Pilz PZE X4.1P User manual

PZE X4.1P
Operating Manual-1003203-EN-09
}Safety relays

Preface
This document is the original document.
All rights to this documentation are reserved by Pilz GmbH & Co. KG. Copies may be made
for the user's internal purposes. Suggestions and comments for improving this documenta-
tion will be gratefully received.
Source code from third-party manufacturers or open source software has been used for
some components. The relevant licence information is available on the Internet on the Pilz
homepage.
Pilz®, PIT®, PMI®, PNOZ®, Primo®, PSEN®, PSS®, PVIS®, SafetyBUS p®,
SafetyEYE®, SafetyNET p®, the spirit of safety® are registered and protected trademarks
of Pilz GmbH & Co. KG in some countries.
SD means Secure Digital

Contents
Operating Manual PZE X4.1P
1003203-EN-09 | 3
Introduction ............................................................................................................................4
Validity of documentation.......................................................................................................... 4
Using the documentation .......................................................................................................... 4
Definition of symbols................................................................................................................. 4
Safety ...................................................................................................................................... 5
Intended use ............................................................................................................................. 5
Safety regulations ..................................................................................................................... 5
Safety assessment ................................................................................................................... 5
Use of qualified personnel ........................................................................................................ 6
Warranty and liability ................................................................................................................ 6
Disposal .................................................................................................................................... 6
For your safety.......................................................................................................................... 6
Unit features ...........................................................................................................................7
Safety features ....................................................................................................................... 7
Block diagram/terminal configuration ................................................................................. 8
Type: DC................................................................................................................................... 8
Type: AC/DC............................................................................................................................. 8
Function description ............................................................................................................. 9
Installation ..............................................................................................................................9
Wiring ......................................................................................................................................9
Preparing for operation ......................................................................................................... 10
Operation ................................................................................................................................11
Status indicators ....................................................................................................................... 11
Faults – Interference .............................................................................................................. 11
Dimensions in mm .................................................................................................................12
Technical details ....................................................................................................................12
Safety characteristic data ......................................................................................................... 20
Supplementary data ..............................................................................................................20
Service life graph ...................................................................................................................... 21
Remove plug-in terminals ..................................................................................................... 22
Order reference ......................................................................................................................22
EC declaration of conformity ................................................................................................ 23

PZE X4.1P
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1003203-EN-09 | 4
Introduction
Validity of documentation
This documentation is valid for the product PZE X4.1P. It is valid until new documentation is
published.
This operating manual explains the function and operation, describes the installation and
provides guidelines on how to connect the product.
Using the documentation
This document is intended for instruction. Only install and commission the product if you
have read and understood this document. The document should be retained for future ref-
erence.
Definition of symbols
Information that is particularly important is identified as follows:
DANGER!
This warning must be heeded! It warns of a hazardous situation that poses
an immediate threat of serious injury and death and indicates preventive
measures that can be taken.
WARNING!
This warning must be heeded! It warns of a hazardous situation that could
lead to serious injury and death and indicates preventive measures that can
be taken.
CAUTION!
This refers to a hazard that can lead to a less serious or minor injury plus
material damage, and also provides information on preventive measures
that can be taken.
NOTICE
This describes a situation in which the product or devices could be dam-
aged and also provides information on preventive measures that can be
taken. It also highlights areas within the text that are of particular import-
ance.

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1003203-EN-09 | 5
INFORMATION
This gives advice on applications and provides information on special fea-
tures.
Safety
Intended use
The contact expansion module PZE X4.1P meets the requirements of EN 60947-5-1 and
EN 60204- 1. It is an expansion module for increasing the number of contacts available on
a base unit. Base units are all
}Safety relays with feedback loop
}programmable safety systems with feedback loop
}Units with OSSD semiconductor outputs and feedback loop
The max. achievable safety level depends on the base unit. The expansion module may not
exceed this. The safety-related characteristic values stated under safety-related character-
istic data [ 20] can only be achieved if the base unit also exhibits these safety charac-
teristic values.
The following is deemed improper use in particular
}Any component, technical or electrical modification to the product,
}Use of the product outside the areas described in this manual,
}Use of the product outside the technical details (see Technical details [ 12]).
NOTICE
EMC-compliant electrical installation
The product is designed for use in an industrial environment. The product
may cause interference if installed in other environments. If installed in other
environments, measures should be taken to comply with the applicable
standards and directives for the respective installation site with regard to in-
terference.
Safety regulations
Safety assessment
Before using a device, a safety assessment in accordance with the Machinery Directive is
required.
The product as an individual component fulfils the functional safety requirements in accord-
ance with EN ISO 13849 and EN 62061. However, this does not guarantee the functional
safety of the overall plant/machine. To achieve the relevant safety level of the overall plant/
machine’s required safety functions, each safety function needs to be considered separ-
ately.

