The Omron G3S4-D, also cataloged as the G3S4-D Terminal SSR, operates as a dedicated hardware component for contactless DC load switching and signal isolation within automated PLC I/O interface systems.

Hardware Specifications

Deterministic Switching & High-Density Logic Interface

Configured for high-speed signal distribution, the G3S4-D leverages advanced I/O density scaling to optimize terminal footprint within cabinet assemblies. Direct coupling with controller backplane logic or external PLC output ports allows rapid switching response without mechanical wear. Optimized internal firmware flash compatibility across standard Omron interface platforms ensures seamless operational synchronization across multi-channel control loops.

Cable Wiring & Physical Mounting Standards

• DIN Rail Mounting: Snap the terminal unit firmly onto standard 35 mm DIN rail. Ensure both retention clips lock completely to maintain ground continuity and mechanical stability.
• Terminal Wiring: Strip conductor ends to the specified length before insertion into screw terminals. Tighten terminal screws to standard torque limits to prevent wire pull-out or loose resistance contact.
• Load Isolation: Ensure external DC load power lines are separated from low-voltage logic signal wiring to minimize inductive coupling and potential system interference.

Order Fulfillment & Packaging Scope

• 1 x Omron G3S4-D Terminal SSR Unit
• Integrated terminal block screw assembly
• Standard anti-static industrial protective packaging

FAQ Technical Support

Q: What is the primary operational advantage of using the G3S4-D solid state relay terminal over standard electromechanical relays?

A: The solid state switching architecture eliminates mechanical contact bounce, prevents contact degradation from electrical arcing, and delivers significantly faster response times for high-frequency switching operations.

Q: How does the module handle high channel density in compact control panels?

A: The design integrates multiple solid state relay points into a single compact housing, minimizing space on the DIN rail while optimizing channel density for space-constrained enclosures.

Q: Can the signal input circuit be directly driven by standard 24 VDC PLC transistor outputs?

A: Yes, the input control logic is engineered for direct compatibility with standard DC transistor output signals from modern PLC systems.