Product Overview

The Honeywell CC-GAIX21 (Part Number: 51306309-175) is a high-performance Input Output Termination Assembly (IOTA) engineered for the Experion® PKS C300 controller series. This module serves as the primary physical and electrical interface for Galvanically Isolated (GI) and Intrinsically Safe (IS) analog input signals. Designed specifically for explosive atmospheres, the CC-GAIX21 prevents electrical sparks from igniting hazardous environments while converting field-side 4–20 mA or VDC data into high-precision digital values. We supply this unit as 100% Brand New and Original, ensuring mission-critical reliability for offshore rigs, chemical plants, and refineries.

Technical Specifications

Engineering Advantages

• Hazardous Zone Compliance: The CC-GAIX21 incorporates intrinsic safety barriers that limit electrical energy. This design allows field devices to operate safely in Zone 0, 1, or 2 environments without the need for bulky explosion-proof conduits.

• Galvanic Isolation: The module provides total galvanic isolation between the field sensors and the C300 controller backplane. This prevents ground loops and protects the control system from high-voltage transients or field-side electrical faults.

• Extreme Environmental Resilience: Featuring an IP65-rated housing, this IOTA resists moisture, dust, and chemical ingress. Combined with a wide operating temperature range (–40 °C to +85 °C), it thrives in unheated remote instrument enclosures and tropical climates.

• Ultra-High Precision Acquisition: With an accuracy of ±0.05% of Full Scale, the CC-GAIX21 delivers the granular data required for advanced process control (APC) and sensitive custody transfer applications.

• Flexible Communication Integration: The inclusion of RS485 and CAN interfaces allows for simplified diagnostic data retrieval and hardware synchronization within the broader Experion PKS architecture.

FAQs

• Does the CC-GAIX21 support redundant configurations?

  No, the CC-GAIX21 is specifically designed for non-redundant (simplex) configurations. For applications requiring full redundancy, engineers should select the specific redundant IOTA variant compatible with GI/IS AI modules.

• Can this module replace older revisions of the 51306309-175?

  The CC-GAIX21 (Rev C) maintains backward compatibility with previous revisions of the same part number. It slots into existing C300 IOTA mounting positions without requiring hardware modifications.

• What are the specific grounding requirements for the IS interface?

  The CC-GAIX21 requires a dedicated high-integrity instrument ground. Proper grounding ensures that the galvanic isolation barriers function correctly and maintain the intrinsic safety rating of the field loops.

• Is the IP65 rating maintained during field wiring?

  The module achieves its IP65 rating when installed in a compatible, properly sealed Honeywell enclosure using the correct cable glands and seals for all field-side connections.