Product Details
The Honeywell 900R08-0300, also cataloged as the 900R08 I/O Rack, operates as a dedicated hardware component for physical module mounting and backplane bus signal distribution within ControlEdge HC900 platforms. The chassis houses eight slots to accommodate digital, analog, and specialty I/O modules, routing power rails and serial data communications across the backplane. Constructed with an IP20-rated enclosure, the rack maintains mechanical alignment and electrical continuity between inserted I/O assemblies and the central system controller.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 900R08-0300 |
| Brand | Honeywell |
| Origin | United States |
| Weight | 0.2 kg |
| Dimensions | 9.2 cm x 5.5 cm x 12.8 cm |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Passive backplane rack assembly |
| Number of Slots | 8 slots |
| Compatible Modules | ControlEdge HC900 I/O modules |
| Ingress Protection | IP20 |
| Mounting Type | Panel / Rack chassis mount |
Process Control Integration & Field Instrumentation Pathways
The backplane architecture of the Honeywell 900R08-0300 rack supports high-density signal distribution, managing continuous data transfer between inserted field interface cards and the main process controller. Internal bus traces maintain signal isolation to protect low-level measuring circuits against electromagnetic interference. This enables attached analog cards to digitize 4-20 mA HART loop protocol process signals without cross-channel distortion, preserving measurement integrity across dynamic process control loops.
Frequently Asked Questions
Q: Can modules in the 900R08-0300 rack be replaced while the chassis is powered?
A: Modules supporting Removal and Insertion Under Power (RIUP) can be swapped out without removing main power from the 900R08-0300 backplane, provided system safety guidelines are followed.
Q: How does the 900R08-0300 chassis maintain electrical grounding across all 8 slots?
A: The chassis incorporates an integrated grounding bus that contacts the metallic frame of each inserted module, discharging static buildup to the primary protective earth connection.
Field Installation Guidelines
- Mount the 900R08-0300 rack securely to a flat enclosure backplate or standard mounting frame using specified fasteners.
- Connect the chassis grounding terminal directly to the cabinet protective earth (PE) bus bar using a short, low-impedance ground wire.
- Maintain minimum clearance around the top and bottom ventilation openings to allow adequate convective heat dissipation.
- Inspect all 8 backplane connector slots for dust or physical obstruction prior to inserting I/O modules.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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