MRS Toggle Relay M3 12 V User manual

Toggle Relays
Operating Instructions
For the following types:
Toggle Relay M3 12 V
Toggle Relay M3 24 V
Toggle Relay 12 V
Toggle Relay 24 V
Toggle Relay M1 Compact 12 V
Toggle Relay M1 Compact 24 V
Toggle Relay time limited M3 12 V
Toggle Relay time limited M3 24 V
Toggle Relay time limited &
compact M1 12 V
Toggle Relay time limited &
compact M1 24 V

VST01_GA1_1.2 | Version 1.2 | 06/2021
MRS Electronic
Toggle Relays - Operating Instructions
Contact data
MRS Electronic GmbH & Co. KG
Klaus-Gutsch-Str. 7
78628 Rottweil, Germany
Telephone:
Internet:
E-mail:
Product
Product designation:
Types:
Serial number:
Document
Name:
Version:
Date:
[phone]
https://www.mrs-electronic.com
[e-mail]
Toggle Relays
Toggle Relay M3 12 V
Toggle Relay M3 24 V
Toggle Relay 12 V
Toggle Relay 24 V
Toggle Relay M1 Compact 12 V
Toggle Relay M1 Compact 24 V
Toggle Relay time limited M3 12 V
Toggle Relay time limited M3 24 V
Toggle Relay time limited & compact M1 12 V
Toggle Relay time limited & compact M1 24 V
see type plate
SSR_GA1_1.2
1.2
06/2021
The original operating instructions were composed in German.
MRS Electronic GmbH & Co. KG compiled this document with the utmost diligence and based on the
current state of technology. MRS Electronic GmbH & Co. KG will not assume any liability or
responsibility for errors in content or form, missing updates as well as any possibly resulting damages or
drawbacks.
Our products are developed according to European norms and standards. Therefore, the use of these
products is currently limited to the area of the European Free Trade Association (EFTA). If products are
to be used in another area, market access research must be carried out beforehand. You can do this
yourself as the market introducer or you are welcome to contact us and we will discuss how to proceed
together.

Table of Contents
Table of Contents
1User information............................................................................................................1
1.1 About these operating instructions ..................................................................................1
1.2 Copyright.........................................................................................................................3
1.3 Warranty conditions.........................................................................................................3
2Safety .............................................................................................................................4
2.1 Hazards...........................................................................................................................4
2.2 Staff qualifications ...........................................................................................................5
2.3 Obligations of the manufacturers of complete systems ...................................................6
3Product description ......................................................................................................8
4Transport / Storage .......................................................................................................9
4.1 Transport.........................................................................................................................9
4.2 Storage............................................................................................................................9
5Intended use ................................................................................................................10
6Assembly .....................................................................................................................11
6.1 Mounting location ..........................................................................................................11
6.2 Mounting position ..........................................................................................................11
6.3 Fastening.......................................................................................................................11
7Electric installation .....................................................................................................12
7.1 Wiring ............................................................................................................................13
8Commissioning ...........................................................................................................14
9Software .......................................................................................................................15
10 Fault removal and maintenance.................................................................................16
10.1 Cleaning ........................................................................................................................16
10.2 Fault removal.................................................................................................................17
11 Disassembly and disposal..........................................................................................18
11.1 Disposal ........................................................................................................................18

1 User information
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1 User information
1.1 About these operating instructions
The manufacturer MRS Electronic GmbH & Co. KG (hereinafter referred to as MRS)
delivered this product to you in its entirety and functionally sound. The operating
instructions provide information about how to:
Install the product
Service the product (cleaning)
Uninstall the product
Dispose of the product
It is essential to read these operating instructions thoroughly and completely before
working with the product. We strive to compile all the information for safe and complete
operation. However, should you have any questions not answered by these
instructions, please contact MRS.
Storage and transfer of the operating instructions
These instructions as well as all other product-related documentation relevant for
different applications must always be kept on hand and be available in the vicinity of
the product.
Target group of the operating instructions
These instructions address trained experts who are familiar with handling electronic
assemblies. Trained experts are those persons who can assess the tasks assigned to
her/him and recognize possible dangers due to her/his expert training, knowledge and
experience as well as her/his knowledge of the relevant standards and regulations.
Validity of the operating instructions
The validity of these instructions goes into effect with the transfer of the product from
MRS to the operator. The version number and approval date of the instructions are
included in the footer. Changes to these operating instructions are possible any time
and without the specification of any reasons.
INFORMATION
The current version of the operating instructions replaces all previous versions.

1 User information
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Warning information in the operating instructions
The operating instructions contain warning information before a call to action which
includes the risk of property damage or personal injury. The measures for averting
risks described in the instructions must be implemented. Warning information is
structured as follows:
jDANGER!
SOURCE AND CONSEQUENCE
Plus explanation, where needed.
Prevention.

