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Device for monitoring of safety-related circuits

Safety monitoring devices, also known as safety relays, safety controllers, or safety modules, are specialized components designed to monitor and control safety-related circuits in industrial automation. These devices ensure that machinery operates within safe parameters by detecting faults, emergency stops, or guard door openings and initiating...

Safety monitoring devices, also known as safety relays, safety controllers, or safety modules, are specialized components designed to monitor and control safety-related circuits in industrial automation. These devices ensure that machinery operates within safe parameters by detecting faults, emergency stops, or guard door openings and initiating a safe shutdown. Key technical features include various contact configurations such as 3PST-NA, SPST-NC, and DPST-NA, with rated voltages like 24 VAC/DC or 100-240 VAC. They offer different reset modes (automatic or manual) and timing functions for delayed off (e.g., 7.5 s, 15 s, 30 s). Mounting options include DIN rail formats (17.5 mm, 22.5 mm, 45 mm) and network-based controllers with multiple inputs and outputs (e.g., 16E-8S-4T). These devices are crucial for achieving functional safety levels up to SIL 3 or PL e.

Safety monitoring devices are deployed across a wide range of industrial sectors, including automotive manufacturing, packaging, material handling, robotics, and machine tooling. They are typically installed in control cabinets, safety panels, and distributed automation systems. Common applications include monitoring emergency stop circuits, safety light curtains, two-hand control stations, and interlocking guard doors. Network-based safety controllers integrate into fieldbus systems like DeviceNet or EtherNet/IP, enabling centralized safety management and diagnostics in complex production lines.

These devices comply with international safety standards such as IEC 61508, ISO 13849, and IEC 62061, ensuring reliable performance in safety-critical applications. They are designed to be compatible with a wide range of automation brands, including Omron, Siemens, Rockwell Automationand others. The modular design allows for easy integration into existing safety architectures, and many units feature cross-monitoring and redundancy for enhanced fault detection.

At Electric Automation Network, we offer a comprehensive selection of safety monitoring devices with real-time pricing and detailed technical documentation. Our engineering team provides specialized support to help you select the right safety solution for your application. Benefit from express worldwide shipping and personalized assistance to ensure your machinery meets the highest safety standards.

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Manufacturer Code Reference Catalog Number Description Delivery Price

NLG13D724SA

NLG13D724SA

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Selected parameters FUNCTION Light curtains SAFETY CATEGORY 4 SAFETY OUTPUT 3 NO Others SIZE 22 mm CONNECTIONS Screw-fixed POWER SUPPLY 24 VDC MOUNTING DIN-rail AUX OUTPUT 1 NC OTHERS Automatic/Manual start

Security module - Safety barrier. Fixed screw terminals

Safety Module Light Curtains , according to 2006/42/EC Machinery Directive, Power Supply 24VDC , 3 NO safety outputs, 1 NC auxiliary output , Automatic/Manual reset, DIN rail mount 22.5mm.

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NLG13D724SC

NLG13D724SC

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Selected parameters FUNCTION Light curtains SAFETY CATEGORY 4 SAFETY OUTPUT 3 NO Others SIZE 22 mm CONNECTIONS Screw-fixed POWER SUPPLY 24 VDC MOUNTING DIN-rail AUX OUTPUT 1 NC OTHERS Monitored manual start

Security module - Safety barrier. Fixed screw terminals

Safety Module Light Curtains , according to 2006/42/EC Machinery Directive, Power Supply 24VDC , 3 NO safety outputs, 1 NC auxiliary output , Monitored manual reset, DIN rail mount 22.5mm.

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3RK3111-2AA10

3RK3111-2AA10

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SIRIUS, central unit 3RK3 Basic for modular Safety system 3RK3 4/8 F-DI,1F-RO,1 F-DO,24 V DC parameterizable using software Safety ES 45 mm overall width Spring-type terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1)

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3RK3111-1AA10

3RK3111-1AA10

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SIRIUS, central unit 3RK3 Basic for modular Safety system 3RK3 4/8 F-DI,1F-RO,1 F-DO,24 V DC parameterizable using software Safety ES 45 mm width screw terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1)

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3RK3121-2AC00

3RK3121-2AC00

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SIRIUS, Central unit 3RK3 ASIsafe Basic for modular Safety system 3RK3 1/2F-DI, 6DI, 1F-RO, 1F-DO,24 V DC Monitoring of ASI slaves Control of 8 safe outputs on AS-Interface bus parameterizable using software Safety ES 45 mm overall width Spring-type terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1) No extension module connectable

SIRIUS, CENTRAL MODULE 3RK3 ASISAFE BASIC FOR MODULAR SECURITY SYSTEM 3RK3 1/2F-DI, 6DI, 1F-RO, 1F-DO, DC 24V SLAVE MONITORING ASI, CONTROL OF 8 SAFE OUTPUTS CONEC. TO THE AS-I BUS PARAMETERIZABLE WITH SW MSS IS WIDTH OF 45MM SPRING TERMINALS UP TO SIL3 (IEC 61508) UP TO PERFORMANCE LEVEL E (ISO 13849-1) NO PLUGGABLE EXPANSION MODULE. Manufactured to order. Non-Cancelable Non-Returnable.

