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Zander Aachen SR2C AC/DC 24V Safety switching device

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2026-03-13Delivery time on requestinfo_outline
Lieske Part No.:1599752
Mfg Part No: SR2C AC/DC 24V
Weight:194 kg

Product information for Zander Aachen SR2C AC/DC 24V:

SR3D Safety Control Unit – Reliable Safety Solution for Machines and Systems

The SR3D safety control unit enables safe and rapid shutdown of moving machine parts in the event of a hazard. Equipped with three safe relay outputs and an auxiliary contact (monitoring contact), the SR3D offers a high safety level up to PL e / SILCL 3, Category 4. It is ideal for emergency stop circuits, safety guard monitoring, as well as use in combustion plants and maritime applications.

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### Application Areas of the SR3D
The SR3D safety control unit is used in the following areas:
  • Emergency stop circuits (single or dual-channel)
  • Safety guard monitoring on machines and systems
  • Continuous operation combustion plants according to EN 50156-1 and EN 746-2
  • Maritime applications (certified by TÜV Rheinland and Germanischer Lloyd)

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### Key Features and Benefits
  • 2 possible start behaviors:
  • - Monitored manual start
    - Automatic start
  • Safety level: PL e, SILCL 3, Category 4
  • Cross-fault and ground-fault monitoring to ensure line integrity
  • 3 safe, redundant, diverse relay outputs for maximum safety
  • 1 auxiliary contact (monitoring contact) for status monitoring
  • Connection options:
  • - Emergency stop buttons
    - Safety switches
    - Contactless safety switches
    - Safety components with OSSD outputs

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    ### Functionality and Safety Concept
    The SR3D ensures safe separation of safety circuits according to EN 60204-1 and fulfills the stop function requirements up to PL e / SIL 3 according to EN ISO 13849-1 and IEC 61508. If the emergency stop circuit is activated (e.g., by pressing an emergency stop button or opening a safety door), the SR3D immediately interrupts the enabling current paths and stops the machine.

    Additional Safety Functions
  • Force-guided relay contacts ensure that the safety function is maintained even if a fault occurs in the device.
  • Cyclic monitoring of relay outputs to detect contact welding or failures.
  • Feedback loop to monitor downstream contactors or expansion modules.
  • LED display of switch status for quick diagnosis and maintenance.

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### Technical Specifications
  • Protection class: IP54 (installation in control cabinets required)
  • Operating voltage: AC 115 V / 230 V – Maintain a minimum distance of 10 mm to adjacent devices
  • Mounting: On a 35 mm DIN rail according to EN 60715 TH35
  • Climatic conditions: Ensure proper heat dissipation in the control cabinet to prevent overheating
  • Distance to adjacent devices: Minimum of 10 mm for AC 115 V / 230 V version

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### Standards and Certifications
  • EN ISO 13849-1 (PL e)
  • IEC 61508 (SIL 3)
  • EN 60204-1 (safe separation of safety circuits)
  • EN 50156-1 / EN 746-2 (for combustion systems)
  • Certified by TÜV Rheinland and Germanischer Lloyd

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### Conclusion
The SR3D safety control unit is a reliable solution for monitoring and shutting down machines and systems in emergency stop and safety guard monitoring systems. Its redundancy, diversity, and force-guided relay contacts ensure maximum operational safety.


Please note...
This article has over-weight and though needs to be transported by a forwarding agency. Please mind, that the calculation of the delivery charges in the shopping cart disregard this aspect. Though, there will be corresponding surcharges after you send us your order.

Questions & answers

What is the delivery time of Zander Aachen SR2C AC/DC 24V Safety switching device?

The article Zander Aachen SR2C AC/DC 24V Safety switching device is currently not in stock und muss auftragsbezogen bestellt werden.

According to our experience the article is ready for dispatch within 5 working days. The delivery time usually refers to 1 piece. When ordering larger quantities, we can maybe shorten the delivery time. Just send us an inquiry about the desired quantity of Zander Aachen SR2C AC/DC 24V to our sales team for an exact delivery time.

How can I buy the item at a lower price?

We offer you Zander Aachen SR2C AC/DC 24V Safety switching device always at the best possible price. We can give you a discount of 2% on Zander Aachen SR2C AC/DC 24V Safety switching device if you choose payment in advance on ordering.

We also offer individual prices for your needs. You can get an offer by using the form Wholesale Inquiry.

 


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