SIEMENS 3SK1213-1AB40

Siemens SIRIUS 3SK1213-1AB40 Safety Relay

Description

The Siemens SIRIUS 3SK1213-1AB40 is a high-performance safety relay from the Advanced basic unit series. It is engineered to monitor and control safety circuits in industrial machinery, ensuring compliance with international safety standards. This unit operates on a 24V DC supply and features reliable screw-type terminals for secure wiring. Its compact design allows for efficient use of space within control cabinets.

Specifications

• Manufacturer: Siemens
• Product Series: SIRIUS 3SK1 Advanced
• Model Number: 3SK1213-1AB40
• Supply Voltage: 24V DC
• Terminal Type: Screw-type
• Instantaneous Enabling Circuits: 2 NO contacts
• Delayed Enabling Circuits: 2 NO contacts
• Signaling Circuits: 1 NC contact
• Protection Class: IP20
• Safety Integrity Level (SIL): SIL 3 (IEC 61508)
• Performance Level (PL): PL e (ISO 13849-1)

Label Info

• EAN: 4011209913806
• Uimp: 4kV
• Ui: 300V

Application

This safety relay is ideal for a variety of safety applications, including emergency stop pushbuttons, safety door monitoring, light curtains, and two-hand control stations. The combination of instantaneous and delayed outputs provides flexibility for applications requiring controlled shutdowns.

Country of Origin

Made in Czech Republic.

CO2 Impact

Choosing this reused Siemens safety relay saves approximately 12 kg of CO2 compared to manufacturing a new one. This is equivalent to the emissions from charging a smartphone over 1400 times.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

How do I configure the time delay on the 3SK1213-1AB40?

The time delay is not configurable on this specific model. The 3SK1213 series are basic units with fixed functionalities. For adjustable time delays, you would need to look at other models in the SIRIUS 3SK1 Advanced or 3SK2 series, or use an additional timing relay.

Can this safety relay be used for a SIL 3 / PL e application?

Yes, the Siemens SIRIUS 3SK1 relays are certified for use in safety applications up to SIL 3 according to IEC 61508/IEC 62061 and PL e according to ISO 13849-1. Always consult the official safety manual and perform a proper risk assessment for your specific application.

What is the difference between the instantaneous and delayed outputs?

The instantaneous enabling circuits switch immediately when the safety conditions are met. The delayed enabling circuits switch off after a set time delay when the input signal is removed, which is useful for applications like allowing a motor to come to a controlled stop before the power is completely cut.

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Last Update: Friday, March 13, 2026