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Siemens 3RK1325-6LS71-1AA0 — Remote I/O & Fieldbus Modules

Siemens 3RK1325-6LS71-1AA0 SIRIUS Reversing Starter, 5.5 kW

MPN3RK1325-6LS71-1AA0
NRND

Siemens SIRIUS reversing motor starter, 3RK1325-6LS71-1AA0, IP65, AS-Interface, 5.5 kW at 400 V, trip classes 5/10/15/20.

Siemens 3RK1325-6LS71-1AA0 datasheet (PDF)
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RK1325-6LS71-1AA0 — Identification
ParameterValue
Product designationMotor starters
Product designreversing starter
3RK1325-6LS71-1AA0 — Communication
ParameterValue
PROFIBUS DP supportNo
PROFINET supportNo
AS-Interface supportYes
AS-Interface supportYes
Bus communicationYes
3RK1325-6LS71-1AA0 — I/O
ParameterValue
Digital inputs4
Digital input signals4
Digital output signals1
Digital inputs parameterizableYes
Digital outputs parameterizableYes
3RK1325-6LS71-1AA0 — Electrical
ParameterValue
Rated value (DC)20.4 ... 28.8 V
Control supply voltage typeDC
Rated surge voltage6 000 V
Adjustable Current Response Value Current Of The Current-Dependent Overload Release1.5 ... 12 A
Operating Voltage Rated Value200 ... 440 V
Number Of Poles For Main Current Circuit3
3RK1325-6LS71-1AA0 — Environmental
ParameterValue
Ingress protection (IP)IP65
Operating temperature range-25 ... +55 °C
Storage temperature range-40 ... +70 °C
Shock resistance12g / 11 ms
Pollution degree3
3RK1325-6LS71-1AA0 — Mechanical
ParameterValue
Width294 mm
Depth159 mm
Height215 mm
Mounting methodscrew fixing
3RK1325-6LS71-1AA0 — Specifications
ParameterValue
At 400 V rated value5.5 kW
At AC-3 at 400 V rated value12 A
Reverse StartingYes
Type Of The Motor Protectionfull motor protection
Trip ClassCLASS 5, 10, 15, 20

Product details

The Siemens 3RK1325-6LS71-1AA0 is a SIRIUS reversing motor starter in an IP65 enclosure, designed for direct-on-line reversing of three-phase motors up to 5.5 kW at 400 V (7.5 hp at 460/480 V, 3 hp at 220/230 V). It integrates a contactor, overload relay, and reversing interlock into one package, saving panel space and wiring time on reversing applications like conveyors, hoists, and door drives.

This class of reversing starter is specified for motor loads that must run in both directions — conveyor belts, transfer stations, hoists, gate operators, and mixing vessels. The integrated reversing interlock prevents both contactors from closing simultaneously, which is a safety requirement per IEC 60947-4-1. The IP65 enclosure allows mounting directly on the machine frame rather than in a central panel, reducing field wiring runs.

Frequently asked questions

What are the key motor power ratings for this starter?

It is rated at 5.5 kW at 400 V, 5 500 W at 500 V, 3 hp at 220/230 V, and 7.5 hp at 460/480 V. These cover common European and North American motor sizes.

What trip classes does this overload relay support?

The trip class is selectable between CLASS 5, 10, 15, and 20, allowing the same starter to be used with standard motors (CLASS 10) or high-inertia loads (CLASS 20).

What communication protocol does this starter use?

It uses AS-Interface protocol for communication. Addressing is done through an M12 plug. It does not support PROFIBUS DP or PROFINET.

What is the physical size of this starter?

The dimensions are 294 mm wide, 215 mm high, and 159 mm deep. It mounts via screw fixing and can be installed vertically, horizontally, or flat.

What environmental ratings does it carry?

The enclosure is IP65 (dust-tight and protected against water jets). Operating temperature range is -25 to +55 °C, storage and transport range is -40 to +70 °C. It withstands shock at 12g / 11 ms and vibration at 7 mm / 2g.

MPN
3RK1325-6LS71-1AA0