Safety relay from Euchner

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Safety relay from Euchner

Euchner Bolt NZ / TZ-S1 028 357 Aluminum latch
For left or right hinged doors. Ball handle at the bottom.
Spring catch in open position
Can be locked with padlocks in open position
Actuator included in delivery

Lieske Part No.: 607586
Mfg Part No: 028357
Type: RIEGEL NZ/TZ-S1

177,67 EUR

≈ £151.73 | ≈ $202.19

Delivery time on request

Euchner 049102 TZ2RE024SR6 safety switch mM, TZ2RE024SR6 Auxiliary release on the front
Two LED indicators, red and green
Connector SR6
Actuator head mounted on the right

Lieske Part No.: 109850
Mfg Part No: 049102
Type: TZ2RE024SR6

571,31 EUR

≈ £487.90 | ≈ $650.15

Delivery time on request

Euchner 055408 YOU ZSA2A2S05A enabling switch, ZSA2A2S05A

Lieske Part No.: 365093
Mfg Part No: 055408
Type: ZSA2A2S05A

580,58 EUR

≈ £495.82 | ≈ $660.70

Delivery time on request

Euchner 055411 ZSA2B2G10A enabling switch, ZSA2B2G10A

Lieske Part No.: 499471
Mfg Part No: 055411
Type: ZSA2B2G10A

491,30 EUR

≈ £419.57 | ≈ $559.10

Delivery time on request

Euchner ZSE2-2C1692 enabling button 2S 1Ö 070752 3-stage function, 30.5 mm installation dimension, suitable for. B. for installation in hand-held control devices HBL or housing G2 or G3

Lieske Part No.: 741793
Mfg Part No: 070752
Type: ZSE2-2C1692

335,02 EUR

≈ £286.11 | ≈ $381.25

Delivery time on request

Euchner ZSE2-4 enabling switch 070 762

Lieske Part No.: 590980
Mfg Part No: 070762
Type: ZSE2-4

364,06 EUR

≈ £310.91 | ≈ $414.30

Delivery time on request

Euchner TZ1LE024M safety switch with magnetic lock 082050 Sales unit: 1 ST.

Lieske Part No.: 1572786
Mfg Part No: 082050
Type: TZ1LE024M

510,19 EUR

≈ £435.70 | ≈ $580.60

Delivery time on request

Euchner TZ1RE024M safety switch with magnetic lock 082051 Sales unit: 1 ST.

Lieske Part No.: 1572785
Mfg Part No: 082051
Type: TZ1RE024M

510,19 EUR

≈ £435.70 | ≈ $580.60

Delivery time on request

Euchner 082121 ner safety switch, NZ1VZ-528EL220-M Housing according to EN 50041
Cable entry M20 x 1.5
LED display

Lieske Part No.: 163369
Mfg Part No: 082121
Type: NZ1VZ-528EL220-M

166,26 EUR

≈ £141.99 | ≈ $189.20

Delivery time on request

Euchner NZ1VZ-3131E-M safety switch 082122 Housing according to EN 50041
cable entry M20 x 1.5
Sales unit: 1 piece.

Lieske Part No.: 1237659
Mfg Part No: 082122
Type: NZ1VZ-3131E-M

145,77 EUR

≈ £124.49 | ≈ $165.89

Delivery time on request

Euchner NZ1VZ-2131E-M safety switch 082123 Housing according to EN 50041
cable entry M20 x 1.5
Sales unit: 1 piece.

Lieske Part No.: 1237658
Mfg Part No: 082123
Type: NZ1VZ-2131E-M

145,77 EUR

≈ £124.49 | ≈ $165.89

Delivery time on request

Euchner 083170 TZ1LE024M-C1684 safety switch, TZ1LE024M-C1684 Auxiliary release on the front
Escape release on the rear with push button
Two LED indicators, red and green
Actuator head mounted on the left

Lieske Part No.: 303781
Mfg Part No: 083170
Type: TZ1LE024M-C1684

558,66 EUR

≈ £477.10 | ≈ $635.76

Delivery time on request

Euchner bar NZ-CB 083892 Steel latch
For left-hinged doors
Ball detent in closed position
Lockable with padlocks in open position
Actuator included in delivery
Sales unit: 1 ST.

