Siemens 3SK1111-1AB30 Safety relays

Siemens SIRIUS 3SK1 Safety Relay 3SK1111-1AB30 Overview

The Siemens SIRIUS 3SK1111-1AB30 is a compact safety relay designed for a variety of safety applications. It features fixed terminals and provides basic safety functions such as monitoring emergency stop buttons and safety gates.

Product Detailed Description

• Function:

• Monitors safety circuits, such as emergency stop buttons and safety gates.

• Reliably switches off relevant machines or equipment when a hazardous situation is detected.

• Features positively driven contacts to ensure reliable opening of the safety circuit.

• Offers single-channel or dual-channel connection options.

• Provides automatic or manual reset functionality.

• Integrated LEDs for displaying device status and diagnostic information.

• Features:

• Compact dimensions, saving control cabinet space.

• Fixed screw terminals for easy wiring.

• Complies with important safety standards such as IEC 61508 (SIL 3) and EN ISO 13849-1 (PL e).

• Low power consumption.

• Simple operation and wiring.

Product Parameters

• Safety Integrity Level (SIL):

• SIL 3 (IEC 61508)

• Performance Level (PL) / Category:

• PL e / Category 4 (EN ISO 13849-1)

• Input Channels:

• 1 or 2-channel connection

• Start/Reset Circuit:

• Manual or automatic reset selectable

• Safety Contacts (NO):

• 3

• Auxiliary Contacts (NC):

• 1

• Rated Voltage (Un):

• 24 V DC

• Voltage Range:

• 20.4 V DC to 28.8 V DC

• Rated Operating Current (Ie) Safety Contacts:

• 6 A (AC-15, 230 V)

• 6 A (DC-13, 24 V)

• Rated Operating Current (Ie) Auxiliary Contacts:

• 3 A (AC-15, 230 V)

• 2 A (DC-13, 24 V)

• Connection Method:

• Fixed screw terminals

• Conductor Cross-Section:

• Solid or stranded: 0.25 to 2.5 mm²

• With ferrule: 0.25 to 1.5 mm²

• Degree of Protection:

• IP20

• Mounting:

• 35 mm DIN rail mounting

• Ambient Temperature:

• -25 °C to +60 °C

• Dimensions (W x H x D):

• 22.5 mm x 99 mm x 114 mm

• Weight:

• Approx. 0.18 kg

• Certifications:

• CE, cULus, TÜV, KCC, EAC, etc. (refer to the specific product manual)

Product Advantages

• High Safety:

• Complies with high-level safety standards such as SIL 3 and PL e / Category 4.

• Positively driven contacts ensure reliable opening of the safety circuit.

• Compact Design:

• Saves control cabinet space, suitable for applications with limited space.

• Easy Installation and Wiring:

• Fixed screw terminals facilitate wiring.

• Clear terminal markings.

• Flexible Application:

• Can be used for single-channel or dual-channel safety circuits.

• Selectable manual or automatic reset.

• High Reliability:

• Siemens SIRIUS series products offer good reliability and durability.

• Status Indication:

• Integrated LEDs facilitate fault diagnosis and status monitoring.

Precautions

• Correct Selection:

• Select the appropriate safety relay model based on specific safety requirements and application.

• Correct Installation and Wiring:

• Follow Siemens' installation and wiring diagrams to ensure correct and reliable connections.

• Safety Circuit Design:

• Integrate the safety relay into a safety circuit that complies with relevant safety standards.

• Power Requirements:

• Use a 24 V DC power supply that meets the specifications.

• Environmental Conditions:

• Ensure the operating environment temperature is within the permissible range.

• Regular Inspection and Testing:

• Regularly check the function of the safety relay to ensure it is working properly.

• Reset Mode:

• Select the appropriate reset mode (manual or automatic) according to the application requirements and ensure correct connection of the reset circuit.

Product Applications

• Emergency Stop Circuits:

• Monitors emergency stop buttons and safely stops the machine when pressed.

• Safety Gate Monitoring:

• Monitors the status of safety gates and stops hazardous movements when the gate is opened.

• Light Grids and Safety Light Curtains:

• Acts as an interface for safety light grids or light curtains, stopping the machine when personnel enter a hazardous area.

• Two-Hand Control Circuits:

• Used for machines requiring simultaneous operation with both hands to ensure operator safety.

• Limit Switch Monitoring:

• Monitors the status of safety limit switches to prevent the machine from exceeding safe operating limits.

• General Safety Applications:

• Suitable for various machines and equipment requiring compliance with high-level safety standards.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapor

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