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751109
General Purpose Relay, PnOZ s9 Series, Interface, 3PST-NO, SPST-NC, 24 VDC, 6 A
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- Manufacturer: PILZ
- Product type: Safety Relays
- Contact Configuration:3PST-NO, SPST-NC; Coil Voltage:24VDC; Contact Current:6A; Product Range:PnOZ s9 Series; Relay Mounting:DIN Rail; Coil Type:-; Contact Voltage VAC:240VAC; Rela
- SVHC: No SVHC (04-Feb-2026)
- IP Rating: -
- Coil Voltage: 24VDC
- Product Range: -
- Relay Mounting: DIN Rail
- Coil Resistance: 30ohm
- Contact Current: 6A
- Relay Terminals: Spring Clamp
- Contact Material: Silver Copper Nickel
- Contact Configuration: 3PST-NO, SPST-NC
- Contact Voltage AC Nom: 240V
- Contact Voltage DC Nom: -
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 204.21 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
Safe timer relay/contact expansion modules
## **up to PL e of EN ISO 13849-1** PNOZ s9
BildunterschriftContact expander module for increasing the number of available contacts, Pulse-on timer relay for step-by-step control of movement sequences, Delay-on energisation timer for unlocking an interlock with delay, Shutdown of application with delay-on de-energistaion, controlled stop
## **Approvals**
**PNOZ s9**
## **Unit features**
- Gertemerkmale Positive-guided relay outputs, either instantaneous, delay-on deenergisation (also retriggerable), pulsing or delay-on energisation: – 3 safety contacts
- 1 auxiliary contact
- Safe separation of safety contacts 17-18, 27-28, 37-38 from all other circuits
- Switch-on time, pulse time or delay-on de-energisation selectable
- LED for:
- Supply voltage
- Input status, channel 1
- Input status, channel 2
- Switch status channel 1/2
- Reset circuit
- Errors
- Plug-in connection terminals (either spring-loaded terminals or screw terminals)
## **Unit description**
GertebeschreibungThe unit meets the requirements of EN 60947-5-1, EN 60204-1 and VDE0113-1. In conjunction with a base unit the unit is used as a
- Contact expansion module to increase the number of contacts available on a base unit. Base units are all safety relays with feedback loop monitoring.
- The unit can also be used without a base unit as a pulse relay or safe timer.
The unit is designed for use with
- Safety relays from the PNOZ X, PNOZsigma, PNOZelog, PNOZmulti series
- Safety gate monitors from the PST series
- Two-hand relays from the PNOZsigma, P2HZ series
## **Safety features**
][Sicherheitseigenschaften_Kontakterweiterung_mit_RFKThe unit meets the following safety requirements:
- The unit monitors its own output contacts.
- The safety function remains effective in the case of a component failure.
- Earth fault in the feedback loop is detected.
- Earth fault in the input circuit: The output relays de-energise and the safety contacts open.
- Sicherheitseigenschaften Zusatz - Sicherung DC_PNOZ The unit has an electronic fuse.
- Pulse relay
- In accordance with EN ISO 12100-1 and
- EN ISO 12100-2 (inching circuit for limited movement of hazardous machine components during installation, set up and positioning)
- in safety circuits in accordance with VDE 0113 and EN 60204-1
- (e.g. on movable guards)
- Safe timer relays
- in accordance with EN 1088 (release with delay through timer)
- in safety circuits in accordance with VDE 0113-1 and EN 602041 (e.g. on movable guards)
The category that can be achieved in accordance with EN 954-1 and EN ISO 13849-1 depends on the category of the base unit. The contact expansion module may not exceed this.
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
1001991-EN-03-2011-11
Safe timer relay/contact expansion modules
**==> picture [72 x 42] intentionally omitted <==**
## **up to PL e of EN ISO 13849-1** PNOZ s9
## **Block diagram**
**==> picture [483 x 201] intentionally omitted <==**
**----- Start of picture text -----**<br>
B l o c kshatbild<br>�<br>�� l k i o csh atb nure ld_][B Tg �� ��� ��������<br>�<br>�����<br>� ��<br>�����<br>��<br>�����<br>��� �� ���� ��<br>���� ����<br>���������<br>**----- End of picture text -----**<br>
*Safe separation in accordance with EN 60947-1, 6 kV
## **Function description**
- Funktionsbeschreibung Delay-on de-energisation, not retriggerable
If the supply voltage at the input circuit is interrupted, the safety contacts will open once the set release time has elapsed, even if the safety function is cancelled during the delay time. The unit cannot be reactivated until the delay time has elapsed.