Lieske Part No.: 1237631
Mfg Part No: 083892
Type: RIEGEL NZ-CB

330,92 EUR

≈ £282.61 | ≈ $376.59

Delivery time on request

Euchner TZ1LE024MVAB safety switch with magnetic lock 083965 Auxiliary release on the front
Two LED displays, red and green
Actuator head mounted on the left
Sales unit: 1 ST.

Lieske Part No.: 1237693
Mfg Part No: 083965
Type: TZ1LE024MVAB

527,65 EUR

≈ £450.61 | ≈ $600.47

Delivery time on request

Euchner TZ1RE024MVAB safety switch with magnetic lock 083966 Auxiliary unlocking on the front
Two LED displays, red and green
Actuator head mounted on the right
Sales unit: 1 ST.

Lieske Part No.: 1217032
Mfg Part No: 083966
Type: TZ1RE024MVAB

527,65 EUR

≈ £450.61 | ≈ $600.47

Delivery time on request

Euchner 084132 TP4-4131A024M safety switch, TP4-4131A024M Sales Unit: 1 ST.

Lieske Part No.: 891249
Mfg Part No: 084132
Type: TP4-4131A024M

275,68 EUR

≈ £235.43 | ≈ $313.72

Delivery time on request

Euchner TP3-2131A024M safety switch 084142 Sales unit: 1 ST.

Lieske Part No.: 1259231
Mfg Part No: 084142
Type: TP3-2131A024M

275,68 EUR

≈ £235.43 | ≈ $313.72

Delivery time on request

Euchner safety switch 084 145, TP4 2131A024M Auxiliary release on the front
With door signal contact
Increased horizontal overrun

Lieske Part No.: 323397
Mfg Part No: 084145
Type: TP4-2131A024M

275,68 EUR

≈ £235.43 | ≈ $313.72

Delivery time on request

Euchner TP4-2131A024MC1787 safety switch 084159 Sales unit: 1 ST.

Lieske Part No.: 1572784
Mfg Part No: 084159
Type: TP4-2131A024MC1787

307,04 EUR

≈ £262.21 | ≈ $349.41

Delivery time on request

Euchner TZ1LE024RC18VAB-C1826 safety switch with magnetic lock.084246 Sales unit: 1 ST.

Lieske Part No.: 1572768
Mfg Part No: 084246
Type: TZ1LE024RC18VAB-C1826

619,42 EUR

≈ £528.98 | ≈ $704.90

Delivery time on request

Euchner 084247 TZ1RE024RC18VAB-C1826 Sicherheitssc, TZ1RE024RC18VAB-C1826 Auxiliary release on the front
Two LED indicators, red and green
Connector M23 (RC18)
Actuator head mounted on the right

Lieske Part No.: 267785
Mfg Part No: 084247
Type: TZ1RE024RC18VAB-C182

619,42 EUR

≈ £528.98 | ≈ $704.90

Delivery time on request

Euchner TP3-4121K024M safety switch 084260 Auxiliary unlocking on the front
With door alarm contact
Increased overtravel when approaching horizontally and vertically
Sales unit: 1 ST.

Lieske Part No.: 1237607
Mfg Part No: 084260
Type: TP3-4121K024M

279,42 EUR

≈ £238.62 | ≈ $317.98

Delivery time on request

Euchner TP4-4141A024M safety switch 084275 Auxiliary unlocking on the front
With door alarm contact
Increased overtravel horizontally
Sales unit: 1 ST.

Lieske Part No.: 1237621
Mfg Part No: 084275
Type: TP4-4141A024M

307,04 EUR

≈ £262.21 | ≈ $349.41

Delivery time on request

Euchner TP6-4120A024M safety switch 084280 Auxiliary unlocking on the front
With door request contact
Increased overtravel horizontally
Sales unit: 1 ST.

Lieske Part No.: 1237647
Mfg Part No: 084280
Type: TP6-4120A024M

286,90 EUR

≈ £245.01 | ≈ $326.49

Delivery time on request

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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)

✓	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