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Operating Manual PZE X4.1P
1003203-EN-09 | 6
Use of qualified personnel
The products may only be assembled, installed, programmed, commissioned, operated,
maintained and decommissioned by persons who are competent to do so.
A competent person is a qualified and knowledgeable person who, because of their train-
ing, experience and current professional activity, has the specialist knowledge required. To
be able to inspect, assess and operate devices, systems and machines, the person has to
be informed of the state of the art and the applicable national, European and international
laws, directives and standards.
It is the company’s responsibility only to employ personnel who
}Are familiar with the basic regulations concerning health and safety / accident prevention,
}Have read and understood the information provided in the section entitled Safety
}Have a good knowledge of the generic and specialist standards applicable to the specific
application.
Warranty and liability
All claims to warranty and liability will be rendered invalid if
}The product was used contrary to the purpose for which it is intended,
}Damage can be attributed to not having followed the guidelines in the manual,
}Operating personnel are not suitably qualified,
}Any type of modification has been made (e.g. exchanging components on the PCB
boards, soldering work etc.).
Disposal
}In safety-related applications, please comply with the mission time TM in the safety-related
characteristic data.
}When decommissioning, please comply with local regulations regarding the disposal of
electronic devices (e.g. Electrical and Electronic Equipment Act).
For your safety
The unit meets all the necessary conditions for safe operation. However, please note the
following:
}Note for overvoltage category III: If voltages higher than low voltage (>50 VAC or >120
VDC) are present on the unit, connected control elements and sensors must have a rated
insulation voltage of at least 250 V.

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Operating Manual PZE X4.1P
1003203-EN-09 | 7
Unit features
}Positive-guided relay outputs:
– 4 safety contacts (N/O), instantaneous
}LED display for:
– Supply voltage
– Switch status of the safety contacts
}Connection for feedback loop
}Suitable to be driven via OSSD
}Operation: Single or dual-channel
}Plug-in connection terminals (either spring-loaded terminal or screw terminal)
}See order reference for unit types
Safety features
The unit meets the following safety requirements:
}The contact expansion module expands an existing circuit. As the output relays are mon-
itored via the base unit's feedback loop, the safety functions on the existing circuit are
transferred to the contact expandsion module.
}The safety function remains effective in the case of a component failure.
}Earth fault in the feedback loop:
Detected, depending on the base unit that is used.
}Earth fault in the input circuit:
The output relays de-energise and the safety contacts open.

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Block diagram/terminal configuration
Type: DC
}UB: 24 DC; Order no. 777587, 787587
PZE X4.1P
*Safe separation from non-marked area in accordance with EN 60947-1,
6 kV, basic insulation between all safety contacts.
Type: AC/DC
}UB: 24 - 240 VAC/DC; Order no. 777588, 787588
PZE X4.1P
*Insulation between the non-marked area and the relay contacts: Basic insulation (over-
voltage category III), Protective separation (overvoltage category II)

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Function description
The contact expansion module PZE X4.1P is an add-on device without delay-on de-ener-
gisation. It is used to expand a safety circuit. The contact expansion module is driven by a
base unit (e. g. emergency stop relay). When operating voltage is supplied the "POWER"
LED will light.
}Functional procedure once the input circuit is closed (e.g. safety contacts on the base unit
are closed):
– The safety contacts 13-14, 23-24, 33-34 and 43-44 close.
– The LEDs "CH.1" and "CH.2" are lit.
}Functional procedure once the input circuit is opened (e.g. safety contacts on the base
unit are opened):
– Safety contacts 13-14, 23-24, 33-34 and 43-44 are opened redundantly.
– The LEDs "CH.1" and "CH.2" go out.
Installation
}The unit should be installed in a control cabinet with a protection type of at least IP54.
}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 bracket
or end angle).
Wiring
Please note:
}Information given in the "Technical details [ 12]" must be followed.
}The outputs 13-14, 23-24, 33-34 and 43-44 are safety contacts.
}Do not connect undesignated terminals.
}To prevent contact welding, a fuse should be connected before the output contacts (see
Technical details [ 12]).
}Calculation of the max. cable length lmax in the input circuit:
Rlmax
Rl / km
Imax =
Rlmax = max. overall cable resistance (see Technical details [ 12])
Rl/km = cable resistance/km
}Use copper wiring with a temperature stability of 60/75 °C.
}To prevent EMC interferences (particularly common-mode interferences) the measures
described in EN60204-1 must be executed. This includes the separate routing of cables
of the control circuits (input, start and feedback loop) from other cables for energy trans-
mission or the shielding of cables, for example.
}Adequate protection must be provided on all output contacts with capacitive and inductive
loads.
}Do not switch low currents using contacts that have been used previously with high cur-
rents.

