ST-LCR1

RDL ST-LCR1 - Logic Controlled Relay - Momentary

The RDL ST-LCR1 is a momentary DPDT (double-pole, double-throw) relay module designed for professional AV installations where additional switching contacts are required for existing control signals. It can be triggered by logic circuits, push-buttons, switches, or open-collector outputs.

With its compact STICK-ON form factor, the ST-LCR1 is ideal for space-constrained environments where reliability is essential. An integrated LED indicator provides visual feedback of relay activation, simplifying system diagnostics and integration.

Functionality

• Adds switching contacts to nearly any control signal
• Accepts logic inputs, push-buttons, switches, and open-collector outputs
• Momentary relay operation – active only while control signal is present
• Compatible with 3.5-12 V DC (5V+) and 12-35 V DC (24V+) control voltages
• Open-collector output for driving indicators or additional ST-LCR1 modules

Features

• Relay type: DPDT (double-pole, double-throw)
• Max switching power: 60 W (220 V DC, 125 V AC, 2 A)
• Control inputs: SLAVE (to ground), 5V+ (3.5-12 V DC), 24V+ (12-35 V DC)
• Control output: open-collector, 25 mA
• LED indicator for relay status
• Power requirement: 24 V DC, 50 mA (with max SLAVE load 20 mA)
• Operating temperature: -10°C to +55°C
• Mounting: STICK-ON module - compact and easy to integrate

The RDL ST-LCR1 is a reliable and versatile solution for AV integrators seeking a simple way to expand control system capabilities. Its broad compatibility and robust design make it ideal for commercial, educational, and industrial installations.