Siemens 3RV2042-4KB10

Circuit Breaker Size S3 for Motor Protection, Class 20

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Siemens 3RV2042-4KB10 Circuit Breaker Size S3 for Motor Protection, Class 20 — Circuit Breakers & Fuses
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Siemens 3RV2042-4KB10 Circuit Breaker Size S3 for Motor Protection, Class 20 — Circuit Breakers & Fuses
Siemens 3RV2042-4KB10 Circuit Breaker Size S3 for Motor Protection, Class 20 — Circuit Breakers & Fuses
Siemens 3RV2042-4KB10 Circuit Breaker Size S3 for Motor Protection, Class 20 — Circuit Breakers & Fuses

Product Description

Lifecycle Status:

The Siemens Circuit Breaker Size S3 is a reliable solution designed for motor protection. With a Class 20 rating, it offers robust performance and increased breaking capacity of up to 100kA. The A-release ranges from 57 to 75A and the N-release from 975A, ensuring versatility in various applications. This circuit breaker features screw terminal connections for easy installation and maintenance. Its enhanced switching capacity makes it an ideal choice for high-demand environments.

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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
Pole number
3
Manner of using
Toggle
Protection type IP
IP20
Release system
magnetic
Sensitive to phase failure
Connection type
Screw connection

Available Offers

(4)
ConditionAvailabilitySupplierWarrantyAction
Siemens 3RV2042-4KB10
Condition
New Surplus
Availability
On requestLead time: 21 days
Supplier
RomaniaTrusted supplier — member since 2023, 1–4 employees 
Warranty
Not specified
Siemens 3RV2042-4KB10
Condition
New Factory Sealed
Availability
5 pcs.
In-Stock
Updated at: 19-09-2026
Supplier
PolandTrusted supplier — member since 2023, 50–99 employees 
Warranty
24 months
Siemens 3RV2042-4KB10
Condition
New Factory Sealed
Availability
On requestLead time: 5 days
Supplier
GermanyTrusted supplier — member since 2024 
Warranty
Not specified
Siemens 3RV2042-4KB10
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 3RV2042-4KB10, including specifications and features.

Download Data Sheet
TraceParts

CAD Models

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

Download CAD Model

Product data updated: 22-08-2026

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