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}On 24 VDC devices:
The power supply must comply with the regulations for extra low voltages with protective
electrical separation (SELV, PELV) in accordance with VDE 0100, Part 410.
Preparing for operation
Supply voltage 24 – 240 V AC/DC 24 VDC
Only when driven via safety relay
with safety contacts
A1
A2
L1
N
FE
A1
A2
L+
L-
Input circuit Single-channel Dual-channel
Base unit:
Safety relay PNOZX
Driven via safety contacts
K1
K2
U
PZE
K1
K2
U
PZE
Base unit:
PNOZelog safety relay, program-
mable safety system or
PNOZmulti
Driven via safe semiconductor
outputs (24 VDC)
K1
K2
U
PZE
A20 V
O1
L-
K1
K2
U
PZE
A20 V
O1
L-
O2
Driven via OSSD semiconductor
outputs (24 VDC)
A1
A2 K1
K2
24 V DC
GND
PZE
Feedback loop Base unit: Safety relay PNOZX Base unit: PNOZelog safety relay,
programmable safety system or
PNOZmulti
Y1, Y2 and Input are inputs on
the base unit; they evaluate the
feedback loop

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Operation
When the relay outputs are switched on, the mechanical contact on the relay cannot be
tested automatically. Depending on the operational environment, measures to detect the
non-opening of switching elements may be required under some circumstances.
When the product is used in accordance with the European Machinery Directive, a check
must be carried out to ensure that the safety contacts on the relay outputs open correctly.
Open the safety contacts of the contact expansion module (switch off outputs of the base
unit) and start the base unit again so that the internal diagnostics can check that the safety
contacts open correctly
}for SIL CL 3/PL e at least 1x per month
}for SIL CL 2/PL d at least 1x per year
NOTICE
The safety function should be checked after initial commissioning and each
time the plant/machine is changed. The safety functions may only be
checked by qualified personnel.
Status indicators
LEDs indicate the status and errors during operation:
LED on
POWER
Supply voltage is present.
CH.1
Safety contacts of channel 1 are closed.
CH.2
Safety contacts of channel 2 are closed.
Faults – Interference
By closing or interrupting the input circuit you can check whether the unit switches on or off
correctly.
For safety reasons, the unit cannot be started if the following faults are present:
}Contact malfunction: As the contact block is connected to a base unit,
reactivation will not be possible if the contacts have welded after the input circuit has
opened.
}Open circuit, short circuit or earth fault ( e.g. in the input circuit)

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Dimensions in mm
* with spring-loaded terminals
Technical details
Order no. 777587 – 787587
See below for more order numbers
General 777587 787587
Certifications
CCC, CE, EAC (Eurasian), TÜV,
cULus Listed
CCC, CE, EAC (Eurasian), TÜV,
cULus Listed
Electrical data 777587 787587
Supply voltage
Voltage 24 V 24 V
Kind DC DC
Voltage tolerance -15 %/+10 % -15 %/+10 %
Output of external power supply
(DC) 2,5 W 2,5 W
Residual ripple DC 20 % 20 %
Duty cycle 100 % 100 %
Max. inrush current impulse
Current pulse, A1 1,7 A 1,7 A
Pulse duration, A1 1,5 ms 1,5 ms
Inputs 777587 787587
Number 2 2
Voltage at
Input circuit DC 24 V 24 V
Current at
Input circuit DC 35 mA 35 mA

