# Safety Relay, 240 V, 3PST-NO, DIN Rail, 6 A, Screw
**URL**: https://novapart.co/products/750134/safety-relay-240-v-3pst-no-din-rail-6-a-screw
**SKU**: 750134
**Manufacturer**: PILZ
**Category**: Switches & Relays || Relays || Safety Relays
**Price**: €246.1000
**Stock**: 25+
**Lead Time**: 78 days (indicative)
## Description
Coil Voltage:240V; Contact Configuration:3PST-NO; Product Range:PNOZ s4 Series; Relay Mounting:DIN Rail; Contact Current:6A; Relay Terminals:Screw; Contact Voltage AC Nom:240V; Contact
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Ip Rating | IP20, IP40, IP54 |
| Coil Voltage | 240V |
| Product Range | - |
| Relay Mounting | DIN Rail |
| Contact Current | 6A |
| Relay Terminals | Screw |
| Contact Material | Silver Copper Nickel |
| Contact Configuration | 3PST-NO |
| Contact Voltage Ac Nom | 240V |
| Contact Voltage Dc Nom | 24V |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:1704484/)
PNOZsigma - Base units
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Sensors **Control and Communication** Electronic monitoring relays Safety Relays PNOZ X PNOZsigma PNOZelog PNOZmulti PNOZpower Configurable control systems Programmable safety and control systems Industrial communication Motion Control Operating and Monitoring Software
G Back to overview
## **PNOZsigma - Base units**
Safe monitoring of E-STOP, safety gate, light grid and two-hand control
## **PNOZ s4 48-240VACDC 3 n/o 1 n/c Order numbers: 750134**
- G Type: **PNOZ s4**
- G Application options: **Safety gate monitor , Instantaneous E-STOP monitoring , Light barrer mon. Cat.4 , Light barrer mon. Cat.2 w/o tp , Light barrier mon. Cat.2 w/ tp , Limit switch**
- G Category in accordance with: **EN 954-1 , EN ISO 13849-1**
- G SIL value: **--**
- G Standards: **VDE 0113-1 , EN 954-1 , EN 62061 , EN 60204-1**
- G Approvals: **UL/cUL , GOST Russia , CCC , BG**
- G Operating modes: **Dual-channel , Without detection of shorts across contacts , Monitored manual reset , Manual start , Single-channel , Automatic start , Self test , Detection of shorts across contacts , Start-up testing**
- G Selectable times: **--**
- G Number of instantaneous safety contacts: **3**
- G Number of delayed safety contacts: **--**
- G Number of auxiliary contacts: **1**
- G Number of delayed auxiliary contacts: **--**
- G Number of semiconductor outputs: **1**
- G Stop category: **0**
- G Supply voltage [V]: **--**
- G Supply voltage range: **48 - 240 V**
- G Supply voltage type: **AC/DC**
- G Max. current at DC1: **6,0 A**
- G Power consumption AC: **--**
- G Power consumption DC: **--**
- G Height dimension: **96,0 mm**
- G Width dimension: **22,5 mm**
- G Depth dimension: **120,0 mm**
- G Height dimension (inches): **3.78"**
- G Width dimension (inches): **0.89"**
- G Depth dimension (inches): **4.72"**
- G Gross weight: **250 g**
- G Net weight: **210 g**
http://www.pilz.co.uk/products/control_communication/safety_relay/f/pnozsigma/s/00514/index.jsp?itemId=750134 (1 of 2)19/02/2009 11:47:57
E-STOP relays, safety gate monitors
## **Up to PL e of EN ISO 13849-1** PNOZ s4
## **Unit features**
## **Unit description**
- Positive-guided relay outputs:
- 3 safety contacts (N/O), instantaneous
- – 1 auxiliary contact (N/C), instantaneous
- 1 semiconductor output Connection options for:
The safety relay meets the requirements of EN 60947-5-1, EN 60204-1 and VDE 0113-1 and may be used in applications with
- E-STOP pushbuttons Safety gates Light barriers
- E-STOP pushbutton
- Safety gate limit switch
## **Safety features**
- Reset button
Safety relay for monitoring E-STOP pushbuttons, safety gates and light barriers.
## **Approvals**
## **PNOZ s4**
The relay meets the following safety requirements:
- Light barriers
- PSEN
- »» A connector can be used to conThe circuit is redundant with built-in nect 1 PNOZsigma contact exself-monitoring.
