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.
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.
| 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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