Delay-on de-energisation, retriggerable (only possible as a standalone application or with the PNOZsigma base unit!) If the supply voltage at the input circuit is interrupted, the safety contacts will open once the set release time has elapsed. If the safety function is cancelled during the delay time (e.g. safety gate closed), the unit will remain active.
immediately and the auxiliary contact will be closed.
- Delay-on energisation
The set delay time is started when supply voltage is applied, the feedback loop is closed and finally the input circuit is closed.
If the input circuit and feedback loop are closed once the delay time has elapsed, the safety contacts will close and the auxiliary contact will be opened. If the input circuit is opened for more than 10 ms, the safety contacts will open immediately and the auxiliary contact will be closed.
Funktionsbeschreibung_Erweiterungsgerätwith PNOZsigma base unit:
- Dual-channel operation via PNOZsigma connector
- with other base units or without base unit:
- Single-channel operation: one input circuit affects the output relays
- Pulse on switching on The safety contacts close when supply voltage is applied, the feedback loop is closed and finally the input circuit is closed. The safety contacts are reopened once the pulse time has elapsed. If the input circuit is opened for more than 10 ms during the pulse time, the safety contacts will open
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
1001991-EN-03-2011-11
Safe timer relay/contact expansion modules
**==> picture [72 x 42] intentionally omitted <==**
## **up to PL e of EN ISO 13849-1** PNOZ s9
## **Timing diagrams**
## **Delay-on de-energisation, not retriggerable**
**==> picture [483 x 128] intentionally omitted <==**
**----- Start of picture text -----**<br>
im Zetd a gr<br>� �<br>�����<br>�����<br>�����������<br>�����������<br>��������<br>�� �� �� ��<br>**----- End of picture text -----**<br>
## **Key**
- Power: Supply voltage
- Input: Input circuit S32
- Output safe: Safety contacts 17-18, 27-28, 37-38
- Feedback: Feedback loop S34
- t1: Switch-on delay
- tv: Delay time
- : Delay-on de-energisation with the time tv
- : No retriggering in the time tv
- Output aux: Auxiliary contact 45-46
## **Delay-on de-energisation, retriggerable**
**==> picture [483 x 130] intentionally omitted <==**
**----- Start of picture text -----**<br>
im Zetd a gr<br>� �<br>�����<br>�����<br>�����������<br>�����������<br>��������<br>��<br>�� �� �� ��<br>����<br>**----- End of picture text -----**<br>
## **Key**
- Power: Supply voltage
- Input: Input circuit S32
- Output safe: Safety contacts 17-18, 27-28, 37-38
- Output aux: Auxiliary contact 45-46
- Feedback: Feedback loop S34
- t1: Switch-on delay
- tv: Delay-on de-energisation
- tges: Overall delay time
- : Delay-on de-energisation with the time tv
- : Retriggering in the time tv for overall delay-on de-energisation t ges
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
1001991-EN-03-2011-11
Safe timer relay/contact expansion modules
**==> picture [72 x 42] intentionally omitted <==**
## **up to PL e of EN ISO 13849-1** PNOZ s9
## **Pulse on switching on**
**==> picture [483 x 134] intentionally omitted <==**
**----- Start of picture text -----**<br>
im Zetd a gr<br>� � � �<br>���������<br>�����<br>�����<br>�����������<br>�����������<br>��������<br>��<br>�� �� �� �� �� ��<br>**----- End of picture text -----**<br>
## **Key**
- Power: Supply voltage
- Input: Input circuit S32
- Output safe: Safety contacts 17-18, 27-28, 37-38
- Output aux: Auxiliary contact 45-46
- Feedback: Feedback loop S34
- t1: Switch-on delay
- t2: Delay-on de-energisation
- tw: Pulse time
- : Normal operating cycle
- : Fault: Input circuit opened too early
- : Fault: Feedback loop closed too late
- : Normal operating cycle with supply interruption < 10 ms
## **Delay-on energisation**
**==> picture [483 x 127] intentionally omitted <==**
**----- Start of picture text -----**<br>
im Zetd a gr<br>� � � �<br>���������<br>�����<br>�����<br>�����������<br>�����������<br>��������<br>�� �� �� �� ��<br>**----- End of picture text -----**<br>
## **Key**
- Power: Supply voltage
- Input: Input circuit S32
- Output safe: Safety contacts 17-18, 27-28, 37-38
- Output aux: Auxiliary contact 45-46
- t2: Delay-on de-energisation
- tv: Delay time
- : Normal operating cycle
- : Fault: Input circuit opened too early
- : Fault: Feedback loop closed too late after t2 elapsed
- : Normal operating cycle with supply interruption < 10 ms
- Feedback: Feedback loop S34
## **Wiring**
][Verdrahtung_Si_unverz_1Hi_unverzPlease note:
- Information given in the “Technical details” must be followed.
