ABB RMBA-01 Modbus Adapter Module — New in Box

P/N: RMBA-01NEW · SEALED

$299.99

In stock — 2 units· ships fast

Request a quote — volume & international

30-day warranty included

Every unit is function-tested before shipping and covered for 30 days from delivery. DOA units replaced at our cost.

Ships from Goleta, CA

Ships to 30+ countries

100% positive feedback

3,200+ items sold

Key specifications

Platform Modbus fieldbus adapter for ABB ACS800 drives (RMIO option slot or AIMA-01 mounting)

Protocol Modbus RTU — drive operates as slave to any Modbus-capable master

Bus interface Galvanically isolated RS-485, multi-drop, max bus length 1,200 m

Network size 247 stations including repeaters (31 stations + 1 repeater per segment)

Transfer rates 600 to 19,200 bit/s, asynchronous half-duplex

Connectors 38-pin parallel bus connector; detachable 4-pole terminal block (max 1.5 mm²)

Termination Built-in active termination, DIP-switch selectable

Power / protection Max 140 mA at 5 V, supplied by the drive; IP20

Item specifics

Brand ABB

Model RMBA-01

The ABB RMBA-01 is the Modbus fieldbus option module for ABB ACS800-series drives: it seats in an option slot on the drive's RMIO control board (or mounts remotely on an AIMA-01 module adapter) and joins the drive to a Modbus RTU network as a slave over galvanically isolated RS-485. The multi-drop link scales to 247 stations including repeaters — 31 stations plus a repeater per segment — over bus runs up to 1,200 m at 600 bit/s to 19.2 kbit/s, with built-in active termination selected by DIP switch. It draws just 140 mA at 5 V from the drive and is configured from the drive's control panel.

This listing is a new-in-box unit: the original carton with the printed RMBA-01 user's manual, exactly as photographed. The detachable 4-pole terminal block visible in the photos takes the shielded twisted-pair bus cable (Belden 9841/9842 or equivalent), alongside the 38-pin parallel bus connector that seats the module in the drive.

Condition: New, sealed, as listed. The photographs are of the actual unit you'll receive, covered by the Network Orbitz 30-Day Warranty.

Orders are professionally packed and dispatched fast, fully tracked. Heavy items ship on protected freight. Every unit carries our 30-day warranty from delivery.