Safety relay from Murrelektronik

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Safety relay from Murrelektronik

Murrelektronik 3000-33113-1020012 MIRO SAFE+Switch H 48-230VAC 3S/1Ö 22.5mm MIRO SAFE+ Switch H 48-230 48-230 VAC - 3 NO / 1 NC 22.5 mm spring terminals

Lieske Part No.: 1134857
Mfg Part No: 3000-33113-1020012

264,94 EUR

Murrelektronik 3000-33113-1020012 plus VAT

≈ £226.79 | ≈ $304.42

Delivery time on request

Murrelektronik 3000-33113-3020005 MIRO SAFE+Switch ECOA 24V 2S/SPS output 22.5mm

Lieske Part No.: 825399
Mfg Part No: 3000-33113-3020005

179,28 EUR

Murrelektronik 3000-33113-3020005 plus VAT

≈ £153.46 | ≈ $205.99

Delivery time on request

Murrelektronik 3000-33113-3020012 MIRO SAFE+Switch HL 24V 3S/1Ö 22.5mm

Lieske Part No.: 838465
Mfg Part No: 3000-33113-3020012

225,74 EUR

Murrelektronik 3000-33113-3020012 plus VAT

≈ £193.23 | ≈ $259.38

Delivery time on request

Murrelektronik 3000-33113-3020025 MIRO SAFE+Switch BAL 24V 3S/1Ö 22.5mm MIRO SAFE+ Switch BA L 24 24 VAC/DC - 3 NO / 1 NC 22.5 mm screw terminals

Lieske Part No.: 1767549
Mfg Part No: 3000-33113-3020025

207,86 EUR

Murrelektronik 3000-33113-3020025 plus VAT

≈ £177.93 | ≈ $238.83

Delivery time on request

Murrelektronik 3000-33113-3020075 MIRO SAFE+E 24V 4S/2Ö 22.5mm MIRO SAFE+ E 24 24 VAC/DC - 4 NO / 2 NC 22.5 mm spring terminals

Lieske Part No.: 1767550
Mfg Part No: 3000-33113-3020075

200,38 EUR

Murrelektronik 3000-33113-3020075 plus VAT

≈ £171.53 | ≈ $230.24

Delivery time on request

Murrelektronik 69000 emergency stop/emergency stop Ta 2 positive opening contacts IP65

Lieske Part No.: 728764
Mfg Part No: 69000

105,95 EUR

≈ £90.69 | ≈ $121.74

Delivery time on request

Murrelektronik 69001 emergency stop/emergency stop button with 2 positive opening contacts Emergency stop button with 2 positive opening contacts in IP65 housing M12 connection, 5-pin rotary release left/right

Lieske Part No.: 1770517
Mfg Part No: 69001

108,66 EUR

≈ £93.01 | ≈ $124.85

Delivery time on request

Murrelektronik 69002 Emergency stop button with 2 positive opening contacts Emergency off/emergency stop button with 2 positive opening contacts in IP65 housing. Illuminated (white LED). M12 connection, 8-pin.

Lieske Part No.: 2130218
Mfg Part No: 69002

165,56 EUR

≈ £141.72 | ≈ $190.23

Delivery time on request

Murrelektronik 69012 reset button with 2 illuminated buttons each with 1 normally open contact Reset button with 2 illuminated buttons, 1 normally open contact each in an IP65 housing, M12 connection, 8-pin.

Lieske Part No.: 2130219
Mfg Part No: 69012

201,16 EUR

≈ £172.19 | ≈ $231.13

Delivery time on request

Murrelektronik 69013 reset button with 1 illuminated button 1 make contact Reset button with 1 illuminated button 1 normally open contact in IP65 housing M12 connection, 4-pin.

Lieske Part No.: 1770531
Mfg Part No: 69013

119,62 EUR

≈ £102.39 | ≈ $137.44

Delivery time on request

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