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Inputs 777587 787587
Max. overall cable resistance Rl-
max
Single-channel at UB DC 30 Ohm 30 Ohm
Dual-channel without detection
of shorts across contacts at UB
DC 60 Ohm 60 Ohm
Relay outputs 777587 787587
Number of output contacts
Safety contacts (N/O), instant-
aneous 4 4
Max. short circuit current IK 1 kA 1 kA
Utilisation category
In accordance with the standard EN 60947-4-1 EN 60947-4-1
Utilisation category of safety con-
tacts
AC1 at 240 V 240 V
Min. current 0,01 A 0,01 A
Max. current 6 A 6 A
Max. power 1500 VA 1500 VA
DC1 at 24 V 24 V
Min. current 0,01 A 0,01 A
Max. current 6 A 6 A
Max. power 150 W 150 W
Utilisation category
In accordance with the standard EN 60947-5-1 EN 60947-5-1
Utilisation category of safety con-
tacts
AC15 at 230 V 230 V
Max. current 3 A 3 A
DC13 (6 cycles/min) at 24 V 24 V
Max. current 4 A 4 A
Utilisation category in accordance
with UL
Voltage 250 V AC G.U. (same polarity) 250 V AC G.U. (same polarity)
With current 6 A 6 A
Voltage 24 V DC G. U. 24 V DC G. U.
With current 6 A 6 A
Pilot Duty B300, R300 B300, R300
External contact fuse protection,
safety contacts
In accordance with the standard EN 60947-5-1 EN 60947-5-1
Max. melting integral 66 A²s 66 A²s
Blow-out fuse, quick 6 A 6 A
Blow-out fuse, slow 4 A 4 A
Blow-out fuse, gG 6 A 6 A
Circuit breaker 24V AC/DC,
characteristic B/C 4 A 4 A

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Relay outputs 777587 787587
Contact material AgCuNi + 0,2 µm Au AgCuNi + 0,2 µm Au
Conventional thermal current
while loading several contacts
777587 787587
Ith per contact at UB DC;
AC1:240V,DC1:24V
Conv. therm. current with 1 con-
tact 6 A 6 A
Conv. therm. current with 2 con-
tacts 6 A 6 A
Conv. therm. current with 3 con-
tacts 4,5 A 4,5 A
Conv. therm. current with 4 con-
tacts 3,5 A 3,5 A
Times 777587 787587
Switch-on delay
With automatic start typ. 15 ms 15 ms
With automatic start max. 20 ms 20 ms
With automatic start after power
on typ. 15 ms 15 ms
With automatic start after power
on max. 30 ms 30 ms
Delay-on de-energisation
With E-STOP typ. 10 ms 10 ms
With E-STOP max. 20 ms 20 ms
With power failure typ. 60 ms 60 ms
With power failure max. 80 ms 80 ms
Supply interruption before de-ener-
gisation in the input circuit 2 ms 2 ms
Supply interruption before de-ener-
gisation 20 ms 20 ms
Environmental data 777587 787587
Climatic suitability EN 60068-2-78 EN 60068-2-78
Ambient temperature
Temperature range -10 - 55 °C -10 - 55 °C
Storage temperature
Temperature range -40 - 85 °C -40 - 85 °C
Climatic suitability
Humidity 93 % r. h. at 40 °C 93 % r. h. at 40 °C
Condensation during operation Not permitted Not permitted
EMC EN 60947-5-1, EN 61000-6-2, EN
61326-3-1
EN 60947-5-1, EN 61000-6-2, EN
61326-3-1
Vibration
In accordance with the standard EN 60068-2-6 EN 60068-2-6
Frequency 10 - 55 Hz 10 - 55 Hz
Amplitude 0,35 mm 0,35 mm

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Environmental data 777587 787587
Airgap creepage
In accordance with the standard EN 60947-1 EN 60947-1
Overvoltage category III III
Pollution degree 2 2
Rated insulation voltage 250 V 250 V
Rated impulse withstand voltage 6 kV 6 kV
Protection type
Housing IP40 IP40
Terminals IP20 IP20
Mounting area (e.g. control cab-
inet) IP54 IP54
Mechanical data 777587 787587
Mounting position Any Any
Mechanical life 10,000,000 cycles 10,000,000 cycles
Material
Bottom PPO UL 94 V0 PPO UL 94 V0
Front ABS UL 94 V0 ABS UL 94 V0
Top PPO UL 94 V0 PPO UL 94 V0
Connection type Screw terminal Spring-loaded terminal
Mounting type plug-in plug-in
Conductor cross section with screw
terminals
1 core flexible 0,25 - 2,5 mm², 24 - 12 AWG –
2 core with the same cross sec-
tion, flexible with crimp connect-
ors, no plastic sleeve 0,25 - 1 mm², 24 - 16 AWG –
2 core with the same cross sec-
tion, flexible without crimp con-
nectors or with TWIN crimp con-
nectors 0,2 - 1,5 mm², 24 - 16 AWG –
Torque setting with screw terminals 0,5 Nm –
Stripping length with screw termin-
als 8 mm –
Conductor cross section with
spring-loaded terminals: Flexible
with/without crimp connector – 0,2 - 1,5 mm², 24 - 16 AWG
Spring-loaded terminals: Terminal
points per connection – 2
Stripping length with spring-loaded
terminals – 8 mm
Dimensions
Height 94 mm 101 mm
Width 22,5 mm 22,5 mm
Depth 121 mm 121 mm
Weight 185 g 185 g
Where standards are undated, the 2020-07 latest editions shall apply.

