AS-i Compact Reversing Starter for Distributed Motor Control
The Siemens 3RK1322-0DS02-1AA1 is an AS-Interface compact reversing starter from the SIRIUS family, designed for distributed motor control in IP65-rated enclosures — meaning it lives directly on the machine frame, not inside a central cabinet. Rated at 0.09 kW in AC-3 duty at 400 V, it handles reversing motor loads like conveyor drives, small pumps, or valve actuators that need forward/reverse switching without a separate contactor pair. The setting range of 0.22–0.32 A (bimetal overload protection) means this unit is sized for a specific motor FLA band — verify your motor's full-load amps fall within that window before committing the BOM line.
Fieldbus Integration and I/O
AS-Interface protocol is onboard, so this starter talks directly to the AS-i master without a separate gateway module — the bus cable carries both power and communication to the unit. Two integrated inputs are included for local sensors (e.g., limit switches or position feedback), reducing the need for separate I/O blocks at the machine. The 9-pole motor outgoing feeder and 9-pole power connection use tab terminals for the main current circuit — plan your cable termination method accordingly.
Brake Output and Breaking Capacity
A motor brake output (24 V DC / 3 A) is integrated, so holding brakes on vertical-axis motors can be controlled directly from the starter without an external relay. The maximum short-circuit breaking capacity (Icu) of 50,000 A at 400 V means this unit can safely interrupt fault currents up to that level — important for SCCR compliance on the machine nameplate.
Lifecycle and Sourcing
This part is in the current lifecycle stage — it remains an active catalog item from Siemens, not subject to phase-out or last-time-buy as of the latest manufacturer records.