis are optionally available.
APPLICATION: The ST-LCR1H provides dry-switching contacts for high power switching, an LED
indicator showing relay activation, and input connections. Switching contacts are suited to switching many
8 Ω, 70.7 V or 100 V speaker lines.
The relay closes when an input signal is applied. The relay releases when the input signal is removed.
The ST-LCR1H is ideally suited to applications where high power switching contacts need to be added to
nearly any type of control signal. The relay may be activated from any of 3 input signals: 5 Vdc, 24 Vdc, or
open-collector.
Wherever a heavy duty logic controlled relay is needed, the ST-LCR1H is the ideal choice. Use the
ST-LCR1H individually, or combine it with other RDL RACK-UP
products as part of a complete audio/video system.
RDL • 659 N. 6th St. • Prescott, AZ., USA 86301 • (928) 443-9391 • FAX (928) 443-9392 • www.rdlnet.com
®
, STICK-ON, TX™, or FLAT-PAK™ series
STICK-ON® SERIES
Model ST-LCR1H
High-Power Logic Controlled Relay
HIGH POWER RELAY
PWR
24 Vdc
POWER
SOURCE
S
L
A
V
E
ACTUATE
MOMENTARY ACTUATION
SHOWN DE-ENERGISED
24
5
V
V
HIGH CURRENT
DPDT CONTACTS
NOTE ACTUATION
VOLTAGE CAN BE
12Vdc TO 35Vdc
PWR
+5Vdc
OR
LOGIC
DRIVER
RELAY ACTUATION
ADDING ADDITIONAL CONTACTS
HIGH POWER RELAY
PWR
S
L
A
V
E
ACTUATE
24
5
V
V
MOMENTARY ACTUATION
SHOWN DE-ENERGISED
PWR
S
L
A
V
E
S
L
A
V
E
ACTUATE
ACTUATE
Installation/Operation
HIGH POWER RELAY
MOMENTARY ACTUATION
SHOWN DE-ENERGISED
24
5
V
V
HIGH CURRENT
DPDT CONTACTS
NOTE ACTUATION
VOLTAGE CAN BE
3.5Vdc TO 12Vdc
HIGH POWER RELAY
MOMENTARY ACTUATION
SHOWN DE-ENERGISED
24
5
V
V
EN55103-1 E1-E5; EN55103-2 E1-E4
Typical Performance reflects product at publication time
exclusive of EMC data, if any, supplied with product.
Specifications are subject to change without notice.
ACT
S
PWR
L
A
V
E
!
DO NOT
CONNECT
SLAVE TO
POWER +
OPEN COLLECTOR
ACTUATION, EMITTER
CAN BE GROUNDED
High Current DPDT Contacts
Maximum Switching Capacity:
500 W
Speaker Level
8 Amp
250 Vac
8 Amp
30 Vdc
24 Vdc
POWER
SOURCE
DPDT CONTACTS
MASTER
UP TO
4 MORE
SLAVE
DPDT CONTACTS
OPERATE IDENTICAL
TO CONTACTS ON
MASTER ST-LCR
SLAVE
UNITS
TYPICAL PERFORMANCE
OUTPUTS: Open collector@ 25 mA suitable to drive indicators or slave LCRs.
SWITCHING CONTACTS:
Max Current: 8 Amp @ 250 Vac or 30 Vdc
Max Power: 500 W (amplified audio signal)
Power Requirement: 24 to 33 Vdc @ 50 mA, Ground referenced
SLAVE CONTROL INPUT:
Input from other equipment’s open-collector output activates the relay when the open-collector is pulled to ground
(RDL switching STICK-ONs have available open-collector outputs suitable for driving the ST-LCR1H). Input from
remote push-button or switch activates the relay when that switch is on. Activation is by connecting this input to
ground.
POSITIVE VOLTAGE INPUTS:
The 5 Vdc input accepts 3.5 Vdc to 12 Vdc to activate the relay. The relay is only active when this control signal
is applied. The 24 Vdc input accepts 12 Vdc to 35 Vdc to activate the control circuit. The relay is only active
when this control signal is applied.
891-1045D
Radio Design Labs Technical Support Centers
U.S.A. (800) 933-1780, (928) 778-3554; Fax: (928) 778-3506
Europe [NH Amsterdam] (++31) 20-6238 983; Fax: (++31) 20-6225-287
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