PZE X4.1P
Operating Manual PZE X4.1P
1003203-EN-09 | 16
Order no. 777588 – 787588
General 777588 787588
Certifications
CCC, CE, EAC (Eurasian), TÜV,
cULus Listed
CCC, CE, EAC (Eurasian), TÜV,
cULus Listed
Electrical data 777588 787588
Supply voltage
Voltage 24 - 240 V 24 - 240 V
Kind AC/DC AC/DC
Voltage tolerance -15 %/+10 % -15 %/+10 %
Output of external power supply
(AC) 4 VA 4 VA
Output of external power supply
(DC) 2 W 2 W
Frequency range AC 50 - 60 Hz 50 - 60 Hz
Residual ripple DC 20 % 20 %
Duty cycle 100 % 100 %
Inputs 777588 787588
Number 2 2
Voltage at
Input circuit DC 24 V 24 V
Current at
Input circuit DC 30 mA 30 mA
Max. overall cable resistance Rl-
max
Single-channel at UB DC 70 Ohm 70 Ohm
Single-channel at UB AC 70 Ohm 70 Ohm
Dual-channel without detection
of shorts across contacts at UB
DC 140 Ohm 140 Ohm
Dual-channel without detection
of shorts across contacts at UB
AC 140 Ohm 140 Ohm
Relay outputs 777588 787588
Number of output contacts
Safety contacts (N/O), instant-
aneous 4 4
Max. short circuit current IK 1 kA 1 kA
Utilisation category
In accordance with the standard EN 60947-4-1 EN 60947-4-1

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Relay outputs 777588 787588
Utilisation category of safety con-
tacts
AC1 at 240 V 240 V
Min. current 0,01 A 0,01 A
Max. current 6 A 6 A
Max. power 1500 VA 1500 VA
DC1 at 24 V 24 V
Min. current 0,01 A 0,01 A
Max. current 6 A 6 A
Max. power 150 W 150 W
Utilisation category
In accordance with the standard EN 60947-5-1 EN 60947-5-1
Utilisation category of safety con-
tacts
AC15 at 230 V 230 V
Max. current 3 A 3 A
DC13 (6 cycles/min) at 24 V 24 V
Max. current 4 A 4 A
Utilisation category in accordance
with UL
Voltage 250 V AC G.U. (same polarity) 250 V AC G.U. (same polarity)
With current 6 A 6 A
Voltage 24 V DC G. U. 24 V DC G. U.
With current 6 A 6 A
Pilot Duty B300, R300 B300, R300
External contact fuse protection,
safety contacts
In accordance with the standard EN 60947-5-1 EN 60947-5-1
Max. melting integral 66 A²s 66 A²s
Blow-out fuse, quick 6 A 6 A
Blow-out fuse, slow 4 A 4 A
Blow-out fuse, gG 6 A 6 A
Circuit breaker 24V AC/DC,
characteristic B/C 4 A 4 A
Contact material AgCuNi + 0,2 µm Au AgCuNi + 0,2 µm Au
Conventional thermal current
while loading several contacts
777588 787588
Ith per contact at UB AC;
AC1:240V,DC1:24V
Conv. therm. current with 1 con-
tact 6 A 6 A
Conv. therm. current with 2 con-
tacts 6 A 6 A
Conv. therm. current with 3 con-
tacts 4,5 A 4,5 A
Conv. therm. current with 4 con-
tacts 3,5 A 3,5 A