- Outputs 17-18, 27-28, 37-38 are safety contacts, output 45-46 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
1001991-EN-03-2011-11
## Safe timer relay/contact expansion modules
## **up to PL e of EN ISO 13849-1** PNOZ s9
## **Preparing for operation**
- Supply voltage
**==> picture [334 x 8] intentionally omitted <==**
**----- Start of picture text -----**<br>
Supply voltage AC DC<br>**----- End of picture text -----**<br>
- 1-channel input circuit/feedback loop
**==> picture [475 x 222] intentionally omitted <==**
**----- Start of picture text -----**<br>
Input circuit Input circuit Feedback circuit<br>Without base unit (standalone)<br>reer:$32 Q—— +s3 24 rpNozsS Saad $3<br>| I V Dc | $34; Career<br>A2 | At 24V DC<br>| 0——_0 v loi eeA2g——____ 0 V<br>Base unit: 24VDC<br>Safety relay PNOZ X<br>24V --------, [ ¢---------5<br> DC PNOZ X $34 PNOZs9;<br>ia n. c al pNozeo! feedback O——04 5<br>1 $32 PNOZs H loo;Pp o—8 |<br>TTTPNOZ X 1 $34 H| ~-----ov ee pee! no !<br>OV TTT pe — ee ee ee ee \ The inputs that evaluate the feedback loop<br>will depend on the base unit and applica-<br>tion.<br>Base unit: 24VDC<br>Safety relay PNOZelog; driven via semi- --------, poo n aan<br>conductor outputs PNOZelog ] $34 PNOZs9 |<br>l I<br>(24 VDC) 24V I 45<br>**----- End of picture text -----**<br>
The inputs that evaluate the feedback loop will depend on the base unit and application. * PNOZ e1p only; all other PNOZelog safety relays without delay-on de-energisation with PNOZ s9
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
1001991-EN-03-2011-11
Safe timer relay/contact expansion modules
## **up to PL e of EN ISO 13849-1** PNOZ s9
## 2-channel input circuit
**==> picture [441 x 136] intentionally omitted <==**
**----- Start of picture text -----**<br>
Base unit: Safety relays Base unit: Safety relays<br>PNOZ s3, PNOZ s4, PNOZ s5 PNOZ s1, PNOZ s2<br>The input circuit is connected and evaluat-ed via the connector. ----------) p---------- == SSS SSS<br>snwe e s PNOZ 391 Safifm pas PN<br>PNOZ \ 'LOs34<br>PNOZ s3 Be | at<br>P NOZNOZsos5s4 ETre28 |I PNOZPNOZ s1s2 eeEgz<br>—— ee ee ee ee a<br>Base unit: Two-hand control unit Base unit: Two-hand control unit<br>PNOZ s6 PNOZ s6.1<br>The input circuit is connected and evaluat- eS CO | a CO<br>ed via the connector. $12 O—- O S34 PNOZ s9| $24 O—- O $34<br>**----- End of picture text -----**<br>
## Application
without feedback loop with feedback loop without base unit
## Key
S3 Reset button
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
1001991-EN-03-2011-11
Safe timer relay/contact expansion modules
**==> picture [72 x 42] intentionally omitted <==**
## **up to PL e of EN ISO 13849-1** PNOZ s9
## **Terminal configuration**
**==> picture [316 x 211] intentionally omitted <==**
**----- Start of picture text -----**<br>
K nlem bu g<br>**----- End of picture text -----**<br>
## **Installation**
## **Dimensions**
> ][Montage_PNOZsigma Erweiterungsgert **Install contact expander module** Abmessungen*with spring-loaded terminals
## **without base unit:**
- 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.
**==> picture [131 x 151] intentionally omitted <==**
**----- Start of picture text -----**<br>
����������<br>����<br>������������� �������<br>������������<br>**----- End of picture text -----**<br>
- Use the notch on the rear of the unit to attach it to a DIN rail (35 mm).
- When installed vertically: Secure the unit by using a fixing element (e.g. retaining brakket or 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
1001991-EN-03-2011-11
Safe timer relay/contact expansion modules
## **up to PL e of EN ISO 13849-1** PNOZ s9
## **NOTICE**
][Wichtig_PDBThis data sheet is only intended for use during configuration. Please refer to the operating manual for installation and operation.
