GE IS220YDIAS1A Discrete Contact Input I/O Module

Global Safety Approvals: Certified for Class I, Division 2, Groups A-D (US & CAN) and Class I, Zone 2, Group IIC (ATEX/global), meeting UL, CSA, and EN 60079 series standards.

Equipment Markings: Rated T4 temperature class, with ATEX marking "Ex nA [ic] IIC T4 Gc" and 

US/CAN Zone 2 marking "AEx nA [nC] IIC T4, Ex nA [nL] IIC T4 Gc X".

Intrinsic Safety Support: Compatible with intrinsically safe ("ic") accessory terminal boards, enabling 

safe operation in explosive atmospheres.

Electrical Performance

Power Supply: 27.4–28.6 V DC input, 0.24 A max current, compatible with standard industrial power 

configurations.

Discrete Inputs: Supports 0–32 V DC contact inputs, with 110 mA max contact wetting output 

current, compatible with most industrial switches and sensors.

Terminal Compatibility: Works with multiple accessory terminal boards (IS200STCIS1A/2A, 

IS400STCIS1A/2A, IS200TBCIS2C, IS400TBCIS2C), offering flexible wiring options.

Temperature Range: -30 to +65 °C (-22 to +149 °F), operating reliably in harsh industrial conditions.

Mechanical Resilience: Withstands vibration (1 mm peak-to-peak, 5–16 Hz; 0.5g, 16–150 Hz) and 

shock (10g ½ sinewave, 11 ms), suitable for rugged on-site installations.

Contaminant Resistance: Complies with ISA-S71.04 Class G3 for airborne contaminants, resisting 

corrosive gases in industrial environments.

Robust Safety & Compliance

Multi-Standard Certification: Eliminates regional compliance barriers, enabling deployment in global projects across oil & gas, chemical, and power industries.

Safe Operation Protocols: Cannot be removed/inserted with system power energized in hazardous 

areas (unless confirmed non-hazardous), minimizing ignition risks.

Intrinsic Safety Compatibility: Works with approved intrinsically safe terminal boards, extending 

application scope to high-risk explosive zones.

Flexible Integration & Versatility

Accessory Compatibility: Supports 6 types of terminal boards (STCIS and TBCIS series), adapting to 

Euro Style Box-type or Barrier-type terminal blocks with specified wire sizes (22–12 AWG) and screw 

torques.

Mark VIeS Ecosystem Integration: Seamlessly integrates with GE’s Mark VIeS SIS, enabling unified 

control, monitoring, and diagnostics for safety instrumented functions (SIFs).

Wiring Flexibility: Accepts copper conductors (90 °C minimum rating) and supports contact wetting 

power outputs, compatible with diverse field sensors and switches.

Industrial-Grade Durability: Reinforced design resists environmental stressors (vibration, shock, 

contaminants), ensuring long-term stability in demanding conditions.

No User-Serviceable Parts: Sealed construction eliminates on-site calibration or disassembly, 

reducing maintenance workload and human error.

Signal Integrity: Isolated discrete input channels prevent cross-interference, ensuring accurate signal acquisition for critical safety logic.