FC-MCAR-02 | Honeywell SM RIO 36 inch Mounting Carrier

Product Overview

The Honeywell FC-MCAR-02 is a 36-inch Mounting Carrier for the Honeywell Safety Manager SM RIO (Signal Module Remote I/O) system. It provides a robust mechanical platform for mounting IOTA-R24 (redundant) and IOTA-NR24 (non-redundant) IO Termination Assemblies, with integrated power and ground distribution rails for simplified field wiring.

Key Specifications

• Model Number: FC-MCAR-02
• Product Type: SM RIO 36-inch Mounting Carrier
• Series: Honeywell Safety Manager
• Dimensions (H × W × D): 105.4 × 222.3 × 931.8 mm (4.15 × 8.75 × 36.7 in)
• Weight: 6.1 kg (13.4 lbs)
• Shipping Weight: 7 kg
• Operating Temperature: -40°C to +70°C (-40°F to +158°F)
• Storage Temperature: -40°C to +85°C (-40°F to +185°F)
• Relative Humidity: 10% to 95% (non-condensing)
• Pollution Degree: 2 or better
• Supply Voltage: 24 V DC (-15% to +30%)
• Supply Rail Current: Max. 40 A
• 24V Supply Connections: 2 × M5 screws + 2 × 5 mm holes (for carrier coupling)
• Ground Connections: 32 × M5 screws
• Approvals: CE; UL pending

Core Features

• Rugged carrier assembly for mounting up to two IOTA-R24 redundant IO Termination Assemblies
• Supports up to three IOTA-NR24 non-redundant IO Termination Assemblies
• Integrated power rails (+24V and 0V) with M5 connection points
• Integrated ground rail with 32 × M5 ground connection screws
• Power rails of two MCAR-02 carriers can be coupled using M5 screws through 5 mm holes
• Four mounting holes (use screws with diameter < 5.5 mm)
• Includes cable carrier assembly (CCA), metal profile, and plastic cover plates

Applications

• Safety Manager RIO system mounting infrastructure
• Process control and safety instrumented systems (SIS)
• Industrial automation rack mounting
• Oil and gas, chemical, and power generation facilities

FAQ

Q: How many IOTA modules can one FC-MCAR-02 carry?
A: The MCAR-02 can carry two IOTA-R24 (redundant) assemblies or three IOTA-NR24 (non-redundant) units.

Q: Can multiple MCAR-02 carriers be coupled together?
A: Yes. The power rails of two MCAR-02 carriers can be coupled using two M5 screws to connect the power rails of the top carrier with the bottom carrier.

Q: What is the maximum current capacity of the power rails?
A: The supply rail current is rated for a maximum of 40 A.

Installation Guide

1. Mount the FC-MCAR-02 on a flat surface using four mounting screws (diameter < 5.5 mm).
2. Connect 24 V DC power to the power rails using M5 screws.
3. Mount IOTA-R24 assemblies using ten ground screws and two power screws (24V and COM) each.
4. Mount IOTA-NR24 units using eight ground screws and two power screws (24V and COM) each.
5. If coupling multiple carriers, connect power rails using M5 screws through the 5 mm coupling holes.
6. Verify all ground connections using the 32 × M5 ground rail screws.

Selection Tips

• For 18-inch mounting applications, consider FC-MCAR-01 instead.
• For 36-inch applications with different mounting requirements, consider FC-MCAR-03.
• Verify IOTA module type (redundant vs. non-redundant) before planning carrier capacity.
• Ensure adequate ventilation for -40°C to +70°C operating range compliance.