## **Service life graph**
Lebensdauerkurve_Relais_Text vor KurveThe service life graphs indicate the Lkv **e** bnsda **ur** number of cycles from which failures fo}Oo due to wear must be expected. The oO wear is mainly caused by the electrical xog 10000 -SSa SS RS load; the mechanical load is negligible.
> Lebensdauerkurve_Relais_Text nach Kurve_SIF Bsp **Example**
- Inductive load: 0,2 A
- Utilisation category: AC15
- Contact service life: 2,000,000 cycles
Provided the application requires fewer than 2,000,000 cycles, the PFH value (see technical details) can be used in the calculation.
To increase the service life, sufficient spark suppression must be provided on all output contacts. With capacitive loads, any power surges that occur must be noted. With contactors, use freewheel diodes for spark suppression.
## **Technical details**
|**Electrical data**||
|---|---|
|Supply voltage||
|Supplyvoltage UB DC|**24 V**|
|Voltage tolerance|**-20 %/+20 %**|
|Power consumption at UB DC|**2.0 W**|
|Residual ripple DC|**20 %**|
|Typ. supplycurrent at A1|**70 mA**|
|Voltage and current at||
|Input circuit DC:|**15.0 mA**|
|Feedback loopDC:**24.0 V**|**15.0 mA**|
|Max. inrush current impulse||
|A1|**0.70 A**|
|Input circuit|**0.10 A**|
|Feedback loop|**0.10 A**|
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
1001991-EN-03-2011-11
Safe timer relay/contact expansion modules
**==> picture [72 x 42] intentionally omitted <==**
## **up to PL e of EN ISO 13849-1** PNOZ s9
## **Electrical data**
Number of output contacts Safety contacts (N/O), delayed: **3** Auxiliary contacts (N/C), delayed: **1** Utilisation category in accordance with **EN 60947-4-1** Safety contacts: AC1 at **240 V** I
|Safety contacts: AC1 at**240 V**|Imin:**0.01 A**, Imax:**6.0 A**|
|---|---|
||Pmax:**1500 VA**|
|Safety contacts: DC1 at**24 V**|Imin:**0.01 A**, Imax:**6.0 A**|
||Pmax:**150 W**|
|Auxiliary contacts: AC1 at**240 V**|Imin:**0.01 A**, Imax:**6.0 A**|
||Pmax:**1500 VA**|
|Auxiliary contacts: DC1 at**24 V**|Imin:**0.01 A**, Imax:**6.0 A**|
||Pmax:**150 W**|
|Utilisation category in accordance with**EN 60947-5-1**||
|Safety contacts: AC15 at**230 V**|Imax:**5.0 A**|
|Safety contacts: DC13 at**24 V**(6 cycles/min)|Imax:**5.0 A**|
|Auxiliary contacts: AC15 at**230 V**|Imax:**5.0 A**|
|Auxiliarycontacts: DC13 at**24 V** (6 cycles/min)|Imax:**5.0 A**|
|Conventional thermal current|**6.0 A**|
|Contact material|**AgCuNi + 0.2µm Au**|
|External contact fuse protection (IK= 1 kA) to**EN 60947-5-1**||
|Blow-out fuse, quick||
|Safety contacts:|**10 A**|
|Auxiliary contacts:|**10 A**|
|Blow-out fuse, slow||
|Safety contacts:|**6 A**|
|Auxiliary contacts:|**6 A**|
|Circuit breaker 24 VAC/DC, characteristic B/C||
|Safety contacts:|**6 A**|
|Auxiliarycontacts:|**6 A**|
|Max. overall cable resistance Rlmax||
|A1/A2|**20 Ohm**|
|Input circuit|**30 Ohm**|
|Feedback loop|**30 Ohm**|
|**Safety-related characteristic data**||
|PL in accordance with**EN ISO 13849-1: 2006**|**PL e** (**Cat. 4**)|
|Categoryin accordance with**EN 954-1**|**Cat. 4**|
|SIL CL in accordance with**EN IEC 62061**|**SIL CL 3**|
|PFH in accordance with**EN IEC 62061**|**2.34E-09**|
|SIL in accordance with**IEC 61511**|**SIL 3**|
|PFD in accordance with**IEC 61511**|**2.75E-05**|
|TM [year]in accordance with**EN ISO 13849-1: 2006**|**20**|
|**Times**||
|Switch-on delay||
|with manual reset typ.|**60 ms**|
|with manual reset max.|**80 ms**|
|Delay-on de-energisation||
|with E-STOP typ.|**40 ms**|
|with E-STOP max.|**50 ms**|
|Recovery time at max. switching frequency 1/s||
|afterpower failure|**800 ms**|
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
1001991-EN-03-2011-11
Safe timer relay/contact expansion modules
