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Siemens 3RT2046-1SB30 Contactor - 21-33V AC/DC, F-PLC-IN

Siemens 3RT2046-1SB30 95A 3-pole contactor with 1NC aux for PLC.

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ManufacturerSiemens

Part number3RT2046-1SB30

Type Power Contactor

Poles 3

AC-3e/AC-3 Rating 95A

Power 45 kW @ 400V

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AC-3e/AC-3 rating 95A current rating 21-33V AC/DC coil Integrated varistor 1 NC auxiliary contact Size S3 F-PLC-IN for PLC control

Product description

The Siemens 3RT2046-1SB30 is a 3-pole power contactor rated for AC-3e/AC-3 applications, handling 95 Amps and 45 kW at 400 Volts. It features a 21-33 Volt AC/DC coil with an integrated varistor for surge suppression. This Size S3 contactor includes 1 Normally Closed (NC) auxiliary contact and utilizes screw terminals. The 'F-PLC-IN' designation indicates suitability for direct PLC input control.

This contactor is designed for direct integration with PLC control systems, offering reliable switching for industrial automation, process control, and machine building where specific feedback signals are required. The wide AC/DC coil voltage and integrated varistor add to its versatility and protection.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RT2046-1SB30. Source your automation components from Stanlo for quality and value.

Technical specifications

Type	Power Contactor
Poles	3
AC-3e/AC-3 Rating	95A
Power	45 kW @ 400V
Coil Voltage	21-33V AC/DC
Auxiliary Contacts	1 NC
Integrated Varistor	Yes
Terminal Type	Screw
Size	S3
PLC Input Feature	F-PLC-IN

Common applications

PLC controlled machinery

Industrial automation

Process control

Automation panels

Machine tools

Robotics

Compatible systems

PLCs with 21-33V AC/DC outputs Automation control systems Industrial machinery Robotics controllers

Also known as

Siemens 3RT2046-1SB30 Contactor 3RT2046 PLC Contactor Siemens 1NC Aux Contactor S3 Contactor F-PLC-IN

Replaces / compatible with

Designed for applications requiring a contactor with a single NC auxiliary contact for PLC feedback and compatible with PLC output voltages in the 21-33V AC/DC range.

Technical note

Expert tip

The 1 NC auxiliary contact on the 3RT2046-1SB30 is ideal for signaling the off-state of the contactor back to a PLC, serving as a crucial interlock or status indicator.

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Frequently asked questions

What does the 'F-PLC-IN' designation mean on the Siemens 3RT2046-1SB30?

The 'F-PLC-IN' designation on the Siemens 3RT2046-1SB30 indicates that this contactor is specifically designed for direct input into Programmable Logic Controllers (PLCs). It features a coil voltage range compatible with common PLC outputs and often includes integrated surge suppression.