GM International D1093S SIL 3 Relay Output Module

The GM International D1093S is a single-channel DIN rail-mounted relay output module that has been approved for SIL 3 safety applications according to IEC 61508:2010 Ed. 2. It is made for high-risk industrial settings where safety circuits need to be switched on and off reliably. It has full line and load diagnostics, with one DPST contact for normally energized (NE) loads and one SPST contact for usually de-energized (ND) loads.

There is also three-port isolation between the input, output, and supply. This module can be installed in Zone 2/Division 2 hazardous regions. It can find faults in open lines and loads, is EMC compliant (EN61000-6-2/4), and has strong signaling LEDs for power, relay status, and faults. It is great for process control, emergency shutdown (ESD), and safety instrumented systems (SIS). It makes sure that safe states are de-energized with confirmed proof test intervals of 14/20 years.

Technical Specifications – D1093S SIL 3 RELAY OUTPUT MODULE

GM International D1093S Key Functions:

-> SIL 3 Certified Safety: Achieves SIL 3 systematic capability for NE/ND loads with de-energized/energized safe states, supporting high-integrity emergency shutdowns and process safety.

-> Advanced Diagnostics: Finds line/load faults (open circuits ≥350 kΩ) in both NE and ND circumstances, with de-energized signaling ≤100 µA so that it can be easily added to safety PLCs.

-> Dual Contact Configuration: Supports both DPST (pins 5-6 SIL 3) for loads that are generally electrified and SPST (pins 7-8) for loads that are normally de-powered. It can also handle 5 A inrush for service loads.

-> Compatible with Hazardous Areas: Can be installed in Zone 2/Group IIC T4, Division 2 Groups A-D. It has full three-way galvanic isolation and strong EMC immunity for loud industrial settings.

-> The design is user-friendly because it can be mounted on DIN rails, has multi-color LEDs for status and faults, and works with pulse-testing DO cards, making it straightforward to install and maintain in control panels.

How to use D1093S Relay Output Module?

• Emergency Shutdown Systems: Connect NE DPST contacts to turn off valves and solenoids when a fault is found, using input from safety PLCs for SIL 3 ESD loops in refineries.
• Process Alarm Activation: Use ND SPST connections to turn on sirens and horns when trip signals go off. Line diagnostics make sure that chemical plants always get the right message.
• Safety Interlocks: Use with inputs that can diagnose problems to protect machines. For example, open load detection can place automated production lines into safe states.
• Hazardous Location Panels: Use ATEX/IECEx approvals to switch safety circuits for pumps, motors, or sensors in Zone 2/Div 2 enclosures.