Original ABB RMU610 mounting base for CRBX01 redundancy module, for Symphony Plus HN800 redundant I/O system spare part.

Product Overview

RMU610 (2VAA008425R1) is dedicated mounting base for ABB CRBX01 redundancy module under Symphony Plus HN800 I/O system. It provides mechanical fixation, HN800 bus signal routing and 24VDC power distribution for CRBX01 redundancy unit, builds hardware foundation for redundant‑bus switching architecture. It realizes stable electrical connection between redundancy module and HN800 back‑end bus, ensures seamless bus switching during single‑point fault. Compact DIN‑rail installation design, IP20 cabinet‑grade hardware. Widely used as maintenance spare part for power‑plant, petrochemical high‑availability Symphony Plus DCS control cabinets.

Key Features

• Dedicated mounting base for CRBX01 redundancy module, provides mechanical locking and positioning
• Implements HN800 redundant bus signal routing and 24VDC power distribution for CRBX01
• Guarantees stable electrical contact during redundant bus switching operation
• Supports hot‑swap replacement of CRBX01 module without shutting down whole I/O segment
• Industrial‑grade circuit design, resists cabinet electromagnetic interference and vibration

• Standard 35 mm DIN‑rail mounting, compact dimension saves cabinet installation space

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Technical Specifications

• Brand: ABB
• Model: RMU610, 2VAA008425R1
• Module Type: Redundancy Module Mounting Base
• System Platform: Symphony Plus HN800 I/O System
• Power Supply: 24VDC
• Weight: Approx 0.11kg
• Operating Temp: ‑20℃ ~ +60℃
• Storage Temp: ‑40℃ ~ +85℃
• Humidity: 5‑95% non‑condensing
• Protection Class: IP20

• Installation: 35 mm DIN‑rail mounting

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Compatibility

Matches ABB CRBX01 redundancy module and HN800 I/O bus system. Bus contact inspection and redundant switching simulation test required after replacement.