Safety relay from Finder
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Safety relay from Finder
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 Finder 38.51.8.240.0060 coupling relay 6A 240VAC screw connection 1We
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 socketLieske Part No.: 658314 Mfg Part No: 385182400060 Type: 38.51.8.240.0060 |
320,46 EUR
 ≈ £273.67 | ≈ $364.68
Delivery time on requestinfo_outline
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Finder 385182405060 coupling relays,
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 |
362,44 EUR
≈ £309.52 | ≈ $412.46
Delivery time on requestinfo_outline
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Finder 391100120060 interface relays MasterBASI ,
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 |
214,24 EUR
≈ £182.96 | ≈ $243.81
Delivery time on requestinfo_outline
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Finder 391100240060 interface relays MasterBASI,
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 |
-89% 21,42 EUR 193,45 EUR
≈ £18.29 | ≈ $24.38
Delivery time from supplier's stock (ca.) 1 workdaysinfo_outline
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Finder 391182300060 interface relays MasterBASI,
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 |
288,88 EUR
≈ £246.70 | ≈ $328.75
Delivery time on requestinfo_outline
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Finder 392100240060 interface relays MasterOUTP,
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 |
223,34 EUR
≈ £190.73 | ≈ $254.16
Delivery time on requestinfo_outline
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Finder 393000249024 interface relays SSR master
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 |
474,21 EUR
≈ £404.98 | ≈ $539.65
Delivery time on requestinfo_outline
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Finder 393070249024 interface relays SSR master
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 |
469,06 EUR
≈ £400.58 | ≈ $533.79
Delivery time on requestinfo_outline
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Finder 39.31.0.012.0060 coupling relay 6A 12VAC/DC MasterPlus screw connection 1We
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 |
237,70 EUR
≈ £203.00 | ≈ $270.50
Delivery time on requestinfo_outline
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Coupling relay Finder Master Plus, 393100240060
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 |
237,70 EUR
≈ £203.00 | ≈ $270.50
Delivery time on requestinfo_outline
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Coupling relay Finder Master Plus, 393132300060
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 |
299,48 EUR
≈ £255.76 | ≈ $340.81
Delivery time on requestinfo_outline
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Finder 39.31.8.230.0060 coupling relay 6A 230VAC MasterPlus screw connection 1We
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 |
298,29 EUR
≈ £254.74 | ≈ $339.45
Delivery time on requestinfo_outline
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Finder 394000249024 interface relays SSR master
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 |
459,86 EUR
≈ £392.72 | ≈ $523.32
Delivery time on requestinfo_outline
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Finder 394100245060 interface relays MasterINPU,
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 |
262,75 EUR
≈ £224.39 | ≈ $299.01
Delivery time on requestinfo_outline
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Finder 394182305060 interface relays MasterINPU,
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 |
337,69 EUR
≈ £288.39 | ≈ $384.29
Delivery time on requestinfo_outline
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Finder 583491250050 coupling relays, 4W 7A 125VDC
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 |
379,67 EUR
≈ £324.24 | ≈ $432.06
Delivery time on requestinfo_outline
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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)
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⚠ Dual-Channel Evaluation (Category 3, 4)
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Related Categories in the Shop
Further products from the Industrial Relays and Contactors range at Industry-Electronics.
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► 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. |
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► 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. |
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⚠ 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 |