- » The safety function remains effective in the case of a component failure.
pander module
- » Operating modes can be set via rotary switch
- » LED indicator for: »
The correct opening and closing of the safety function relays is tested automatically in each on-off cycle. The unit has an electronic fuse.
- Supply voltage
- Input status, channel 1
- Input status, channel 2
- Switch status, safety contacts
- Reset circuit
- Error
Plug-in connection terminals (either spring-loaded terminal or screw terminal)
## **Block diagram**
- only when UB = 48 – 240 VAC/DC
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-395-2008-11
E-STOP relays, safety gate monitors
**==> picture [72 x 42] intentionally omitted <==**
## **Up to PL e of EN ISO 13849-1** PNOZ s4
## **Function description**
- Single-channel operation: no redundancy in the input circuit, earth faults in the reset and input circuit are detected.
- Dual-channel operation without detection of shorts across contacts: redundant input circuit, detects
- earth faults in the reset and input circuit,
- short circuits in the input circuit and, with a monitored reset, in the reset circuit too.
- Dual-channel operation with detection of shorts across contacts: redundant input circuit, detects
- earth faults in the reset and input
circuit,
- short circuits in the input circuit and, with a monitored reset, in the reset circuit too,
- shorts between contacts in the input circuit.
- Automatic start: Unit is active once the input circuit has been closed.
- Manual reset: Unit is active once the input circuit is closed and then the reset circuit is closed.
- Monitored reset with falling edge: Unit is active once
- the input circuit is closed and then the reset circuit is closed and opened again.
- the reset circuit is closed and then opened again once the in-
- put circuit is closed.
- � Monitored reset with rising edge: Unit is active once the input circuit is closed and once the reset circuit is closed after the waiting period has elapsed (see technical details).
- Reset with start-up test: The unit checks whether safety gates that are closed are opened and then closed again when supply voltage is applied.
- Increase in the number of available instantaneous safety contacts by connecting contact expander modules or external contactors/relays; A connector can be used to connect 1 PNOZsigma contact expander module.
## **Timing diagram**
**==> picture [483 x 170] intentionally omitted <==**
**----- Start of picture text -----**
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Key
� Power: Supply voltage � Out semi: Semiconductor output � b: Reset circuit closes before input
� Reset/start: Reset circuit S34 S34 Y32 circuit
**----- End of picture text -----**
- Reset/start: Reset circuit S34 S34
- t1: Switch-on delay
- Input: Input circuits S11-S12, S21S22
- � : Automatic reset
- t2: Delay-on de-energisation
- � : Manual reset
- Output safe: Safety contacts 13-14, 23-24, 33-34
- t3: Waiting period
- � : Monitored reset with rising edge
- t4: Waiting period reset circuit was closed
- � : Monitored reset with falling edge
- Output aux: Auxiliary contacts 4142
- a: Input circuit closes before reset circuit
## **Wiring**
- Please note: � Information given in the “Technical details” must be followed.
- Outputs 13-14, 23-24, 33-34 are safety contacts, output 41-42 is an auxiliary contact (e.g. for display).
- To prevent contact welding, a fuse should be connected before the output contacts (see technical details).
- Calculation of the max. cable runs lmax in the input circuit:
����� ������ ������� Rlmax = max. overall cable resistance (see technical details) Rl /km = cable resistance/km
- Use copper wire that can withstand 60/75 °C.
- Sufficient fuse protection must be provided on all output contacts with capacitive and inductive loads.
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-395-2008-11
## E-STOP relays, safety gate monitors
## **Up to PL e of EN ISO 13849-1** PNOZ s4
## **Preparing for operation**
## Supply voltage
**==> picture [370 x 470] intentionally omitted <==**
**----- Start of picture text -----**
Supply voltage AC DC
p----------A1 Q————L POT
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Input circuit
Input circuit Single-channel Dual-channel
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without detection of shorts across con- S11
I i]
tacts $12
$22
C ;
1 ;
E-STOP
with detection of shorts across contacts !
|
Safety gate
@ ty
without detection of shorts across con-
tacts l L.
