Siron 19H01088-0350 Y449

Technical Dossier

Product Details And Specifications

SIRON 19H01088 Series Technical Notes

The SIRON 19H01088 series is a family of relay output modules engineered for deployment in safety-critical and continuous-process industrial environments. These modules are found in distributed control system (DCS) architectures across chemical processing plants, petroleum refineries, nuclear power generation facilities, and heavy manufacturing installations worldwide. The 19H01088 series interfaces directly with SIRON's backplane bus infrastructure, providing galvanically isolated relay contact outputs for actuator control, interlock logic, and field device switching. Their robust construction — rated for extended temperature ranges and high-vibration environments — has made them a standard component in long-lifecycle plant automation projects where replacement availability is a primary procurement concern.

19H01088 Full Catalog & Functionalities (SKU List)

The following SKUs represent the documented range of the SIRON 19H01088 relay module series, classified by functional type. Each entry reflects a distinct hardware configuration within the series:

Relay Output Modules

• 19H01088-0350 Y449: 8-channel relay output module, 24 VDC coil, SPDT contacts, Y449 hardware revision
• 19H01088-0350 Y450: 8-channel relay output module, revised contact rating, Y450 backplane revision
• 19H01088-0351 Y449: 16-channel relay output, extended I/O density, standard DIN backplane mount
• 19H01088-0351 Y450: 16-channel relay output, Y450 revision, updated EMC filtering
• 19H01088-0352 Y449: Relay output module with integrated status LED per channel, Y449 revision
• 19H01088-0352 Y450: LED-status relay output, Y450 revision, enhanced diagnostics register
• 19H01088-0353 Y449: High-current relay output module, 10A contact rating, Y449 revision
• 19H01088-0353 Y450: High-current relay output, Y450 revision, revised terminal block torque spec

Digital Input Modules

• 19H01088-0200 Y449: 16-channel 24 VDC digital input module, sink/source configurable
• 19H01088-0200 Y450: 16-channel DI, Y450 revision, updated input filter timing
• 19H01088-0201 Y449: 32-channel digital input, high-density I/O, Y449 backplane
• 19H01088-0201 Y450: 32-channel DI, Y450 revision, revised bus arbitration firmware

Digital Output Modules

• 19H01088-0300 Y449: 16-channel 24 VDC transistor output, source type, Y449 revision
• 19H01088-0300 Y450: 16-channel DO transistor, Y450 revision, short-circuit protection update
• 19H01088-0301 Y449: 32-channel transistor output, high-density DO, Y449 backplane revision
• 19H01088-0301 Y450: 32-channel DO, Y450 revision, updated overcurrent threshold

Communication & CPU Modules

• 19H01088-0100 Y449: Backplane communication adapter, PROFIBUS-DP interface, Y449 revision
• 19H01088-0101 Y449: CPU module, local bus master, coordinates I/O scan cycle for 19H01088 rack