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3RK3122-1AC00

3RK3122-1AC00

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SIRIUS, Central unit 3RK3 ASIsafe Extended for modular Safety system 3RK3 2/4 F-DI, 4 DI, 1 F-RO, 1 F-DO,24 V DC Monitoring of ASI slaves Control of 10 safe outputs on AS-Interface bus parameterizable using software Safety ES 45 mm width screw terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1) 2 extension modules connectable

SIRIUS, CENTRAL MODULE 3RK3 ASISAFE EXTENDED FOR MODULAR SECURITY SYSTEM 3RK3 2/4F-DI,4DI,1F-RO,1F-DO,DC 24V SLAVE MONITORING ASI, CONTROL OF 10 SAFE OUTPUTS CONEC. TO THE AS-I BUS PARAMETERIZABLE WITH SW MSS IS WIDTH OF 45MM SCREW TERMINALS UP TO SIL3 (IEC 61508) TO PERFORMANCE LEVEL E (ISO 13849-1) 2 PLUGGABLE EXPANSION MODULES. Manufactured to order. Non-Cancelable Non-Returnable.

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3RK3122-2AC00

3RK3122-2AC00

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SIRIUS, Central unit 3RK3 ASIsafe Extended for modular Safety system 3RK3 2/4 F-DI, 4 DI, 1 F-RO, 1 F-DO,24 V DC Monitoring of ASI slaves Control of 10 safe outputs on AS-Interface bus parameterizable using software Safety ES 45 mm overall width Spring-type terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1) 2 extension modules connectable

SIRIUS, CENTRAL MODULE 3RK3 ASISAFE EXTENDED FOR MODULAR SECURITY SYSTEM 3RK3 2/4F-DI,4DI,1F-RO,1F-DO,DC 24V SLAVE MONITORING ASI, CONTROL OF 10 SAFE OUTPUTS CONEC. TO THE AS-I BUS PARAMETERIZABLE WITH SW MSS IS WIDTH OF 45MM SPRING TERMINALS UP TO SIL3 (IEC 61508) UP TO PERFORMANCE LEVEL E (ISO 13849-1) 2 CONNECTABLE EXPANSION MODULES. Manufactured to order. Non-Cancelable Non-Returnable.

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3RK3131-2AC10

3RK3131-2AC10

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SIRIUS, Central unit 3RK3 Advanced for modular Safety system 3RK3 4/8 F-DI,1F-RO,1 F-DO,24 V DC Monitoring of ASI slaves Control of 12 safe outputs on AS-Interface bus parameterizable using software Safety ES 45 mm overall width Spring-type terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1) 9 extension modules connectable

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3RK3211-2AA10

3RK3211-2AA10

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SIRIUS, Extension module 3RK32 for modular Safety system 3RK3 4/8 F-DI, 24 V DC Can be parameterized via MSS ES 22.5 mm overall width Spring-type terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1) without connection cable

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3RK3211-1AA10

3RK3211-1AA10

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SIRIUS, Extension module 3RK32 for modular Safety system 3RK3 4/8 F-DI, 24 V DC Can be parameterized via MSS ES 22.5 mm overall width screw terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1) without connection cable

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3RK3221-2AA10

3RK3221-2AA10

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SIRIUS, Extension module 3RK32 for modular Safety system 3RK3 2/4 F-DI, 1/2 F-RO, 24 V DC/1 A Can be parameterized via MSS ES 22.5 mm overall width Spring-type terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1) without connection cable

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3RK3221-1AA10

3RK3221-1AA10

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SIRIUS, Extension module 3RK32 for modular Safety system 3RK3 2/4 F-DI, 1/2 F-RO, 24 V DC/1 A Can be parameterized via MSS ES 22.5 mm overall width screw terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1) without connection cable

SIRIUS Relays safety, extension module. p/ modular safety system 2/4 F-DI, 1/2 F-RO, 24V DC

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3RK3231-2AA10

3RK3231-2AA10

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SIRIUS, Extension module 3RK32 for modular Safety system 3RK3 2/4 F-DI, 2 F-DO, 24 V DC/1.2 A Can be parameterized via MSS ES 22.5 mm overall width Spring-type terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1) without connection cable

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3RK3242-1AA10

3RK3242-1AA10

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SIRIUS, Extension module 3RK32 for modular Safety system 3RK3 4 F-DO, 24 V DC/ 2 A Can be parameterized via MSS ES 22.5 mm overall width screw terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1) without connection cable

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3RK3251-1AA10

3RK3251-1AA10

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SIRIUS, Extension module 3RK32 for modular Safety system 3RK3 4/8 F-RO, 24 V DC/1 A Can be parameterized via MSS ES 45 mm overall width screw terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1) without connection cable