~--- He
rc $11 - 1 S41
I $12
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1 $22 C
i_-----____! i
Safety gate
with detection of shorts across contacts
|
detection of shorts across contacts via Light beam device or safety switch with i] ee
ESPE i]
(only when UB = 24 VDC) A2
**----- End of picture text -----**
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-395-2008-11
## E-STOP relays, safety gate monitors
## **Up to PL e of EN ISO 13849-1** PNOZ s4
## Reset circuit/feedback loop
**==> picture [376 x 91] intentionally omitted <==**
**----- Start of picture text -----**
Reset circuit/feedback loop Reset circuit Feedback loop
Automatic reset poccccccHrrs
$12 I
I1 | 1I
! I H 43
i 14
loo LL
Manual/monitored reset
**----- End of picture text -----**
Semiconductor output
*Connect together the 0V connections on all the external power supplies
## Key
- S1/S2 E-STOP/safety gate switch S3 Reset button Switch operated Gate open
- Gate closed
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-395-2008-11
E-STOP relays, safety gate monitors
**==> picture [72 x 42] intentionally omitted <==**
## **Up to PL e of EN ISO 13849-1** PNOZ s4
## **Terminal configuration**
**==> picture [52 x 201] intentionally omitted <==**
## **Installation**
## **Install base unit without contact expander module:**
- Ensure that the plug terminator is inserted at the side of the unit.
## **Connect base unit and PNOZsigma contact expander module:**
- Remove the plug terminator at the side of the base unit and at the contact expander module.
- Connect the base unit and the contact expander module to the supplied connector before mounting the units to the DIN rail.
## **Installation in control cabinet**
- The safety relay should be installed in a control cabinet with a protection type of at least IP54.
## **Dimensions**
*with spring-loaded terminals
**==> picture [166 x 153] intentionally omitted <==**
**----- Start of picture text -----**
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**----- End of picture text -----**
- Use the notch on the rear of the unit to attach it to a DIN rail.
- Ensure the unit is mounted securely on a vertical DIN rail (35 mm) by using a fixing element (e.g. retaining bracket or an end angle).
- Push the unit upwards or downwards before lifting it from the DIN rail.
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-395-2008-11
## E-STOP relays, safety gate monitors
## **Up to PL e of EN ISO 13849-1** PNOZ s4
## **Notice**
## **Service life graph**
This data sheet is only intended for use during configuration. For installation and operation, please refer to the operating instructions supplied with the unit.
## UB 24 VDC
UB 48-240 VAC/DC
## **Technical details**
## **Electrical data**
|Supply voltage||
|---|---|
|Supply voltage UBDC|**24 V**|
|Supplyvoltage UB AC/DC|**48 - 240 V**|
|Voltage tolerance|**-15 %/+10 %**|
|Power consumption at UB AC|**5.0 VA**Order no.: 750134,751134|
|Power consumption at UB DC|**2.5 W**|
|Frequencyrange AC|**50 - 60 Hz**|
|Residual ripple DC|**20 %**, **160 %**|
|Voltage and current at||
|Input circuit DC:**24.0 V**|**50.0 mA**|
|Reset circuit DC:**24.0 V**|**50.0 mA**|
|Feedback loopDC:**24.0 V**|**50.0 mA**|
|Number of output contacts||
|Safety contacts (S) instantaneous:|**3**|
|Auxiliarycontacts(N/C):|**1**|
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-395-2008-11
E-STOP relays, safety gate monitors
**==> picture [72 x 42] intentionally omitted <==**
## **Up to PL e of EN ISO 13849-1** PNOZ s4
## **Electrical data**
Utilisation category in accordance with **EN 60947-4-1** Safety contacts: AC1 at **240 V**
