Safety relay from Finder

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Safety relay from Finder

Finder 385182400060 38.51.8.240.0060 coupling relay 6 A 240 VAC screw connection 1 NO Coupling relay for DIN rail with screw connections, 1 changeover contact 6 A / 250 V AC, coil voltage 240 V AC, contact material AgNi, LED and EMC suppression are integrated in the socket

Lieske Part No.: 658314
Mfg Part No: 385182400060
Type: 38.51.8.240.0060

-6% 287,94 EUR 307,51 EUR

≈ £241.01 | ≈ $322.20

Made to order · Delivery time approx. 20 workdays

Finder 385182405060 38.51.8.240.5060 coupling relay 6A 240VAC hard gold-plated screw connection 1NO Coupling relay for DIN rail with screw connections, 1 changeover contact 6 A / 250 V AC, coil voltage 240 V AC, contact material AgNi hard gold-plated, LED and EMC suppression are integrated in the ...

Lieske Part No.: 215546
Mfg Part No: 385182405060
Type: 38.51.8.240.5060

-6% 325,66 EUR 347,80 EUR

≈ £272.58 | ≈ $364.41

Made to order · Delivery time approx. 20 workdays

Finder 391100120060 39.11.0.012.0060 coupling relay 6A 12VAC/DC MasterBasic screw connection 1We MasterBASIC narrow coupling relay for DIN rail, with screw connections, modular design, 1 changeover contact for 6 A, contact material AgNi, universally usable as coupling relay in the input to the ...

Lieske Part No.: 689842
Mfg Part No: 391100120060
Type: 39.11.0.012.0060

-6% 192,47 EUR 205,58 EUR

≈ £161.10 | ≈ $215.37

Made to order · Delivery time approx. 20 workdays

Finder 391100240060 39.11.0.024.0060 coupling relay 6A 24VAC/DC MasterBasic screw connection 1We MasterBASIC narrow coupling relay for DIN rail, with screw connections, modular design, 1 changeover contact for 6 A, contact material AgNi, universally usable as a coupling relay in the input to the ...

Lieske Part No.: 770633
Mfg Part No: 391100240060
Type: 39.11.0.024.0060

-6% 19,25 EUR 20,56 EUR

≈ £16.11 | ≈ $21.54

Delivery time from supplier's stock (ca.) 3 workdays

Finder 391182300060 39.11.8.230.0060 coupling relay 6 A 230 VAC MasterBasic screw connection 1 NO MasterBASIC narrow coupling relay for DIN rail, with screw connections, modular design, 1 changeover contact for 6 A, contact material AgNi, universally usable as coupling relay in the input to the ...

Lieske Part No.: 312799
Mfg Part No: 391182300060
Type: 39.11.8.230.0060

-6% 259,54 EUR 277,21 EUR

≈ £217.23 | ≈ $290.43

Made to order · Delivery time approx. 20 workdays

Finder 392100240060 39.21.0.024.0060 coupling relay 6A 24VAC/DC MasterOutput screw connection 1S MasterOUTPUT narrow coupling relay for DIN rail, with screw connections, modular design, 1 NO contact for 6 A contact material AgNi, for advantageous connection of actuators to the PLC output, LED ...

Lieske Part No.: 819329
Mfg Part No: 392100240060
Type: 39.21.0.024.0060

-6% 200,64 EUR 214,32 EUR

≈ £167.94 | ≈ $224.52

Made to order · Delivery time approx. 20 workdays

Finder 393000249024 39.30.0.024.9024 coupling relay 2A 24VAC/DC MasterPlus SSR 1NO 24VDC MasterPLUS narrow coupling relay for DIN rail, with screw connections, modular design, SSR contacts 1 NO for 6 A 24 V DC, can be used universally as a coupling relay in the input to the PLC or in the ...

Lieske Part No.: 159794
Mfg Part No: 393000249024
Type: 39.30.0.024.9024

-6% 426,07 EUR 455,05 EUR

≈ £356.62 | ≈ $476.77

Made to order · Delivery time approx. 20 workdays

Finder 393070249024 39.30.7.024.9024 coupling relay 2A 24VDC MasterPlus screw connection SSR 1NO 24VDC MasterPLUS narrow coupling relay for DIN rail, with screw connections, modular design, SSR contacts 1 NO for 6 A 24 V DC, can be used universally as a coupling relay in the input to the PLC or in the ...

