Siemens SIRIUS 3SK1 4 Auxiliary Contacts Safety Relay 24V dc, Single Channel 4 Safety Contacts

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£181.43

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£217.72

(inc. VAT)

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RS Stock No.:
784-5819
Distrelec Article No.:
304-11-451
Mfr. Part No.:
3SK1121-2AB40
Brand:
Siemens
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Brand

Siemens

Supply Voltage

24V dc

Number of Channels

1

Safety Contacts

4

Function

Safety Monitoring

Auxiliary Contacts

4

Reset Method

Automatic, Monitored

Range

SIRIUS

Safety Category ISO 13849-1

4

PL ISO 13849-1

e

SIL IEC 61508

3

Terminal Type

Cage Clamp

Standards Met

RoHS Compliant

Configurable

Yes

Width

22.5mm

Series

3SK1

Safety Category

3

Depth

122mm

Length

100mm

Performance Level

e

COO (Country of Origin):
DE

Siemens Safety Relay, Push-In Terminals, 100mm Height - SIRIUS Series - 3SK1121-2AB40


Use this safety relay from Siemens to monitor your equipment and avoid electrical hazards. It triggers a shutdown response if a dangerous situation is detected, helping to prevent injury and machine damage. Thanks to its compact dimensions of 100 (H) x 22.5 (W) x 121.6mm (D), it takes up minimal space in your setup. A broad operating temperature range between -25°C and +60°C means you can rely on it to operate safely, even in demanding industrial environments. As this unit runs with a low power loss of 2W, it's an energy-efficient choice. You'll find it commonly used in the oil and gas industries.

Features & Benefits


• Surge voltage resistance of 4kV means it can resist sudden spikes in voltage
• IP20 rating indicates it's touch-proof and protected against objects larger than 12mm
• Robust mechanical lifespan of 10 million cycles for reliable long-term performance
• Can be mounted in any position for flexible installation

What's the supply voltage of this device?


This device has a supply voltage of 24V DC, so its a practical choice for use in low-voltage applications.

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