Siemens 3RT2028-1AB04

AC-3 Power Contactors, 38A, 18.5kW/400V, 2NO+2NC, 24V AC 50Hz, 3-Pole, SZ S0 Screw Terminal Removable Auxiliary Switch

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Siemens 3RT2028-1AB04 AC-3 Power Contactors, 38A, 18.5kW/400V, 2NO+2NC, 24V AC 50Hz, 3-Pole, SZ S0 Screw Terminal Removable Auxiliary Switch — Contactors & Relays
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Siemens 3RT2028-1AB04 AC-3 Power Contactors, 38A, 18.5kW/400V, 2NO+2NC, 24V AC 50Hz, 3-Pole, SZ S0 Screw Terminal Removable Auxiliary Switch — Contactors & Relays
Siemens 3RT2028-1AB04 AC-3 Power Contactors, 38A, 18.5kW/400V, 2NO+2NC, 24V AC 50Hz, 3-Pole, SZ S0 Screw Terminal Removable Auxiliary Switch — Contactors & Relays
Siemens 3RT2028-1AB04 AC-3 Power Contactors, 38A, 18.5kW/400V, 2NO+2NC, 24V AC 50Hz, 3-Pole, SZ S0 Screw Terminal Removable Auxiliary Switch — Contactors & Relays

Product Description

RoHS CompliantLifecycle Status:

The AC-3 Power Contactors from Siemens are a reliable solution for high performance industrial applications. These contactors feature a rating of 38A and 18.5kW/400V, making them suitable for handling heavy duty loads. They come with 2NO+2NC terminals, ensuring efficient power distribution.

The AC-3 Power Contactors are designed to operate at 24V AC 50Hz and have a 3-pole design. This makes them versatile and adaptable for various industrial applications. The SZ S0 Screw Terminal Removable Auxiliary Switch adds an extra layer of convenience, allowing for easy customization.

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Offer details

Offer from:
Trusted supplier — Netherlands, member since 2023, 5–9 employees 
Availability:
4 pcs.
In-Stock
Updated at: 16-09-2026
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
Rated operation power NEMA
18.38746875 kW
Rated operation power at AC-3, 400 V
18.5 kW
Rated operation current Ie at AC-1, 400 V
50 A
Rated operation current Ie at AC-3, 400 V
38 A

Available Offers

(3)
ConditionAvailabilitySupplierWarrantyAction
Siemens 3RT2028-1AB04
Condition
New Surplus
Availability
4 pcs.
In-Stock
Updated at: 16-09-2026
Supplier
NetherlandsTrusted supplier — member since 2023, 5–9 employees 
Warranty
Not specified
Siemens 3RT2028-1AB04
Condition
New Factory Sealed
Availability
On requestLead time: 5 days
Supplier
GermanyTrusted supplier — member since 2024 
Warranty
Not specified
Siemens 3RT2028-1AB04
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 3RT2028-1AB04, 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: 16-09-2026

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