Lieske Part No.: 276114
Mfg Part No: 393070249024
Type: 39.30.7.024.9024

-6% 421,42 EUR 450,11 EUR

≈ £352.73 | ≈ $471.57

Made to order · Delivery time approx. 20 workdays

Finder 393100120060 39.31.0.012.0060 coupling relay 6A 12VAC/DC MasterPlus screw connection 1NO MasterPLUS narrow coupling relay for DIN rail, with screw connections, modular design, 1 changeover contact for 6 A, contact material AgNi, can be used universally as a coupling relay in the input to ...

Lieske Part No.: 379848
Mfg Part No: 393100120060
Type: 39.31.0.012.0060

-6% 213,56 EUR 228,09 EUR

≈ £178.75 | ≈ $238.97

Made to order · Delivery time approx. 20 workdays

Finder 393100240060 39.31.0.024.0060 coupling relay 6A 24VAC/DC MasterPlus screw connection 1NO MasterPLUS narrow coupling relay for DIN rail, with screw connections, modular design, 1 changeover contact for 6 A, contact material AgNi, can be used universally as a coupling relay in the input to ...

Lieske Part No.: 285598
Mfg Part No: 393100240060
Type: 39.31.0.024.0060

-6% 213,56 EUR 228,09 EUR

≈ £178.75 | ≈ $238.97

Made to order · Delivery time approx. 20 workdays

Finder 393132300060 39.31.3.230.0060 coupling relay 6 A 230 VAC MasterPlus screw connection 1 NO MasterPLUS narrow coupling relay for DIN rail, with screw connections, modular design, 1 changeover contact for 6 A, contact material AgNi, can be used universally as a coupling relay in the input to ...

Lieske Part No.: 823169
Mfg Part No: 393132300060
Type: 39.31.3.230.0060

-6% 269,04 EUR 287,38 EUR

≈ £225.19 | ≈ $301.06

Made to order · Delivery time approx. 20 workdays

Finder 393182300060 39.31.8.230.0060 coupling relay 6 A 230 VAC MasterPlus screw connection 1 NO MasterPLUS narrow coupling relay for DIN rail, with screw connections, modular design, 1 changeover contact for 6 A, contact material AgNi, can be used universally as a coupling relay in the input to ...

Lieske Part No.: 685239
Mfg Part No: 393182300060
Type: 39.31.8.230.0060

-6% 268,00 EUR 286,24 EUR

≈ £224.32 | ≈ $299.89

Made to order · Delivery time approx. 20 workdays

Finder 394000249024 39.40.0.024.9024 coupling relay 2A 24VAC/DC MasterInput SSR 1S 24VDC MasterINPUT narrow coupling relay for DIN rail, with screw connections, modular design, SSR contacts 1 NO for 6 A 24 V DC, for convenient connection of sensors to the PLC input, LED display, terminals ...

Lieske Part No.: 873681
Mfg Part No: 394000249024
Type: 39.40.0.024.9024

-6% 413,15 EUR 441,27 EUR

≈ £345.81 | ≈ $462.31

Made to order · Delivery time approx. 20 workdays

Finder 394100245060 39.41.0.024.5060 coupling relay 6A 24VAC/DC hard gold-plated MasterInput 1NO MasterINPUT narrow coupling relay for DIN rail, with screw connections, modular design, 1 changeover contact for 6 A, contact material AgNi- hard gold-plated, for advantageous connection of sensors to ...

Lieske Part No.: 336320
Mfg Part No: 394100245060
Type: 39.41.0.024.5060

-6% 236,07 EUR 252,13 EUR

≈ £197.59 | ≈ $264.16

Made to order · Delivery time approx. 20 workdays

Finder 394182305060 39.41.8.230.5060 coupling relay 6 A 230 VAC hard gold-plated MasterInput 1 NO MasterINPUT narrow coupling relay for DIN rail, with screw connections, modular design, 1 changeover contact for 6 A, contact material AgNi- hard gold-plated, for advantageous connection of sensors to ...

Lieske Part No.: 203543
Mfg Part No: 394182305060
Type: 39.41.8.230.5060

-6% 303,43 EUR 324,05 EUR

≈ £253.97 | ≈ $339.54

Made to order · Delivery time approx. 20 workdays

Finder 583491250050 58.34.9.125.0050 coupling relay 7 A 125 VDC screw connection 4 NC Coupling relay for DIN rail with screw connections, 4 changeover contacts 7 A / 250 V AC, coil voltage 125 V DC, contact material AgNi, with integrated LED and EMC suppression

Lieske Part No.: 604576
Mfg Part No: 583491250050
Type: 58.34.9.125.0050

-6% 341,14 EUR 364,32 EUR

≈ £285.53 | ≈ $381.74

Made to order · Delivery time approx. 20 workdays

Standards and Directives for Safety Relays

The selection and use of safety switching devices is clearly governed by international standards and EU directives.

