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Siemens 3RK4320-5JQ61-1BA2 — Motor Starters

Siemens 3RK4320-5JQ61-1BA2 SIRIUS Motor Starter, CLASS 10

MPN3RK4320-5JQ61-1BA2

Siemens SIRIUS 3RK4320-5JQ61-1BA2, motor starter MCU for AS-Interface, reversing starter, solid-state motor protection, CLASS 10, 4 A at AC-3 400 V, DC control supply 20.4–26.4 V, IP54.

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

Specifications

3RK4320-5JQ61-1BA2 — Identification
ParameterValue
Product designationmotor starter MCU for AS-Interface
Main circuit poles3
BrandSIRIUS
Product design / constructionreversing starter
Reference designation (IEC 81346-2)Q
3RK4320-5JQ61-1BA2 — Protection & Tripping
ParameterValue
Trip classCLASS 10
Overload release setting range (current)1 ... 4 A
Duty / utilization type (IEC 60947-6-2)1
3RK4320-5JQ61-1BA2 — Contacts & Control
ParameterValue
Switching contact typesolid-state
3RK4320-5JQ61-1BA2 — Communication
ParameterValue
AS-Interface protocol supportYes
3RK4320-5JQ61-1BA2 — 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

Rated 4 A at AC-3 duty at 400 V, this CLASS 10 starter handles reversing motor loads up to that current — the trip class means it will open on overload within 10 seconds at 7.2× the set current, matching standard induction motor starting profiles. It operates on a 340–460 V AC motor circuit with a separate 20.4–26.4 V DC control supply, drawing power from the AS-Interface bus for communication and digital inputs. The IP54 enclosure means it's protected against dust ingress and splashing water — suitable for installation inside control cabinets on factory floors where occasional washdown mist or dust is present, but not for direct high-pressure spray.

Mounting and integration into a panel

Dimensions of 290 mm wide × 215 mm high × 205 mm deep — plan for this footprint when laying out a multi-starter panel section. The reversing configuration means two contactor-style power paths in one housing, so adjacent cable ducting needs to accommodate both sets of power wiring. Operating ambient temperature range of -25 to +50 °C covers most unconditioned industrial enclosures; no derating needed at the lower end, but verify airflow if the panel runs near the 50 °C ceiling with multiple starters ganged.

Frequently asked questions

Does 3RK4320-5JQ61-1BA2 support AS-Interface?

Yes, the AS-Interface protocol is supported, and the unit communicates over the AS-Interface bus for control and status.

What is 3RK4320-5JQ61-1BA2's listed depth on this component line?

205 mm depth, with a width of 290 mm and height of 215 mm.

Where can I buy 3RK4320-5JQ61-1BA2?

This part is sourced to order through independent distribution channels. Availability and pricing are confirmed at quote time.

MPN
3RK4320-5JQ61-1BA2