Warning
symbol:
(Warning triangle) indicates the danger.
Signal word:
Specifies the seriousness of the danger
Source:
Designates the type or source of the danger.

Consequence:
Specifies the consequences in case of noncompliance

Prevention:
Informs how to avert the danger.
jDANGER!
Designates an immediate, serious threat which will with certainty lead to serious
injury or even death if the danger is not averted.
j WARNING!
Designates a possible threat which may lead to serious injury or even death if the
danger is not averted.
j CAUTION!
Designates a potentially dangerous situation which may lead to mild or medium
property damage or physical injury if the danger is not averted.
INFORMATION
Sections with this symbol provide important information about the product or how to
handle the product.
Symbols used in the operating instructions
General warning sign.
Beware of electrical current.

1 User information
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Beware of hot surface.
1.2 Copyright
These operating instructions contain information protected by copyright. The contents
or excerpts of the contents may not be copied or reproduced in any other way without
prior consent from the manufacturer.
1.3 Warranty conditions
See the General Terms and Conditions MRS Electronic GmbH & Co. KG at
https://www.mrs-electronic.de/agb/

2 Safety
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2 Safety
This chapter includes all the information you should know in order to safely install and
operate the product.
2.1 Hazards
The toggle relay has been constructed with the newest technology and recognized
safety-relevant regulations. Danger for persons and/or property may arise in case of
improper use. Lack of compliance with the rules for work safety may result in damages.
This section describes all the possible hazards which may be relevant during the
assembly, installation and commissioning of the toggle relay.
Faulty operations
Faulty software, circuits or parameter setting may cause unforeseen reactions or
malfunctions through the complete system.
j WARNING!
DANGER DUE TO MALFUNCTION OF THE COMPLETE SYSTEM
Unforeseen reactions or malfunctions of the complete system may endanger the
safety of people and machine.
Please make sure that the toggle relay is equipped with the proper software and
that the circuits and parameter settings are compliant with the hardware.
Moving components
The complete system may create unforeseen dangers when commissioning and
servicing the toggle relay.
jWARNING!
SUDDEN MOVEMENTS OF COMPLETE SYSTEM OR OF COMPONENTS
Danger due to unprotected moving components.
Before performing any work, shut down the complete system and secure it
against unintended restart.
Before commissioning the system, please make sure that the complete system
and all parts of the system are in a safe state.

2 Safety
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Elevated temperature
j CAUTION!
DANGER OF BURNS!
The casing of the toggle relay may exhibit an elevated temperature.
Please do not touch the casing and let all system components cool down before
working on the system.
2.2 Staff qualifications
These operating instructions repeatedly refer to the qualifications of the employees
who can be trusted to perform various tasks for installation and maintenance. The three
groups are:
Specialists/Experts
Skilled persons
Authorized persons
This product is not suitable for use by persons (incl. Children) who are mentally or
physically disabled or do not have enough experience or sufficient knowledge of the
product unless supervised or having attended a detailed training regarding the use of
the toggle relay by a person who is responsible for the safety of this person.
Specialists/Experts
Specialists and experts are, for example, fitters or electrician who are capable of
assuming different tasks, such as transport, assembly and installation of the product
with the instructions of an authorized person. The people in question must be
experienced in handling the product.
Skilled persons
Skilled persons are those persons who have sufficient knowledge of the subject in
question due to their specialist training and are familiar with the relevant national
occupational protection provisions, accident prevention regulations, guidelines and
generally recognized rules of technology. Skilled persons must be capable of securely
assessing the results of their work and familiarize themselves with the contents of
these operating instructions.
Authorized persons
Authorized persons are those persons who are permitted to perform the work due to
legal regulations or who have been approved to perform certain tasks by MRS.

2 Safety
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2.3 Obligations of the manufacturers of complete systems
Tasks for system development, installation and commissioning of electric systems
may only be performed by trained and experienced staff, see Chapter 2.2 Staff
qualifications.
The manufacturer of the complete system must ensure that no defective or faulty
toggle relays are used. In case of failure or malfunctions, the toggle relay must be
replaced immediately.
The manufacturer of the complete system must ensure that the circuity and
programming of the toggle relay do not lead to a safety-relevant malfunction of the
complete system in case of a failure or malfunction.
The manufacturer of the complete system is responsible for the correct connection
of all the peripherals (such as cable profiles, plugs, crimps, correct
selection/connection of sensors/actuators).
The toggle relay may not be opened.
No changes and/or repairs may be performed on the toggle relay.
If the toggle relay falls down, it may no longer be used and must be returned to
MRS to be checked.
The manufacturer of the complete system must inform the end customer about all
potential dangers.
The manufacturer must also take the following aspects into consideration when
using the toggle relay:
Toggle relays with wiring suggestions provided by MRS do not constitute a
systematic responsibility for complete systems.
Safe operation cannot be guaranteed for toggle relays used as prototypes or
samples in the complete system.
Faulty circuitry and programming of the toggle relay may lead to unforeseen signals
to the outputs of the toggle relay.
Faulty programming or parameter setting of the toggle relay may lead to dangers
during operation of the complete system.
It must be ensured when the toggle relay is released that the supply of the electric
system, of the final stages and of the external sensor supply are shut down jointly.
Toggle relays without factory-made software programmed more than 500 times
may not be used in complete systems any longer.

