Siemens 3SK1121-2CB41

SIRIUS Safety Relay Basic Unit Advanced Series with Time Delay 0.05-3s

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Siemens 3SK1121-2CB41 SIRIUS Safety Relay Basic Unit Advanced Series with Time Delay 0.05-3s — Contactors & Relays
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Product Description

RoHS CompliantLifecycle Status:

The SIRIUS safety relay is a part of the advanced series, designed to provide reliable and efficient protection in various industrial applications. It features a time delay function ranging from 0.05 to 3 seconds, enabling circuits with two instantaneous no contacts and two delayed no contacts. This unit operates at a voltage of 24 V DC and is equipped with spring-type terminals for easy push-in connections.

The relay is designed to ensure safety in industrial environments by providing a time delay function that allows for controlled shutdowns in case of overload or fault conditions. The two instantaneous no contacts allow for immediate disconnection in case of an emergency, while the two delayed no contacts provide a buffer period before disconnection.

The SIRIUS safety relay is compatible with various industrial applications and is suitable for use in environments where reliable protection is crucial. Its advanced features make it a valuable addition to any industrial automation system.

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Offer details

Best offer from:
Trusted supplier — Germany, member since 2024
Availability:
3 pcs.
In-Stock
Updated at: 04-09-2026
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
Model
Other
EFDE0031
Release-delay
0.05 min
With start input
With feedback circuit
With muting function

Available Offers

(7)
3SK1121-2CB41 Siemens, Contactors & Relays

Siemens

Available:
1 pc.
On Request
Updated at: 22-08-2026
Offer from:
Trusted supplier — Romania, member since 2023, 1–4 employees
3SK1121-2CB41 Siemens, Contactors & Relays

Siemens

Available:
5 pcs.
In-Stock
Updated at: 05-09-2026
Offer from:
Trusted supplier — Poland, member since 2023, 50–99 employees
Warranty:
24 months
3SK1121-2CB41 Siemens, Contactors & Relays

Siemens

Available:
1 pc.
In-Stock
Updated at: 20-08-2026
Offer from:
Trusted supplier — Poland, member since 2023, 20–49 employees
Warranty:
12 months

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Documents

Data Sheet

Datasheet for Siemens 3SK1121-2CB41, 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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