Analog Devices OA240QA Solid State Relay 4-Channel In 4-8VDC Out 280VAC 3Amp

The OA240QA is a 4-channel solid state relay (SSR) module developed by Analog Devices for high-reliability switching of AC loads using low-voltage DC control signals. It is suitable for industrial control, automation, and signal isolation tasks.

Model: OA240QA
Manufacturer: Analog Devices
Type: Solid State Relay Module
Number of Channels: 4 independent SSR outputs
Input Voltage Range: 4–8 VDC (logic-level control)
Output Voltage Range: 24–280 VAC (AC load switching)
Output Current Rating: 3 A per channel (resistive load)
Output Type: Zero-crossing AC switching (triac-based)
Isolation: Optical isolation between input and output
Response Time: Fast switching, typically <1 ms
Status Indicators: Per-channel LED input indicators (ON-state)
Mounting Type: PCB or DIN rail carrier (varies by version)
Cooling: Passive (no heatsink required under rated load)
Protection: Built-in snubber circuits and transient protection
Application: Industrial control, PLC outputs, AC load control, HVAC, and lighting systems
Certifications: UL, CE (depending on manufacturing batch) Please review pictures carefully and let us know if you have any questions!