Omron G7SA, 12V Safety Relay

Omron G7SA Series Safety Relay, 12V Coil Voltage, DPST Contact Configuration - G7SA-2A2B 12VDC

This safety relay provides a compact, low‑power solution for monitoring and controlling machinery within automated and electronic systems. Designed for PCB mounting, it functions as a double‑pole single‑throw switching device that supports both AC and DC loads, offering straightforward integration into control circuits in industrial settings.

Features & Benefits

• 12V Coil voltage delivers compatible control with standard DC supplies
  6A contact rating enables handling moderate current loads
  360 mW power consumption reduces control‑circuit draw
  Switching capability to 250V AC supports common mains‑level switching
  Operating range from −40 to 85 °C permits use in varied temperature environments

Applications

• Suitable for safety interlock circuits in assembly machinery
  Ideal for retrofit of control panels requiring PCB‑mounted relays
  Used for monitoring emergency‑stop chains in automation lines
  Can be used for DC isolation in battery‑backed control systems

What Terminal arrangement does it use and how does that affect PCB layout?

It uses PCB‑mounted terminals with a DPST contact configuration, allowing two independent switching paths to be routed directly through the board and simplifying track organisation for redundant safety circuits.

How does its power consumption influence control supply sising?

At 360 mW Coil consumption, the design requires only a small fraction of typical 12V control supply capacity, permitting more Compact power supplies or higher device counts on a single rail.

What are the ambient temperature limits for reliable operation?

The unit is rated to operate between −40 and 85 °C, enabling deployment in chilled or heated plant areas without additional thermal management.

What switching voltages and currents can be expected during normal operation?

Contacts are specified for switching up to 250V AC and up to 125V DC with a continuous contact current capability of 6 A, suitable for control and protective functions rather than primary power delivery.