Honeywell FC-IOTA-R24 Redundant IOTA 24-Point Module

Availability: 99 left in stock

Product Overview The Honeywell FC-IOTA-R24 (Part Number 51306505-175) serves as a high-availability Redundant Input/Output Termination Assembly (IOTA) for the Honeywell Fail-Safe Control (FSC) and Safety...

SKU: FC-IOTA-R24

Manufacturer: Honeywell
Product No.: FC-IOTA-R24
Product Type: Redundant I/O Systems
Product Origin: USA
Payment:T/T, Western Union
Weight: 560g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Product Overview

The Honeywell FC-IOTA-R24 (Part Number 51306505-175) serves as a high-availability Redundant Input/Output Termination Assembly (IOTA) for the Honeywell Fail-Safe Control (FSC) and Safety Manager architectures. This module provides a high-density physical bridge between field wiring and redundant I/O modules, enabling a "fail-over" capability that maintains process control even if a single I/O module malfunctions. We supply this assembly as 100% Brand New and Original, providing the hardware foundation required for SIL 3-capable safety loops where zero downtime is mandatory.

Technical Specifications

The FC-IOTA-R24 manages power distribution and signal routing across 24 independent termination points with high current-carrying capacity.

Feature	Specification Details
Part Number	51306505-175
Model Number	FC-IOTA-R24
Supply Voltage	24 VDC (-15% to +30%)
Maximum Load	10 A (Total Supply)
Termination Points	24 Screw-type terminals
Protection	Reverse polarity (integrated parallel diode)
Operating Temp	-40 °C to +70 °C (-40 °F to +158 °F)
Dimensions	44.32 cm x 12.07 cm x 6.4 cm
Weight	0.56 kg (1.23 lbs)
Compliance	CE, UL/TUV (Pending), RoHS

Engineering Advantages

Fault-Tolerant Architecture: The assembly supports dual-module mounting, allowing two I/O modules to work in parallel. This redundancy eliminates single points of failure in the I/O subsystem, ensuring the safety system continues to monitor process variables during hardware maintenance or faults.
Robust Power Management: Equipped to handle a total supply load of up to 10 A, the FC-IOTA-R24 powers high-density digital and analog signals without thermal throttling. The integrated parallel diode provides instant reverse polarity protection, shielding the FSC backplane from wiring errors.
Wide-Range Environmental Tolerance: Engineered for unconditioned cabinets, this assembly operates reliably from -40 °C to +70 °C. This resilience makes it suitable for remote oil and gas installations, refineries, and offshore platforms where temperature fluctuations are common.
Simplified Field Wiring: The 24 termination points utilize heavy-duty screw-type terminals. This design simplifies cable management and ensures secure electrical contact under high-vibration conditions, common in heavy manufacturing and power generation environments.

FAQs

Can I use the FC-IOTA-R24 for both analog and digital signals?

Yes. The FC-IOTA-R24 provides the physical termination and communication pathway for both analog and digital safety signals, provided you install the compatible redundant I/O modules on the assembly.
How does the redundancy switch-over work on this IOTA?

The IOTA acts as a passive backplane for two active I/O modules. The Safety Manager logic controls the redundancy; if the primary module fails, the secondary module immediately maintains the field signal processing through the shared termination points.
Does this part number (51306505-175) include the I/O modules?

No. This part number refers specifically to the Termination Assembly (IOTA). You must purchase the redundant I/O modules separately to complete the hardware set.
What is the condition of the 51306505-175 units you ship?

We guarantee every 51306505-175 is 100% Brand New and original. Each unit arrives in its original Honeywell factory packaging with full technical documentation for SIL 3 compliance verification.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.