Imin: **0.01 A** , Imax: **6.0 A** Order no.: 750134, 751134 **8.0 A** Order no.: 750104, 751104 Pmax: **1500 VA** Order no.: 750134, 751134 **2000 VA** Order no.: 750104, 751104 Imin: **0.01 A** , Imax: **6.0 A** Order no.: 750134, 751134 **8.0 A** Order no.: 750104, 751104 Pmax: **150 W** Order no.: 750134, 751134 **200 W** Order no.: 750104, 751104 Imin: **0.01 A** , Imax: **6.0 A** Order no.: 750134, 751134 **8.0 A** Order no.: 750104, 751104 Pmax: **1500 VA** Order no.: 750134, 751134 **2000 VA** Order no.: 750104, 751104 Imin: **0.01 A** , Imax: **6.0 A** Order no.: 750134, 751134 **8.0 A** Order no.: 750104, 751104 Pmax: **150 W** Order no.: 750134, 751134 **200 W** Order no.: 750104, 751104
Safety contacts: DC1 at **24 V** Auxiliary contacts: AC1 at **240 V** Auxiliary contacts: DC1 at **24 V**
Utilisation category in accordance with **EN 60947-5-1** Safety contacts: AC15 at **230 V**
Safety contacts: AC15 at **230 V** Imax: **3.0 A** Order no.: 750134, 751134 **6.0 A** Order no.: 750104, 751104 Safety contacts: DC13 at **24 V** (6 cycles/min) Imax: **4.0 A** Order no.: 750134, 751134 **5.0 A** Order no.: 750104, 751104 Auxiliary contacts: AC15 at **230 V** Imax: **3.0 A** Order no.: 750134, 751134 **6.0 A** Order no.: 750104, 751104 Auxiliary contacts: DC13 at **24 V** (6 cycles/min) Imax: **4.0 A** Order no.: 750134, 751134 **5.0 A** Order no.: 750104, 751104 Contact material **AgCuNi + 0.2 µm Au** External contact fuse protection (IK = 1 kA) to **EN 60947-5-1** Blow-out fuse, quick Safety contacts: **10 A** Order no.: 750104, 751104
Safety contacts: **10 A** Order no.: 750104, 751104 **6 A** Order no.: 750134, 751134 Auxiliary contacts: **10 A** Order no.: 750104, 751104 **6 A** Order no.: 750134, 751134 Blow-out fuse, slow Safety contacts: **4 A** Order no.: 750134, 751134 **6 A** Order no.: 750104, 751104 Auxiliary contacts: **4 A** Order no.: 750134, 751134 **6 A** Order no.: 750104, 751104 Circuit breaker 24 VAC/DC, characteristic B/C Safety contacts: **4 A** Order no.: 750134, 751134 **6 A** Order no.: 750104, 751104 Auxiliary contacts: **4 A** Order no.: 750134, 751134 **6 A** Order no.: 750104, 751104 Semiconductor outputs (short circuit proof) **24.0 V** DC, **20 mA** Max. overall cable resistance Rlmax input circuits, reset circuits single-channel at UB DC **30 Ohm** single-channel at UB AC **30 Ohm** Order no.: 750134, 751134 dual-channel without detect. of shorts across contacts at UB DC **30 Ohm** Order no.: 750134, 751134 **60 Ohm** Order no.: 750104, 751104 dual-channel without detect. of shorts across contacts at UB ACB AC AC **30 Ohm** Order no.: 750134, 751134 dual-channel with detect. of shorts across contacts at UB DCB DC DC **30 Ohm** dual-channel with detect. of shorts across contacts at UBB AC **30 Ohm** Order no.: 750134, 751134
dual-channel without detect. of shorts across contacts at UB ACB AC AC dual-channel with detect. of shorts across contacts at UB DCB DC DC dual-channel with detect. of shorts across contacts at UBB AC
## **Safety-related characteristic data**
**Performance level (PL)** in accordance with **EN ISO 13849-1** Safety contacts, instantaneous **e Category** of output contacts in accordance with **EN 954-1** , **EN ISO 13849-1** Safety contacts (S) instantaneous: **4**
## **e**
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-395-2008-11
E-STOP relays, safety gate monitors
**==> picture [72 x 42] intentionally omitted <==**
## **Up to PL e of EN ISO 13849-1** PNOZ s4
## **Safety-related characteristic data**
|**SIL claim limit (SIL CL)**in accordance with**EN IEC 62061**||
|---|---|
|Safetycontacts,instantaneous|**3**|
|Probability of dangerous failure per hour**(PFH**D**)**in accordance||
|with**EN IEC 62061**||
|Safetycontacts,instantaneous|**2.31E-09 1/h**|
|Mission time/Proof test interval inyears|**20**|
|**Times**||
|Switch-on delay||
|with automatic reset typ.|**170 ms**|
|with automatic reset max.|**300 ms**|
|with automatic reset after power on typ.|**350 ms**|
|with automatic reset after power on max.|**600 ms**|