2 Safety
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The risk of accidents is reduced if the manufacturer of the complete systems
observes the following points:
Adherence to the statutory regulations regarding accident prevention, occupational
safety and environmental protection.
Provision of all documents required for installation and maintenance.
Monitoring of the cleanliness of the toggle relay and of the complete system.
The responsibilities for the assembly of the toggle relay must be clearly specified
by the manufacturer of the complete system. The assembly and maintenance staff
must be regularly instructed.
And work and maintenance performed on electric energy sources is always
associated with possible dangers. Persons not familiar with these kinds of devices
and systems may cause harm to themselves and others.
The installation and maintenance staff of a system with electric devices must be
instructed by the manufacturer regarding potential dangers, required safety
measures and applicable safety provisions before beginning work.

3 Product description
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3 Product description
The toggle relays by MRS Elecronic can switch a load with a button. If a positive/
negative pulse is applied to terminal 15 of a toggle relay, the relay switches and stops
itself. With another pulse, it is switched again.
The MRS Realizer can be used for graphic programming via Z-graph. The toggle relays
12 V and taggle relays 24 V are not programmable and are switching only at a signal
on input KL15.

4 Transport / Storage
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4 Transport / Storage
4.1 Transport
The product must be packed in suitable transport packaging and secured against
sliding around. During transport, the statutory provisions regarding securing loads must
be observed.
If the toggle relay falls down, it may no longer be used and must be returned to MRS
to be checked.
4.2 Storage
Store the product in a dry place (no dew), dark (no direct sunlight) in a clean room
which can be locked. Please observe the permissible environmental conditions in the
data sheet.

5 Intended use
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5 Intended use
The toggle relay is an electromechanical switch used to switch circuits on and off in
vehicles and work machines and may only be used for this purpose. The toggle relay
may only be operated in industrial applications.
You are within regulations:
If the toggle relay is operated within the operating ranges specified and approved
in the corresponding data sheet.
If you strictly adhere to the information and sequence of tasks described in these
operating instructions and do not engage in unauthorized actions which may risk
your safety and the functionality of the toggle relay.
If you comply with all specified safety instructions
j WARNING!
DANGER DUE TO UNINTENDED USE!
The toggle relay is only intended to be used in vehicles and work machines.
An application in safety-relevant system parts for personal protection is not
permitted.
Please do not use the toggle relay in explosive areas.
Misuse
Use of the product in conditions and requirements differing from those specified by
the manufacturer in technical documentation, data sheets and operating
instructions.
Non-compliance with the safety information and information regarding assembly,
commissioning, maintenance and disposal specified in the operating instructions.
Conversions and changes of the toggle relay.
Use of the toggle relay or parts thereof which are damaged or corroded. The same
goes for seals and cables.
Operation in a condition with access to live parts.
Operation without the safety measures intended and provided by the manufacturer.
MRS only guarantees/is liable for the toggle relay corresponding to the published
specifications. If the product is used in a way not described in these operation
instructions or in the data sheet of the toggle relay in question, the protection of the
toggle relay will be impaired, and the warranty claim is void.

6 Assembly
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6 Assembly
Assembly work may only be performed by qualified staff (see Chapter 2.2). The toggle
relay may only be operated after having installed in a fixed location.
INFORMATION
If the toggle relay falls down, it may no longer be used and must be returned to
MRS to be checked.
6.1 Mounting location
The mounting location must be selected as such that the toggle relay is subjected to
as low a mechanical and thermal load as possible. The toggle relay may not be
exposed to chemicals.
INFORMATION
Please observe the permissible environmental conditions in the data sheet.
6.2 Mounting position
Mount the toggle relay in such a way that the connectors point downwards. This
ensures that possible condensation water can flow off. Individual seals of the
cables/wires ensure that no water can enter the toggle relay.
6.3 Fastening
Toggle relay with flat plugs (pursuant to ISO 7588-1: 1998-09)
Toggle relays with flat plugs are plugged into the plugs provided by the manufacturer
of the complete system. Please observe the instructions in Chapter 7 Electric
installation.