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3RK3251-2AA10

3RK3251-2AA10

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SIRIUS, Extension module 3RK32 for modular Safety system 3RK3 4/8 F-RO, 24 V DC/2 A Can be parameterized via MSS ES 45 mm overall width Spring-type terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1) without connection cable

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3RK3321-1AA10

3RK3321-1AA10

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SIRIUS, Extension module 3RK33 for modular Safety system 3RK3 8 DI, 24 V DC Can be parameterized via MSS ES 22.5 mm overall width screw terminal without connection cable

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3RK3922-1AC10

3RK3922-1AC10

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Starter package for modular Safety system 3RK3 Content: Central unit MSS Advanced connection: Screw terminal Software Safety ES V1.0 Premium, USB PC cable

P.MODULAR STARTER PACKAGE SAFETY SYSTEM 3RK3 CONTAINS: MSS ADVANCED CENTRAL MODULE, MODULAR SAFETY SYSTEM SOFTWARE ES 2008, PC CABLE. Manufactured to order. Non-Cancelable Non-Returnable.

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3RK3511-1BA10

3RK3511-1BA10

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SIRIUS, interface module DP interface, for modular safety system 3RK3 PROFIBUS DP interface 12 Mbps, RS 485 45 mm overall width screw terminal can be parameterized via Safety ES without connection cable

SIRIUS Safety relays, dp-interface interface module, for modular safety system.

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3RK3511-2BA10

3RK3511-2BA10

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SIRIUS, interface module DP interface, for modular safety system 3RK3 PROFIBUS DP interface 12 Mbps, RS 485 45 mm overall width spring-type terminal can be parameterized via Safety ES without connection cable

SIRIUS Safety relays, dp-interface interface module, for modular safety system.

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3RK3922-2AC10

3RK3922-2AC10

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Starter package for modular Safety system 3RK3 Content: Central unit MSS Advanced connection: Spring-type terminal Software Safety ES V1.0 Premium, USB PC cable

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3RK3931-0AA00

3RK3931-0AA00

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Memory module for 3RK3, 3SK2 and 3SU1 PROFINET

MSS, MEMORY MODULE SPARE PART.

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2CSM273063R1521

2CSM273063R1521

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QSD-DIG 230/24 remote signalling panel

Dist. QSD-DIG230/24

QSD-DIG 230/24 Remote signalling panel

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3SK1111-1AB30

3SK1111-1AB30

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SIRIUS safety relay Basic unit Standard series Relay enabling circuits 3 NO contacts plus Relay signaling circuit 1 NC contact Us = 24 V AC/DC screw terminal

SIRIUS Safety Relay; Standard base unit; 3 NA + 1 NC; 24 V AC/DC; screw connection

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3SK1111-1AW20

3SK1111-1AW20

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SIRIUS safety relay Basic unit Standard series Relay enabling circuits 3 NO contacts plus Relay signaling circuit 1 NC contact Us = 110 - 240 V AC/DC 50/60 Hz screw terminal

SIRIUS Safety Relay; Standard Base Unit; 3 NA + 1 NC; 110 - 230 V AC; 50/60 HZ; screw connection.

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3SK1111-2AW20

3SK1111-2AW20

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SIRIUS safety relay Basic unit Standard series Relay enabling circuits 3 NO contacts plus Relay signaling circuit 1 NC contact Us = 110 - 240 V AC/DC 50/60 Hz Spring-type terminal (push-in)

SIRIUS Safety Relay; Standard Base Unit; 3 NA + 1 NC; 110 - 230 V AC; 50/60 HZ; Push-In connection.

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3SK1112-1BB40

3SK1112-1BB40

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SIRIUS safety relay Basic unit Standard series electronic enabling circuits 2 enabling circuits plus 1 signaling circuit Us = 24 V DC screw terminal

SIRIUS Safety Relay; Standard Base Unit; 2 NA elect. + 1 NC; 24 V DC; screw connection.

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3SK1120-1AB40

3SK1120-1AB40

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SIRIUS safety relay Basic unit Advanced series electronic enabling circuits 1 enabling circuit 0.5 A Us = 24 V DC screw terminal

SIRIUS Safety Relay; Advanced Base Unit; 1 NA elect.; 24 V DC; screw connection.

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3SK1111-2AB30

3SK1111-2AB30

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SIRIUS safety relay Basic unit Standard series Relay enabling circuits 3 NO contacts plus Relay signaling circuit 1 NC contact Us = 24 V AC/DC Spring-type terminal (push-in)

SIRIUS Safety Relay; Standard Base Unit; 3 NA + 1 NC; 24 V AC/DC; Push-In connection.

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3SK1120-2AB40

3SK1120-2AB40

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SIRIUS safety relay Basic unit Advanced series electronic enabling circuits 1 enabling circuit 0.5 A Us = 24 V DC Spring-type terminal (push-in)

SIRIUS Safety Relay; Advanced Base Unit; 1 NA elect; 24 V DC; Push-In connection.

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