|with manual reset typ.|**40 ms**|
|on monitored reset with rising edge typ.|**35 ms**|
|on monitored reset with rising edge max.|**50 ms**|
|on monitored reset with falling edge typ.|**55 ms**|
|on monitored reset with fallingedge max.|**70 ms**|
|Delay-on de-energisation||
|with E-STOP typ.|**10 ms**|
|with E-STOP max.|**20 ms**|
|with power failure typ.|**40 ms**|
|withpower failure max.|**60 ms**|
|Recovery time at max. switching frequency 1/s||
|after E-STOP|**50 ms**|
|afterpower failure|**100 ms**|
|Waiting period with a monitored reset||
|with rising edge|**120 ms**|
|with falling edge|**150 ms**Order no.: 750134, 751134|
||**250 ms**Order no.: 750104,751104|
|Min. start pulse duration with a monitored reset||
|with rising edge|**30 ms**|
|with fallingedge|**100 ms**|
|Simultaneity,channel 1 and 2|∞|
|Supplyinterruption before de-energisation|**20 ms**|
|**Environmental data**||
|EMC|**EN 60947-5-1**, **EN 61000-6-2**, **EN 61000-6-4**|
|Vibration to**EN 60068-2-6**||
|Frequency|**10 - 55 Hz**|
|Amplitude|**0.35 mm**|
|Climatic suitability|**EN 60068-2-78**|
|Airgap creepage in accordance with**EN 60947-1**||
|Pollution degree|**2**|
|Rated insulation voltage|**250 V**|
|Rated impulse withstand voltage|**4.0 kV**|
|Ambient temperature|**-10 - 55 °C**|
|Storage temperature|**-40 - 85 °C**|
|Protection type||
|Mounting (e.g. cabinet)|**IP54**|
|Housing|**IP40**|
|Terminals|**IP20**|
|**Mechanical data**||
|Housing material||
|Housing|**PC**|
|Front|**PC**|
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-395-2008-11
E-STOP relays, safety gate monitors
**==> picture [72 x 42] intentionally omitted <==**
## **Up to PL e of EN ISO 13849-1** PNOZ s4
## **Mechanical data**
|Cross section of external conductors with screw terminals||
|---|---|
|1 core flexible|**0.25 - 2.50 mm² , 24 - 12 AWG**Order no.: 750104, 750134|
|2 core, same cross section, flexible:||
|with crimp connectors, without insulating sleeve|**0.25 - 1.00 mm² , 24 - 16 AWG**Order no.: 750104, 750134|
|without crimpconnectors or with TWIN crimpconnectors|**0.20 - 1.50 mm², 24 - 16 AWG**Order no.: 750104,750134|
|Torque settingwith screw terminals|**0.50 Nm**Order no.: 750104,750134|
|Cross section of external conductors with spring-loaded termi-|**0.20 - 2.50 mm² , 24 - 12 AWG**Order no.: 751104, 751134|
|nals: Flexible with/without crimpconnectors||
|Spring-loaded terminals: Terminal points per connection|**2**Order no.: 751104, 751134|
|Strippinglength|**9 mm**Order no.: 751104,751134|
|Dimensions||
|Height|**102.0 mm**Order no.: 751104, 751134|
||**96.0 mm**Order no.: 750104, 750134|
|Width|**22.5 mm**|
|Depth|**120.0 mm**|
|Weight|**190 g**Order no.: 750104, 751104|
||**210g**Order no.: 750134,751134|
The standards current on **2006-04** apply.
## **Conventional thermal current**
|Number of contacts|Ith (A)at UB DC|Ith (A)at UB AC|
|---|---|---|
|1|**6.00 A**Order no.: 750134, 751134|**6.00 A**Order no.: 750134, 751134|
||**8.00 A**Order no.: 750104,751104||
|2|**6.00 A**|**6.00 A**Order no.: 750134,751134|
|3|**4.50 A**Order no.: 750134, 751134|**4.50 A**Order no.: 750134, 751134|
||**5.00 A**Order no.: 750104,751104||
## **Order reference**
|**Type**||**Features**||**Terminals**|**Order no.**|
|---|---|---|---|---|---|
|PNOZ s4|||24 VDC|With screw terminals|750 104|
|PNOZ s4|C||24 VDC|With spring-loaded terminals|751 104|
|PNOZ s4||48 – 240 VAC/DC||With screw terminals|750 134|
|PNOZ s4|C|48 – 240 VAC/DC||With spring-loaded terminals|751 134|
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-395-2008-11
## Links
- [View this product on Novapart](https://novapart.co/products/750134/safety-relay-240-v-3pst-no-din-rail-6-a-screw)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/pilz/750134/relay-safety-3pst-no-240vac-6a/dp/1704484)
---
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