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Siemens 3RT2045-1KB40-1AA0

Name: AC3 Power Contactors, 80A, 37kW/400V, 1NO+1NC, 24VDC
Brand: Siemens
SKU: 3RT2045-1KB40-1AA0

AC3 Power Contactors, 80A, 37kW/400V, 1NO+1NC, 24VDC

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Product Description

Lifecycle Status:

The Siemens AC3 Power Contactors are robust and reliable, capable of handling high currents up to 80A. With a rating of 37kW/400V, these contactors provide efficient power distribution in demanding industrial environments.

Key Features:

1NO + 1NC configuration for versatile control and protection
24VDC operation for precise control and monitoring
3-pole design for enhanced reliability and performance
Screw terminal connections for easy installation and maintenance
Integrated varistor for surge protection

The vertical mounting position ensures optimal space utilization, making it suitable for 2A PLC outputs. The Siemens AC3 Power Contactors are designed to meet the highest standards of quality and performance in industrial automation.

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Call us at:+48 17 778 34 19

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Offer details

Offer from:: Trusted supplier — Germany, member since 2024
Availability:: 4 pcs.
In-Stock
Updated at: 15-09-2026
Warranty:: 24 months
Condition:: Refurbished

Refurbished - A refurbished item inspected, cleaned, and repaired to full working order by either the manufacturer or a certified technician. The item is in excellent condition and fully operational.

The Seller is responsible for shipping the product and invoicing

Specifications

Brand: Siemens
Connection type: Screw connection
Suitable for series installation
Min. rated control voltage Us with DC: 24 volt
Number of making contacts and main contacts: 3
Suitable for mounting onto standard rails
Rated operational power AC-1 at 400 V: 82 kilowatt

Available Offers

(4)

Condition	Availability	Supplier	Warranty
Condition Refurbished	Availability 4 pcs. In-Stock Updated at: 15-09-2026	Supplier GermanyTrusted supplier — member since 2024	Warranty 24 months
Condition New Surplus	Availability 5 pcs. In-Stock Updated at: 15-09-2026	Supplier GermanyTrusted supplier — member since 2024	Warranty 24 months
Condition New Factory Sealed	Availability On requestLead time: 5 days	Supplier GermanyTrusted supplier — member since 2024	Warranty Not specified
Condition New Factory Sealed	Availability On requestLead time to be confirmed	Supplier ItalyTrusted supplier — member since 2021, 10–19 employees	Warranty 12 months

Offer with manufacturer lead time

Directly from the manufacturer - with a confirmed, predictable, and fully transparent delivery time.

Documents

Data Sheet

Datasheet for Siemens 3RT2045-1KB40-1AA0, including specifications and features.

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CAD Models

3D CAD model and technical drawings, ready for your design software.

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Product data updated: 15-09-2026

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