The GE IS420UCSBS1A is a high-integrity Safety Controller Module developed by General Electric (GE) for use within Mark VIeS functional safety control systems. Designed to execute safety-critical logic with deterministic precision, this controller plays a central role in protecting industrial processes such as gas turbines, steam turbines, and energy systems.
Built on a proven real-time architecture, the IS420UCSBS1A integrates advanced processing, network-based I/O communication, and SIL-rated safety capabilities, making it an essential component for modern industrial environments requiring both performance and compliance.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | GE (General Electric) |
| Model | IS420UCSBS1A |
| Module Type | Safety Controller Module (UCSB) |
| System Compatibility | Mark VIeS / EX2100e / LS2100e |
| Processor | Intel EP80579 @ 600 MHz |
| Memory | 256 MB DDR2 SDRAM |
| Operating System | QNX Neutrino RTOS |
| Communication | IONet, Ethernet, Modbus TCP |
| Redundancy Support | Simplex, Dual, TMR (Triple Modular Redundancy) |
| Power Supply | 18–36 V DC (24–28 V nominal) |
| Operating Temperature | -30 °C to +65 °C |
| Mounting | Panel mount |
| Dimensions (L × W × H) | 230 mm × 167 mm × 64 mm |
| Weight | 1.25 kg |
| Safety Certification | SIL2 / SIL3 (IEC 61508 compliant) |
Recommended Related Models
- GE IS420UCSBH1A – Standard UCSB controller module
- GE IS420UCSBH3A – High-performance quad-core controller
- GE IS420PPNGH1A – PROFINET gateway module
- GE IS420ESWBH2A – Industrial Ethernet switch
These modules enable scalable, redundant, and high-availability control architectures within GE automation platforms.
Popular Allen Bradley Models
- Allen-Bradley 1756-L81ES – Safety ControlLogix controller
- Allen-Bradley 1756-EN2T – EtherNet/IP communication module
- Allen-Bradley 1756-IB16S – Safety digital input module
- Allen-Bradley 1783-ETAPND8 – Ethernet network adapter
These are commonly used safety and control equivalents in Rockwell Automation systems.
