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Product Description

High-Availability Interface for Safety Instrumented Systems

The Honeywell FC-IOTA-R24 (Part Number 51306505-175) is a specialized Redundant Input/Output Termination Assembly (IOTA) designed for the Honeywell Fail-Safe Control (FSC) and Safety Manager systems. This assembly provides the high-density physical interface required to connect field wiring to redundant I/O modules. By supporting dual-module mounting, the FC-IOTA-R24 ensures continuous process monitoring and control even during a single module failure, making it an essential component for SIL 3-capable safety loops where system uptime is critical.

Engineered for Rigorous Industrial Environments

Constructed for longevity and reliability, the FC-IOTA-R24 features 24 termination points equipped with screw-type terminals for secure field connections. It is built to operate in extreme conditions, supporting a temperature range from -40 °C to +70 °C. The assembly includes integrated reverse polarity protection via a parallel diode and can handle a total supply load of up to 10 A. Its design facilitates seamless integration with the FSC backplane, providing both the power distribution and communication pathways necessary for complex analog and digital safety signals.

Detailed Technical Specifications

Feature Specification Details
Manufacturer Honeywell
Model Number FC-IOTA-R24
Part Number 51306505-175
Product Type Redundant I/O Termination Assembly
Supply Voltage 24 VDC (-15% to +30%)
Maximum Load 10 A
Number of Points 24 Termination Points
Operating Temp -40 °C to +70 °C (-40 °F to +158 °F)
Storage Temp -40 °C to +85 °C (-40 °F to +185 °F)
Relative Humidity 10% to 95% (non-condensing)
Protection Reverse polarity (parallel diode)
Dimensions 44.32 cm x 12.07 cm x 6.4 cm
Net Weight 0.56 kg (1.23 lbs)
Country of Origin USA
Compliance CE, UL (Pending), TUV (Pending), RoHS

 

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