Siemens 3RT2037-1KB44

AC3 Contact Relay: 30kW/400V, 2NO+2NC, 24VDC with Varistor

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Siemens 3RT2037-1KB44 AC3 Contact Relay: 30kW/400V, 2NO+2NC, 24VDC with Varistor — Contactors & Relays
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Siemens 3RT2037-1KB44 AC3 Contact Relay: 30kW/400V, 2NO+2NC, 24VDC with Varistor — Contactors & Relays
Siemens 3RT2037-1KB44 AC3 Contact Relay: 30kW/400V, 2NO+2NC, 24VDC with Varistor — Contactors & Relays
Siemens 3RT2037-1KB44 AC3 Contact Relay: 30kW/400V, 2NO+2NC, 24VDC with Varistor — Contactors & Relays

Product Description

RoHS CompliantLifecycle Status:

The AC3 Contact Relay is a robust and reliable solution designed to handle high power applications. With a rating of 65A, 30kW / 400V, it offers superior performance in industrial environments. The relay features 2 NO (Normally Open) and 2 NC (Normally Closed) contacts, ensuring versatility in various control systems. It operates at a voltage of 24 V DC, providing efficient and reliable operation. Equipped with a varistor for enhanced protection, this 3-pole relay is suitable for use with PLC outputs.

The AC3 Contact Relay is available in size S2, featuring screw terminals that are compatible with 2A PLC outputs. This ensures seamless integration into existing control systems and enhances the overall efficiency of your industrial operations. With its high-quality construction and advanced features, this contact relay is a reliable choice for demanding applications.

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Offer details

Best offer from:
Trusted supplier — Germany, member since 2026
Availability:
1 pc.
In-Stock
Updated at: 28-08-2026
Warranty:
12 months
Condition:
Used
Used - A previously used item with possible signs of cosmetic wear. It is fully operational and functions as intended, though the original packaging may be missing.
The Seller is responsible for shipping the product and invoicing

Specifications

Brand
Siemens
Modular version
Voltage type for actuating
DC
Rated operation power NEMA
36.7749375 kW
Rated control supply voltage Us at DC
24 V
Rated operation power at AC-3, 400 V
30 kW
Rated operation current Ie at AC-1, 400 V
80 A

Available Offers

(6)
3RT2037-1KB44 Siemens, Contactors & Relays

Siemens

Available:
18 pcs.
In-Stock
Updated at: 27-08-2026
Offer from:
Trusted supplier — Poland, member since 2023, 50–99 employees
Warranty:
24 months
3RT2037-1KB44 Siemens, Contactors & Relays

Siemens

Available:
4 pcs.
In-Stock
Updated at: 27-08-2026
Offer from:
Trusted supplier — Poland, member since 2023, 50–99 employees
Warranty:
3 months
3RT2037-1KB44 Siemens, Contactors & Relays

Siemens

Available:
0 pcs.
On Request
Updated at: 28-08-2026
Offer from:
Trusted supplier — Germany, member since 2024

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Documents

Data Sheet

Datasheet for Siemens 3RT2037-1KB44, including specifications and features.

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CAD Models

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