Honeywell 900R12R-0200 12-Slot I/O Rack with Redundant Power

Product Overview

The Honeywell 900R12R-0200 is a 12-slot I/O rack with redundant power support designed for the ControlEdge HC900 controller family. This rugged rack chassis accommodates up to 12 I/O modules plus power supplies and scanner modules, providing a high-density platform for large-scale process automation. With dual power supply slots for true redundancy and support for insertion/removal under power (IRUP), the 900R12R-0200 delivers the reliability and flexibility required for critical industrial control applications.

Key Features

• 12 I/O module slots for high-density system expansion
• Redundant power supply support — dual power slots for fault-tolerant operation
• IRUP capable — supports insertion and removal of I/O modules under power
• Compatible with all HC900 I/O modules — analog, digital, universal, relay, and communication
• Rugged industrial construction for harsh environments
• DIN rail or panel mounting options for flexible installation
• Passive cooling design — no fans required

Technical Specifications

• Model: 900R12R-0200
• Product Type: 12-Slot I/O Rack with Redundant Power
• Series: ControlEdge HC900
• Number of Slots: 12 I/O slots + power supply slots
• Power Support: Redundant (dual power supply capability)
• Dimensions (H × W × D): 137 × 571.5 × 151.7 mm (5.4" × 22.5" × 6.0")
• Weight: Approx. 4.07 kg (9.0 lbs)
• Mounting: DIN rail or panel mount (4-screw backplate)
• Operating Temperature: 0°C to +60°C
• Storage Temperature: −40°C to +85°C
• Humidity: 5% to 95% RH (non-condensing)
• Construction: High-grade aluminum
• Certifications: CE, UL, CSA

Typical Applications

• Large-scale process control and DCS architectures
• Safety instrumented systems (SIS) requiring high I/O density
• Chemical and petrochemical plant automation
• Power generation and distribution control
• Oil & gas production and refining

FAQ

Installation Guide

1. Mounting: Secure the rack to a flat panel or DIN rail using the integrated mounting clips or 4-screw backplate. Ensure adequate clearance for module insertion and airflow.
2. Power Supply Installation: Insert two compatible power supply modules (e.g., 900P01-0201 or 900P24-0501) into the dedicated power slots for redundant operation.
3. I/O Scanner: Install the I/O scanner module (900S75-0360-00 or 900S75S-0360-00 for safety) in the designated scanner slot.
4. Module Insertion: Starting from the left, insert I/O modules into available slots. Press firmly until the retaining clips engage and the module is fully seated on the backplane.
5. Grounding: Connect the rack chassis ground terminal to the cabinet earth bus using a minimum 4 mm² grounding conductor.
6. Power Verification: Apply power and verify all module status LEDs indicate healthy operation. Check backplane voltage levels using the programming software.

Selection Tips

• Choose the 900R12R-0200 for large systems requiring 12 I/O slots with redundant power capability.
• For smaller systems, consider the 900R08R-0200 (8-slot redundant) or 900R04-0300 (4-slot).
• If redundancy is not required, the 900R12-0200 non-redundant version offers cost savings.
• Calculate total backplane power consumption across all planned modules to size power supplies correctly.
• Plan module spacing for heat dissipation — high-density analog modules may require adjacent empty slots in extreme temperatures.