Omron G9D-301

Technical Dossier

Product Details And Specifications

OMRON G9D Series Technical Notes

The OMRON G9D Series Safety Relay Units are deployed across global heavy industry sectors including chemical processing plants, petroleum refineries, nuclear power facilities, and automotive manufacturing lines. Designed to meet IEC 61508 and ISO 13849 functional safety standards, the G9D Series provides machine safety interlock control, emergency stop (E-Stop) circuit monitoring, and safety gate supervision. These units are certified to Safety Integrity Level (SIL) 3 and Performance Level (PL) e, making them a reference-grade solution for safety-critical control architectures. The G9D-301 in particular is widely installed in legacy safety systems across Asia-Pacific and European industrial facilities, where long-term spare parts availability is a primary operational concern.

G9D Series Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified G9D Series module range. Each unit is classified by primary safety function. Models not belonging to the G9D Series are excluded.

Emergency Stop / Safety Gate Monitoring

• G9D-301: Single-channel E-Stop / safety gate monitor, 24 VDC, manual reset, 3 N.O. safety outputs
• G9D-302: Dual-channel E-Stop monitor, 24 VDC, automatic/manual reset selectable, 3 N.O. + 1 N.C. outputs
• G9D-303: Safety gate / interlock monitor, 24 VDC, timed muting function, DIN rail mount
• G9D-304: E-Stop relay unit with 4 N.O. safety outputs, extended contact capacity for multi-actuator circuits

Two-Hand Control

• G9D-T01: Two-hand control safety relay, Type IIIC per EN 574, 24 VDC, 0.5 s synchronization window
• G9D-T02: Two-hand control unit with anti-tie-down function, 24 VDC, 3 N.O. safety outputs

Light Curtain / ESPE Interface

• G9D-LP1: Light curtain interface relay, OSSD dual-channel input, 24 VDC, automatic reset
• G9D-LP2: ESPE interface unit, OSSD input with EDM (External Device Monitoring), 24 VDC

Muting Function

• G9D-M01: Muting relay unit, 4-sensor muting input, 24 VDC, for material handling bypass applications
• G9D-M02: Muting controller with lamp output, 24 VDC, concurrent / sequential muting modes

Safety Mat / Pressure-Sensitive Device Interface

• G9D-S01: Safety mat interface relay, 24 VDC, dual-channel input, 2 N.O. safety outputs

Enabling Device / Hold-to-Run

• G9D-E01: Enabling device safety relay, 3-position enabling switch input, 24 VDC

Multi-Function / Configurable

• G9D-401: Multi-function safety relay, configurable for E-Stop, safety gate, or light curtain input, 24 VDC
• G9D-402: Expanded multi-function unit, 6 N.O. safety outputs, suitable for large press and stamping machine circuits
• G9D-501: Safety relay with integrated diagnostics output, 24 VDC, for integration with OMRON NX/NJ safety CPU networks
• G9D-502: Network-ready safety relay interface, EtherNet/IP compatible status output, 24 VDC