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Siemens 3RT2045-1NB30

Name: AC3 Power Contactor, 37KW/400V, 1NO+1NC, 20-33V AC/DC
Brand: Siemens
SKU: 3RT2045-1NB30

AC3 Power Contactor, 37KW/400V, 1NO+1NC, 20-33V AC/DC

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Product Description

Lifecycle Status:

Introducing the AC3 Power Contactor, a robust electrical switch designed for high power applications. With a capacity of 37KW at 400V, this contactor is capable of handling substantial loads while maintaining reliable performance.

Featuring 1 normally open (NO) and 1 normally closed (NC) contacts, this contactor provides versatile control options for your electrical system. It operates on an input voltage range of 20-33V AC/DC, ensuring compatibility with a wide range of power sources.

Constructed with screw terminals, this contactor offers easy installation and maintenance. The integrated varistor ensures protection against voltage surges, safeguarding your electrical equipment from potential damage.

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Call us at:+48 17 778 34 19

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Offer details

Offer from:: Trusted supplier — Romania, member since 2023, 1–4 employees
Availability:: On requestLead time: 21 days
Warranty:: Not specified
Condition:: New Surplus

New Surplus - A new, unused, undamaged item without a manufacturer guarantee. The item may come without original packaging or in replacement packaging. If provided, the box may have been opened.

The Seller is responsible for shipping the product and invoicing

Specifications

Brand: Siemens
Modular version
Voltage type for actuating: AC/DC
Rated control supply voltage Us at DC: 20 V
Rated operation power NEMA: 44.129924999 kW
Rated operation power at AC-3, 400 V: 37 kW
Rated operation current Ie at AC-3, 400 V: 80 A

Available Offers

(4)

Condition	Availability	Supplier	Warranty
Condition New Surplus	Availability On requestLead time: 21 days	Supplier RomaniaTrusted supplier — member since 2023, 1–4 employees	Warranty Not specified
Condition New Factory Sealed	Availability 2 pcs. In-Stock Updated at: 31-10-2025	Supplier United KingdomTrusted supplier — member since 2021	Warranty Not specified
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 3RT2045-1NB30, 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: 22-08-2026

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