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Siemens 3RK1322-0BS12-1AA4 — Remote I/O & Fieldbus Modules

Siemens 3RK1322-0BS12-1AA4 AS-i Reversing Starter, 2.2 kW, I

MPN3RK1322-0BS12-1AA4

Siemens 3RK1 series reversing starter, 3RK1322-0BS12-1AA4, AS-Interface, solid-state motor protection, 2–5.95 A setting range, 2.2 kW at 400 V AC-3, IP65 enclosure.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RK1322-0BS12-1AA4 — Identification
ParameterValue
Product designreversing starter
3RK1322-0BS12-1AA4 — Communication
ParameterValue
PROFIBUS DP supportNo
AS-Interface supportYes
Bus communicationYes
3RK1322-0BS12-1AA4 — Electrical
ParameterValue
Voltage typeDC
3RK1322-0BS12-1AA4 — Environmental
ParameterValue
Ingress protection (IP)IP65
Ambient operating temperature-25 ... +55 °C
3RK1322-0BS12-1AA4 — Mechanical
ParameterValue
Width120 mm
Depth190 mm
Height270 mm
3RK1322-0BS12-1AA4 — Specifications
ParameterValue
Type Of The Motor Protectionsolid-state

Product details

What this reversing starter does in the line

The Siemens 3RK1322-0BS12-1AA4 is a reversing starter with solid-state switching contacts and solid-state motor protection, built into an IP65 enclosure for direct machine-mount or washdown-area deployment. The setting range of 2 to 5.95 A covers small three-phase motors in conveyors, pumps, and valve actuators where forward/reverse cycling is frequent.

The 2.2 kW AC-3 rating at 400 V is the motor-switching current limit — not the same as a resistive AC-1 rating. The minimum setting of 0.75 kW means it can also protect smaller motors without over-rating the overload curve.

AS-Interface and connectivity

This starter communicates via AS-Interface protocol — not PROFIBUS DP. It includes bus communication capability and a motor brake output rated for 500 V DC / 1 A for internally supplied brakes. Main circuit connection uses tab terminals — expect a fast plug-in connection rather than screw-clamp wiring. The 9-pole power energy connection carries both motor power and the brake circuit in one harness.

Frequently asked questions

What is the current setting range and what motor sizes does it cover?

The setting range is 2 to 5.95 A, covering motor ratings from 0.75 kW up to 2.2 kW at 400 V AC-3.

What protection does the solid-state motor protection provide?

Solid-state motor protection means the overload curve is electronic rather than bimetallic — no thermal fatigue, consistent trip performance, and no ambient-temperature compensation needed within the rated -25 to +55 °C range.

Can this starter be used in washdown environments?

Yes, the IP65 rating allows direct mounting in areas exposed to dust and low-pressure water jets, such as washdown zones in food processing or packaging lines.

What documentation is available for compliance?

The part carries an equipment marking per DIN EN 61346-2 (function designation Q). Compliance documentation (CE, UL, etc.) would be part of the manufacturer's standard declaration package — specify requirements at RFQ.

MPN
3RK1322-0BS12-1AA4