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Siemens 3RK4320-5JQ64-0BA3 — Motor Starters

Siemens 3RK4320-5JQ64-0BA3 SIRIUS Motor Starter, 4 A

MPN3RK4320-5JQ64-0BA3

Siemens SIRIUS 3RK4320-5JQ64-0BA3 motor starter MCU for AS-Interface, direct starter, 4 A AC-3 at 400 V, Class 10, IP54, 205 x 290 x 215 mm.

Siemens 3RK4320-5JQ64-0BA3 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RK4320-5JQ64-0BA3 — Identification
ParameterValue
Product designationmotor starter MCU for AS-Interface
Main circuit poles3
BrandSIRIUS
Product design / constructiondirect starter
Reference designation (IEC 81346-2)Q
3RK4320-5JQ64-0BA3 — Protection & Tripping
ParameterValue
Trip classCLASS 10
Overload release setting range (current)1 ... 4 A
Duty / utilization type (IEC 60947-6-2)1
3RK4320-5JQ64-0BA3 — Contacts & Control
ParameterValue
Switching contact typesolid-state
3RK4320-5JQ64-0BA3 — Communication
ParameterValue
AS-Interface protocol supportYes
3RK4320-5JQ64-0BA3 — Mechanical & Connection
ParameterValue
Main circuit connection typescrew-type terminals
Mounting position+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface
Width290 mm
Height215 mm
Depth205 mm

Product details

Active production, AS-Interface motor starter

The 3RK4320-5JQ64-0BA3: This unit communicates over AS-Interface, with two digital inputs and an integrated motor brake output supporting brake control at 400 V AC. The control supply is 20.4...26.4 V DC, and the main operating voltage range is 340...460 V at 50/60 Hz. For a commissioning engineer, the AS-Interface address is assigned via the bus master; the two inputs can be mapped to start/stop or interlock signals without additional wiring back to a remote I/O rack.

Panel fit and environmental limits

The enclosure measures 205 mm deep, 290 mm wide, and 215 mm high, with IP54 protection — suitable for control cabinets in dry indoor industrial environments where dust and splashing water are occasional, not continuous washdown.

Frequently asked questions

What is 3RK4320-5JQ64-0BA3's listed depth (205 mm) on this component line?

The depth is 205 mm, with a width of 290 mm and height of 215 mm. These dimensions include the enclosure for the AS-Interface motor starter unit.

Will 3RK4320-5JQ64-0BA3 drop into a panel that was specified around 6ES7517-3FP00-0AB0 without rewiring?

No — the 6ES7517-3FP00-0AB0 is a Siemens S7-1500 CPU with a completely different form factor, mounting rail, and wiring scheme. The 3RK4320-5JQ64-0BA3 is an AS-Interface motor starter with a 205 x 290 x 215 mm enclosure and requires AS-Interface bus cabling plus motor power wiring. There is no direct panel drop-in compatibility between the two.

MPN
3RK4320-5JQ64-0BA3