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Operating Manual PZE X4.1P
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Conventional thermal current
while loading several contacts
777588 787588
Ith per contact at UB DC;
AC1:240V,DC1:24V
Conv. therm. current with 1 con-
tact 6 A 6 A
Conv. therm. current with 2 con-
tacts 6 A 6 A
Conv. therm. current with 3 con-
tacts 4,5 A 4,5 A
Conv. therm. current with 4 con-
tacts 3,5 A 3,5 A
Times 777588 787588
Switch-on delay
With automatic start typ. 15 ms 15 ms
With automatic start max. 20 ms 20 ms
With automatic start after power
on typ. 230 ms 230 ms
With automatic start after power
on max. 360 ms 360 ms
Delay-on de-energisation
With E-STOP typ. 10 ms 10 ms
With E-STOP max. 20 ms 20 ms
With power failure typ. UB 240 V 1300 ms 1300 ms
With power failure max. UB 240
V1900 ms 1900 ms
With power failure typ. UB 24 V 270 ms 270 ms
With power failure max. UB 24 V 350 ms 350 ms
Supply interruption before de-ener-
gisation in the input circuit 2 ms 2 ms
Supply interruption before de-ener-
gisation 20 ms 20 ms
Environmental data 777588 787588
Climatic suitability EN 60068-2-78 EN 60068-2-78
Ambient temperature
Temperature range -10 - 55 °C -10 - 55 °C
Storage temperature
Temperature range -40 - 85 °C -40 - 85 °C
Climatic suitability
Humidity 93 % r. h. at 40 °C 93 % r. h. at 40 °C
Condensation during operation Not permitted Not permitted
EMC EN 60947-5-1, EN 61000-6-2, EN
61000-6-4, EN 61326-3-1
EN 60947-5-1, EN 61000-6-2, EN
61000-6-4, EN 61326-3-1
Vibration
In accordance with the standard EN 60068-2-6 EN 60068-2-6
Frequency 10 - 55 Hz 10 - 55 Hz
Amplitude 0,35 mm 0,35 mm

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Environmental data 777588 787588
Airgap creepage
In accordance with the standard EN 60947-1 EN 60947-1
Overvoltage category III / II III / II
Pollution degree 2 2
Rated insulation voltage 250 V 250 V
Rated impulse withstand voltage 4 kV 4 kV
Protection type
Housing IP40 IP40
Terminals IP20 IP20
Mounting area (e.g. control cab-
inet) IP54 IP54
Mechanical data 777588 787588
Mounting position Any Any
Mechanical life 10,000,000 cycles 10,000,000 cycles
Material
Bottom PPO UL 94 V0 PPO UL 94 V0
Front ABS UL 94 V0 ABS UL 94 V0
Top PPO UL 94 V0 PPO UL 94 V0
Connection type Screw terminal Spring-loaded terminal
Mounting type plug-in plug-in
Conductor cross section with screw
terminals
1 core flexible 0,25 - 2,5 mm², 24 - 12 AWG –
2 core with the same cross sec-
tion, flexible with crimp connect-
ors, no plastic sleeve 0,25 - 1 mm², 24 - 16 AWG –
2 core with the same cross sec-
tion, flexible without crimp con-
nectors or with TWIN crimp con-
nectors 0,2 - 1,5 mm², 24 - 16 AWG –
Torque setting with screw terminals 0,5 Nm –
Stripping length with screw termin-
als 8 mm –
Conductor cross section with
spring-loaded terminals: Flexible
with/without crimp connector – 0,2 - 1,5 mm², 24 - 16 AWG
Spring-loaded terminals: Terminal
points per connection – 2
Stripping length with spring-loaded
terminals – 8 mm
Dimensions
Height 94 mm 101 mm
Width 22,5 mm 22,5 mm
Depth 121 mm 121 mm
Weight 215 g 215 g
Where standards are undated, the 2020-07 latest editions shall apply.

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Safety characteristic data
NOTICE
You must comply with the safety characteristic data in order to achieve the
required safety level for your plant/machine.
Operating
mode
EN ISO
13849-1:
2015
PL
EN ISO
13849-1:
2015
Category
EN62061
SIL CL
EN62061
PFHD [1/h]
IEC 61511
SIL
IEC 61511
PFD
EN ISO
13849-1:
2015
TM [year]
–PL e Cat. 4 SIL CL 3 2,31E-09 SIL 3 2,03E-06 20
Explanatory notes for the safety-related characteristic data:
}The SIL CL value in accordance with EN 62061 corresponds to the SIL value in accord-
ance with EN 61508.
}TM is the maximum mission time in accordance with EN ISO 13849-1. The value also ap-
plies as the retest interval in accordance with EN 61508-6 and IEC 61511 and as the
proof test interval and mission time in accordance with EN 62061.
All the units used within a safety function must be considered when calculating the safety
characteristic data.
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.
Supplementary data
CAUTION!
It 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 switch frequency and the load of the relay output.
If the service life graphs are not accessible, the stated PFH value can be used irrespective
of the switch 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.