Honeywell 900R08R-0200 8-Slot I/O Rack with Redundant Power

Product Overview

The Honeywell 900R08R-0200 is an 8-slot I/O rack with redundant power support designed for the ControlEdge HC900 controller family. This compact yet capable chassis accommodates up to 8 I/O modules plus dual power supplies, providing a reliable platform for medium-scale process automation systems. With support for insertion/removal under power (IRUP) and rugged industrial construction, the 900R08R-0200 balances I/O density with cabinet space efficiency for demanding control applications.

Key Features

• 8 I/O module slots for medium-density system expansion
• Redundant power supply support — dual power slots for high availability
• IRUP capable — supports hot-swapping of I/O modules
• Compatible with all HC900 I/O modules — analog, digital, universal, relay, communication
• Compact footprint — ideal for space-constrained control cabinets
• DIN rail or panel mounting options
• Passive cooling — no fans required

Technical Specifications

• Model: 900R08R-0200
• Product Type: 8-Slot I/O Rack with Redundant Power
• Series: ControlEdge HC900
• Number of Slots: 8 I/O slots + redundant power supply slots
• Power Support: Redundant (dual power supply capability)
• Dimensions (H × W × D): 137 × 419 × 152 mm (5.4" × 16.5" × 6.0")
• Weight: Approx. 1.0 kg (2.2 lbs)
• Mounting: DIN rail or panel mount
• 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

• Medium-scale process control systems
• Safety instrumented systems (SIS) requiring power redundancy
• Manufacturing automation with moderate I/O counts
• Water and wastewater treatment
• Building automation and facility control

FAQ

Installation Guide

1. Mounting: Secure the rack to a DIN rail or panel. Ensure adequate clearance for module access and cable routing.
2. Power Supplies: Install two compatible power supply modules in the redundant power slots for full fault tolerance.
3. Scanner Module: Insert the I/O scanner module (900S75-0360-00) in the designated scanner slot.
4. I/O Modules: Starting from the left, insert I/O modules into available slots until fully seated.
5. Grounding: Connect the rack chassis ground to the cabinet earth bus.
6. Verification: Power on and confirm all modules are recognized in the configuration software.

Selection Tips

• Select the 900R08R-0200 for medium I/O counts (up to 8 modules) with redundant power requirement.
• For larger systems, consider the 900R12R-0200 (12-slot redundant).
• If redundancy is not needed, the 900R08-0200 offers a lower-cost alternative.
• Calculate total power consumption to ensure dual power supplies are adequately sized.
• Plan spare module slots for future expansion — leaving 1–2 slots empty simplifies upgrades.