Product Details
Product Overview
The IS420YDIAS1B functions as a high-density Discrete Contact Input module specifically engineered for the General Electric Mark VIeS Functional Safety system. This Brand New original I/O pack digitizes field signals from limit switches, pushbuttons, and relay contacts for critical turbine control and safety instrumented functions. By integrating 24 input channels into a compact surface-mount architecture, it maximizes cabinet space while providing high-speed data acquisition via redundant IONet connections.
Technical Specifications
The IS420YDIAS1B utilizes advanced circuit protection and high-speed processing to maintain signal integrity in electrically noisy environments.
| Feature | Specification Details |
| Manufacturer | General Electric (GE) |
| Series | Mark VIeS (Safety) |
| Input Channels | 24 Discrete Inputs |
| Input Isolation | 1500 V |
| Voltage Rejection | 125 V DC |
| Power Input | Three-pin specialized input |
| Network Interface | Dual RJ-45 Ethernet Connectors |
| Technology | Surface Mount (SMT) |
| Operating Temp | -40 to 70°C |
| Dimensions | 8.26 cm (H) x 4.19 cm (W) x 12.1 cm (D) |
Engineering Advantages
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Superior Galvanic Isolation: The module provides 1500 V input isolation, protecting the core control logic from field-side voltage spikes and ground loops. This hardware barrier prevents catastrophic failures in the event of external electrical faults.
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High-Density Monitoring: Engineers manage up to 24 independent field contacts through a single interface. This reduces the total hardware footprint and simplifies the wiring architecture within the control enclosure.
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Redundant Network Integrity: Dual RJ-45 Ethernet ports allow the module to communicate across redundant IONet fabrics. If one network path fails, the module continues transmitting critical status data without interruption, ensuring zero-downfall safety monitoring.
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Extreme Thermal Resilience: The ruggedized surface-mount design allows for reliable operation from -40°C to +70°C. This eliminates the need for expensive localized cooling or heating units in remote or outdoor control skids.
FAQs
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Is this IS420YDIAS1B unit a new original or a surplus part?
We supply this product exclusively as a 100% Brand New, original GE factory-sealed unit. It meets all current Mark VIeS safety certifications and functional standards.
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How does the 125 V DC voltage rejection benefit my system?
This feature allows the module to filter out significant common-mode noise and induced voltages often found in long-distance field wiring. It ensures that the controller only registers genuine contact transitions, preventing "ghost" signals or false trips.
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Which terminal boards are compatible with the IS420YDIAS1B?
This I/O pack typically mounts to TBCI or TIDI series terminal boards. The DC-37 pin connector on the base ensures a secure, tool-free mechanical and electrical connection to the associated terminal block.
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Does the module support hot-swapping?
The Mark VIeS architecture allows for the replacement of I/O packs while the system remains powered; however, you must follow specific safety protocols detailed in the GEH-6725 system manual to maintain the safety integrity level (SIL).
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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