ISO 13849-1 – Performance Level Defines requirements for safety-related parts of control systems (SRP/CS). The standard specifies 5 Performance Levels (PL a to PL e) and describes how to calculate them using category, MTTF, DC and CCF. The primary standard for machine builders in the EU.	IEC 62061 – Safety Integrity Level Standard for safety-related electrical control systems in industry. Assesses safety functions via Safety Integrity Level (SIL 1 to 3) based on PFH values (probability of dangerous failure per hour). Used alongside or as an alternative to ISO 13849.	EN 60947-5-1 – Low-Voltage Switchgear Product standard for electromechanical control devices. Governs technical requirements for control and signalling circuits, switching devices and positively guided contacts. Basis for CE marking of safety relays.

Machinery Directive 2006/42/EC EU directive establishing essential health and safety requirements for machinery. Safety relays are frequently part of the evidence for the declaration of conformity. From 2027 it will be replaced by the Machinery Regulation (EU) 2023/1230.	IEC 61810-3 – Positively Guided Contacts Defines requirements for electromechanical elementary relays with positively guided contacts. The positive guidance ensures that NC and NO contacts can never be closed simultaneously – the fundamental principle of relay safety.	EN 574 – Two-Hand Controls Safety standard specifically for two-hand controls. Defines three types (I, II, III) with different levels of protection. Type III C (simultaneous actuation, anti-defeat) is the highest level and is required for presses and stamping machines.

Performance Level vs. Safety Integrity Level

Both metrics describe the ability of a safety function to prevent a dangerous failure – calculated according to different standards.

PL (ISO 13849)	SIL (IEC 62061)	PFH Range (failures/h)	Typical Application
PL a	–	≥ 10⁻⁵ to < 10⁻⁴	Simple guards, low risk categories
PL b	SIL 1	≥ 10⁻⁶ to < 10⁻⁵	Simple guards, minor injury risk
PL c	SIL 1	≥ 10⁻⁷ to < 10⁻⁶	Safety gates, simple guard rails, medium risks
PL d	SIL 2	≥ 10⁻⁸ to < 10⁻⁷	Emergency stop, interlocked safety gates, light curtains
PL e	SIL 3	≥ 10⁻⁹ to < 10⁻⁸	Highest requirements: presses, robot cells, ATEX zones

Single-Channel vs. Dual-Channel Evaluation

The number of channels is decisive for the achievable Performance Level and fault tolerance of the safety function.

► Single-Channel Evaluation (Category B, 1, 2)

✓	For lower safety requirements (PL a to PL c)
✓	One input signal is monitored
✓	No protection against cable break or short circuit at the sensor
✓	Suitable for simple guards and safety mats (low risks)

⚠ Dual-Channel Evaluation (Category 3, 4)

✓	For high safety requirements (PL d, PL e)
✓	Two independent input signals are evaluated redundantly
✓	Integrated cross-circuit detection and wire break monitoring
✓	Mandatory for emergency stop, interlocked guards, light curtains at robot cells

Related Categories in the Shop

Further products from the Industrial Relays and Contactors range at Industry-Electronics.

► Industrial Relays Standard switching relays and coupling relays for general switching tasks in automation and control engineering.	► Industrial Timing Relays Timing relays for start-up delays, run-down functions and cyclic control tasks in automation technology.	► Contactors Power contactors and motor protection switches for safe switching of drives, motors and loads up into the kW range.

► Isolating Switches / Measuring Relays Transducer relays, monitoring relays and isolating amplifiers for process automation and plant engineering.	► Electronic Components Electronic control and regulation modules, voltage monitors and control relays for industrial control tasks.	► All Industrial Relays & Contactors To the complete range of the Industrial Relays and Contactors category with all sub-sections.

⚠ Safety Relay Technical Support

Uncertain about which safety relay is right for your application? Our technical team advises on device selection, Performance Level, wiring concepts and standards compliance – personally and without detours.

+49 (0)7666 / 88499-0 | sales@industry-electronics.com