**==> picture [72 x 42] intentionally omitted <==**
## **up to PL e of EN ISO 13849-1** PNOZ s9
## **Times**
Delay time tV: selectable **0,00 s** ; **0,10 s** ; **0,20 s** ; **0,30 s** ; **0,40 s** ; **0,50 s** ; **0,60 s** ; **0,70 s** ; **0,80 s** ; **1,00 s** ; **1,50 s** ; **2,00 s** ; **2,50 s** ; **3,00 s** ; **3,50 s** ; **4,00 s** ; **5,00 s** ; **6,00 s** ; **7,00 s** ; **8,00 s** ; **10,00 s** ; **12,00 s** ; **14,00 s** ; **15,00 s** ; **16,00 s** ; **20,00 s** ; **25,00 s** ; **30,00 s** ; **35,00 s** ; **40,00 s** ; **50,00 s** ; **60,00 s** ; **70,00 s** ; **80,00 s** ; **90,00 s** ; **100,00 s** ; **120,00 s** ; **140,00 s** ; **150,00 s** ; **160,00 s** ; **180,00 s** ; **200,00 s** ; **210,00 s** ; **240,00 s** ; **300,00 s** Repetition accuracy **+/-1 % + +/-20 ms** Repetition accuracy in the case of a fault **+/-15 % + +/-20 ms** Time accuracy **+/-1 % + +/-20 ms** Supply interruption before de-energisation **10 ms** Supply interruption before de-energisation in the input circuit **10.0 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** Overvoltage category **III** Rated insulation voltage **250 V** Rated impulse withstand voltage **6.00 kV** Ambient temperature **-15 - 55 °C** Storage temperature **-40 - 85 °C** Protection type Mounting (e.g. cabinet) **IP54** Housing **IP40** Terminals **IP 20 Mechanical data** Housing material Housing **PC** Front **PC** Cross section of external conductors with screw terminals 1 core flexible **0.25 - 2.50 mm² , 24 - 12 AWG** No. 750109 2 core, same cross section, flexible: with crimp connectors, without insulating sleeve **0.25 - 1.00 mm² , 24 - 16 AWG** No. 750109 without crimp connectors or with TWIN crimp connectors **0.20 - 1.50 mm² , 24 - 16 AWG** No. 750109 Torque setting with screw terminals **0.50 Nm** No. 750109 Cross section of external conductors with spring-loaded termi- **0.20 - 2.50 mm² , 24 - 12 AWG** No. 751109, 751189 nals: Flexible with/without crimp connectors Spring-loaded terminals: Terminal points per connection **2** No. 751109, 751189 Stripping length **9 mm** No. 751109, 751189 Dimensions Height **100.0 mm** No. 751109, 751189 **96.0 mm** No. 750109 Width **17.5 mm** Depth **120.0 mm** Weight **175 g** No. 751189 **176 g** No. 751109 **177 g** No. 750109
Technische Daten_Satz No.
## No. stands for order number.
Si-Kennzahlen_Zusatz_Relais_Lebensdauer_PDBIt is essential to consider the relay's service life graphs. The relay outputs' safety-related characteristic data is only valid if the values in the service life graphs are met.
The PFH value depends on the switching frequency and the load on the relay output.
If the service life graphs are not accessible, the stated PFH value can be
used irrespective of the switching frequency and the load, as the PFH value already considers the relay's B10d value as well as the failure rates of the other components.
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
1001991-EN-03-2011-11
Safe timer relay/contact expansion modules
**==> picture [72 x 42] intentionally omitted <==**
## **up to PL e of EN ISO 13849-1** PNOZ s9
All the units used within a safety function must be considered when calculating the safety characteristic data.
## Si_Kennzahlen_Erläuterung_2 **INFORMATION**
A safety function's SIL/PL values are **not** identical to the SIL/PL values of the units that are used and may be different. We recommend that you use the PAScal software tool to calculate the safety function's SIL/PL values.
The standards current on **2007-02** apply.
|**Order reference**|||||
|---|---|---|---|---|
||||||
|**Type**|**Features**||**Terminals**|**Order no.**|
|PNOZ s9||24 VDC|With screw terminals|750 109|
|PNOZ s9 C||24 VDC|With spring-loaded terminals|751 109|
|PNOZ s9 C||24 VDC|With spring-loaded terminals|751 189|
|(coated version)|||||
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
1001991-EN-03-2011-11
Updated at June 5, 2026
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When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
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We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →