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Siemens 3RT1054-1XB46-0LA2 115A PLC Contactor

Siemens 3RT1054-1XB46-0LA2 115A 3-pole power contactor with 24V DC coil & PLC input.

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ManufacturerSiemens

Part number3RT1054-1XB46-0LA2

Type Power Contactor

Poles 3-pole

AC-3e/AC-3 Rating 115 A

Power Rating 55 kW / 400 V

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115A current rating 55kW power handling 24V DC coil PLC compatible input 3-pole configuration 2 NO + 2 NC auxiliary contacts

Product description

The Siemens 3RT1054-1XB46-0LA2 is a specialized 3-pole power contactor designed for AC-3e/AC-3 applications at 115 Amps and 55 kW (400 V). This model features a 24 VDC coil (Uc) and a PLC input for direct integration with programmable logic controllers. It includes 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts. Main circuit connections are via box terminals, with screw terminals for control and auxiliary circuits.

This contactor is ideal for automated systems and machinery controlled by PLCs, commonly found in manufacturing, process control, and robotics where precise electronic control is needed.

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Technical specifications

Type	Power Contactor
Poles	3-pole
AC-3e/AC-3 Rating	115 A
Power Rating	55 kW / 400 V
Coil Voltage	24 V DC
PLC Input	Yes (24-110 V DC)
Auxiliary Contacts	2 NO + 2 NC
Main Circuit Terminals	Box terminal
Control Circuit Terminals	Screw terminal
Series	SIRIUS 3RT1

Common applications

PLC controlled systems

Automated manufacturing

Industrial robotics

Process control

Machine automation

Assembly lines

Compatible systems

Designed for use with Siemens LOGO!, S7-1200, S7-1500, and other PLCs with 24V DC outputs.

Also known as

SIRIUS 3RT1054-1XB46-0LA2 Siemens PLC Contactor

Replaces / compatible with

Designed for direct integration into PLC control systems, replacing standard contactors where a PLC interface is required.

Technical note

Expert tip

The integrated electronic drive with PLC input simplifies wiring and reduces the need for external interface relays in automated systems.

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Frequently asked questions

What is the PLC input voltage range for the Siemens 3RT1054-1XB46-0LA2?

The Siemens 3RT1054-1XB46-0LA2 features a PLC input that can handle a range of 24-110 V DC, in addition to its 24 V DC coil. This allows for flexible integration with various PLC output modules.