LRSSR-14DA2405 Solid State Relay – AC Output, 5A, 12–240VAC

LRSSR-14DA2405 AC Output Solid State Relay The LRSSR-14DA2405 is a compact solid state relay with an aluminum housing and thyristor output for switching AC loads. It features a non-polarized 5–24 VDC control input, optocoupler isolation and a red LED operating indicator. Output type: AC / Thyristor Load voltage range: 12–240 VAC Load current range: 0.13–5 A Control input: 5–24 VDC, non-polarized Control current: 9–13 mA, constant current Housing: Aluminum Select this model for AC loads. Apply the load-current safety factors and temperature derating specified in the datasheet. Package Options Relay Only: Includes 1 relay. Socket not included. Relay with Socket: Includes 1 relay and 1 matching socket. Need a DC output model? View the LRSSR-14DD0612 — DC Output, 12A, 2–60VDC . LRSSR-14 Series — Technical Specifications Parameter LRSSR-14DA2405 LRSSR-14DD0612 MODEL DIFFERENCES Output type AC / Thyristor DC / MOSFET Load voltage range 12–240 VAC 2–60 VDC Load current range 0.13–5 A 0.01–12 A On/off indicator Red LED Green LED Turn-on / turn-off time 1/2 AC cycle ≤ 0.2 ms Peak withstand voltage 480 VAC 72 VDC Non-repetitive peak withstand current 50 A (within 8 ms) 100 A (within 5 ms) On-state characteristic Voltage drop: max. 1.2 V Resistance: max. 5 mΩ Load current safety factor — resistive load 80% of Ie 100% of Ie Load current safety factor — inductive load 25% of Ie 50% of Ie Load current safety factor — other composite loads 50% of Ie 60% of Ie SHARED PARAMETERS — BOTH MODELS Control voltage 5–24 VDC Control input polarity Non-polarized Guaranteed turn-on voltage 4 VDC Guaranteed turn-off voltage 1.8 VDC Control current 9–13 mA (constant current) Input/output isolation Optocoupler isolation Dielectric strength Approx. 2500 VAC, 50 Hz (input to output) Housing Aluminum Ambient temperature −20°C to +80°C Product weight Approx. 41 g Input and output specifications are stated at Ta = 25°C. Ie = rated load current. Apply temperature derating according to the datasheet curve. Frequently Asked Questions 1. Which model should I choose? Choose LRSSR-14DA2405 for AC loads within 12–240 VAC and 0.13–5 A, or LRSSR-14DD0612 for DC loads within 2–60 VDC and 0.01–12 A. Apply the load-current safety factors and temperature derating specified in the datasheet. 2. Does the control input require a specific polarity? No. Both models use a non-polarized 5–24 VDC control input at terminals 1 and 5. This applies only to the control input. For LRSSR-14DD0612, follow the DC output polarity markings: terminal 3 (+) and terminal 4 (−), and connect the load as shown in the wiring diagram. 3. Is derating required at high ambient temperatures? Yes. Follow the switching-current versus ambient-temperature curve for the selected model. Also observe the datasheet load-current safety factors and provide sufficient installation clearance and ventilation.