Home › Manufacturers › Siemens › 3RT2046-1KB40

Siemens

Siemens 3RT2046-1KB40 24V DC Contactor for PLC Outputs

Siemens 3RT2046-1KB40 95A 3-pole DC contactor for PLC outputs.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

In Stock — Ready to Ship

ManufacturerSiemens

Part number3RT2046-1KB40

Type Power Contactor

Poles 3

AC-3e/AC-3 Rating 95A

Power 45 kW @ 400V

Get a price for 3RT2046-1KB40

Response within 1 business hour

🛡

12-month warranty

All units tested

⚡

Same-day dispatch

Order by 2pm CST

🌐

Worldwide delivery

US, EU, Asia, Middle East

🎖

Veteran-owned

CAGE: 9NK75

24V DC coil Integrated varistor Suitable for PLC outputs 1 NO + 1 NC auxiliary contacts Size S3 AC-3e/AC-3 rated

Product description

The Siemens 3RT2046-1KB40 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 24 Volt DC coil with a 0.8-1.2* Uc range and includes an integrated varistor for surge suppression. This Size S3 contactor has 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts and screw terminals, making it suitable for PLC outputs.

This contactor is designed for applications where direct control from PLC outputs is required, such as in automated manufacturing lines, robotics, and process control systems. Its DC coil and varistor protection make it ideal for environments with sensitive electronic components.

Stanlo Automation, your veteran-owned source for surplus industrial automation parts, offers the Siemens 3RT2046-1KB40. Get reliable components at competitive prices for your automation projects.

Technical specifications

Type	Power Contactor
Poles	3
AC-3e/AC-3 Rating	95A
Power	45 kW @ 400V
Coil Voltage	24V DC
Uc Range	0.8-1.2* Uc
Auxiliary Contacts	1 NO + 1 NC
Integrated Varistor	Yes
Terminal Type	Screw
Size	S3
PLC Output Compatible	Yes

Common applications

PLC controlled systems

Automated manufacturing

Robotics

Process control

Machine control

Industrial automation

Compatible systems

Siemens S7 PLCs Allen-Bradley ControlLogix Other PLCs with 24V DC outputs Automation control systems

Also known as

Siemens 3RT2046-1KB40 Contactor 3RT2046 DC Contactor Siemens PLC Contactor S3 DC Contactor

Replaces / compatible with

Designed as a direct replacement for previous Siemens DC-coil contactors in the 3RT2 series, especially for PLC-driven applications.

Technical note

Expert tip

The integrated varistor in the 3RT2046-1KB40 provides essential transient voltage suppression, protecting sensitive PLC control circuits from inductive kickback.

What happens next?

Email confirmation

Immediate receipt acknowledgment sent to you

Account manager assigned

Confirms your part's spec and condition

Your quote delivered

Tailored to your specific requirements

Frequently asked questions

Why is the Siemens 3RT2046-1KB40 suitable for PLC outputs?

The Siemens 3RT2046-1KB40 is suitable for PLC outputs due to its 24V DC coil, which is a common output voltage for many PLCs. It also features an integrated varistor to protect the PLC from voltage spikes generated during switching.