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Siemens 3RK1303-6ES84-3AA3 — Remote I/O & Fieldbus Modules

Siemens 3RK1303-6ES84-3AA3 Reversing Starter, 4 A AC-3, IP65

MPN3RK1303-6ES84-3AA3

Siemens SIRIUS 3RK13 solid-state reversing starter, 3RK1303-6ES84-3AA3, 4 A AC-3 at 400 V, 100 kA SCCR, IP65, PROFIBUS DP.

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

Specifications

3RK1303-6ES84-3AA3 — Identification
ParameterValue
Product designreversing starter
3RK1303-6ES84-3AA3 — Communication
ParameterValue
PROFIBUS DP supportYes
PROFINET supportNo
AS-Interface supportNo
3RK1303-6ES84-3AA3 — I/O
ParameterValue
Digital inputs4
Digital input signals2
Digital output signals0
Digital inputs parameterizableYes
Digital outputs parameterizableNo
3RK1303-6ES84-3AA3 — Electrical
ParameterValue
Rated value (DC)20.4 ... 28.8 V
Control supply voltage typeDC
Voltage typeDC
Operating Voltage Rated Value400 ... 500 V
Number Of Poles For Main Current Circuit3
3RK1303-6ES84-3AA3 — Environmental
ParameterValue
Ingress protection (IP)IP65
Operating temperature range-20 ... +40 °C
3RK1303-6ES84-3AA3 — Mechanical
ParameterValue
Width130 mm
Depth125 mm
Height250 mm
3RK1303-6ES84-3AA3 — Specifications
ParameterValue
At 400 V rated value100 kA
At AC-3 at 400 V rated value4 A
Type Of The Motor Protectionfull motor protection

Product details

The Siemens 3RK1303-6ES84-3AA3 is a solid-state reversing starter in the SIRIUS 3RK13 family, designed for motor control in industrial automation.

This starter communicates via PROFIBUS DP, not PROFINET, so it integrates into existing DP networks — useful for legacy line architectures or where deterministic fieldbus cycles are preferred. It provides 4 digital inputs, 2 of which are on M12 sockets for sensor feedback, and 0 digital outputs. The digital inputs are parameterizable, so you can configure them for start/stop, reversing commands, or interlock signals through the bus.

Protection and Environmental

Full motor protection is integrated, with solid-state switching contacts that eliminate arcing wear. Short-circuit protection is fuse-based, which is typical for solid-state starters to handle fault currents up to 100 kA.

For a BOM line requiring this exact code, the supply posture is quoted to order — specify the part into your design with confidence that it remains a supported, catalogued item.

Frequently asked questions

What is the key rating for motor switching?

It is rated 4 A at AC-3 duty at 400 V, which is the motor-load switching current. This determines the maximum induction motor size it can reverse — roughly 2.2 kW at 400 V three-phase.

Does this starter support PROFINET?

No, it supports PROFIBUS DP only. For PROFINET connectivity, you would need a different variant in the 3RK13 family.

What protection class does the enclosure have?

IP65, meaning it is dust-tight and protected against water jets from any direction. This allows mounting in washdown or outdoor environments without an additional enclosure.

What is the short-circuit current rating?

100 kA at 400 V. This high SCCR means the starter can be installed on panels with high fault current availability without requiring upstream current-limiting fuses.

MPN
3RK1303-6ES84-3AA3