7 Electric installation
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7 Electric installation
Electric installation work may only be performed by qualified staff (see Chapter 2.2).
The electric installation of the unit may only be performed in idle condition. The toggle
relay may never be connected or disconnected on-load or when live.
j WARNING!
SUDDEN MOVEMENTS OF COMPLETE SYSTEM OR OF COMPONENTS
Danger due to unprotected moving components.
Before performing any work, shut down the complete system and secure it
against unintended restart.
Please make sure that the complete system and all parts of the system are in a
safe state.
Please ensure that the toggle relay is connected correctly. Check the pin
assignment.
Toggle relay with flat plugs (pursuant to ISO 7588-1: 1998-09)
1. Please ensure that the toggle relay is inserted into the correct slot. Follow the
connection diagram and documents of the complete system.
2. Please ensure that all flat plugs of the toggle relay are free of dirt and moisture.
3. Please ensure that the slot does not exhibit any damages due to overheating,
insulation damages and corrosion.
4. Please ensure that all sockets of the toggle relay are free of dirt and moisture.
5. Plug the toggle relay vertically all the way into the slot.
The commissioning process can now be performed, see Chapter 8.

7 Electric installation
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7.1 Wiring
INFORMATION
Always use an external fuse in the power supply line to protect the device against
overvoltage. For further information about the correct fuse rating, please refer to the
corresponding data sheet.
The wiring must be connected with the utmost diligence.
All cables and the way they are laid must comply with applicable regulations.
When laying cables, the possibility of mechanical damages of the wire insulation
on sharp edges or moving metal parts must be excluded.
Cables must be laid so they are strain-relieved and friction-free.
The cable harness must be strutted as such that in-phase stimulation is performed
with the toggle relay.
The cables must comply with the requirements and wire cross-sections specified in
the technical data.
The connected cables must be suitable for temperatures min. 10°C above the max.
permitted environmental temperature.

8 Commissioning
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8 Commissioning
Commissioning work may only be performed by qualified staff (see Chapter 2.2). The
unit may only be commissioned if the condition of the complete system complies with
the applicable guidelines and regulations.
INFORMATION
MRS recommends a functional test on site.
j WARNING!
SUDDEN MOVEMENTS OF COMPLETE SYSTEM OR OF COMPONENTS
Danger due to unprotected moving components.
Before commissioning the system, please make sure that the complete system
and all parts of the system are in a safe state.
If necessary, secure all hazard areas with barrier tapes.
The operator must ensure that
the correct software has been embedded and corresponds with the circuitry and
parameter setting of the hardware (only for toggle relays supplied by MRS without
software).
no persons are present in the vicinity of the complete system.
the complete system is in a safe state.
Commissioning is performed in a safe environment (horizontal and solid ground, no
weather impact)

9 Software
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9 Software
The installation and/or replacement of device firmware / software must be performed
by MRS Electronic GmbH & Co. KG or by an authorized partner in order for the
warranty to remain valid.
INFORMATION
Toggle relays supplied without software can be programmed using MRS Realizer.
More information available in the MRS Realizer manual.

10 Fault removal and maintenance
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10Fault removal and maintenance
INFORMATION
The toggle relay is maintenance-free and may not be opened.
If the toggle relay
exhibits any damages on the casing, locking catch, seals or flat
plugs, it must be shut down.
Fault removal and cleaning work may only be performed by qualified staff (see Chapter
2.2). Fault removal and cleaning work may only be performed in idle condition. Remove
the toggle relay for fault removal and cleaning. The toggle relay may never be
connected or disconnected on-load or when live. After fault removal and cleaning work
has been completed, please follow the instructions in Chapter 7 Electric installation.
j WARNING!
SUDDEN MOVEMENTS OF COMPLETE SYSTEM OR OF COMPONENTS
Danger due to unprotected moving components.
Before performing any work, shut down the complete system and secure it
against unintended restart.
Before beginning fault removal and maintenance work, plea
se make sure that the
complete system and all parts of the system are in a safe state.
Remove the toggle relay for fault removal and cleaning.
j CAUTION!
DANGER OF BURNS!
The casing of the toggle relay may exhibit an elevated temperature.
Please do not touch the casing and let all system components cool down before
working on the system.
j CAUTION!
DAMAGE OR SYSTEM FAILURE DUE TO IMPROPER CLEANING!
The toggle relay may be damaged due to improper cleaning processes and cause
unintended reactions throughout the complete system.
The toggle relay should not be cleaned with a high-pressure cleaner or a water
jet.
Remove the toggle relay for fault removal and cleaning.
10.1 Cleaning

10 Fault removal and maintenance
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INFORMATION
Damages due to improper cleaning agents!
The toggle relay may be damaged when cleaning it with high-pressure cleaners,
steam jets, aggressive solvents or scouring agents.
Do not clean the toggle relay with high-pressure cleaners or steam jets. Do not
use any aggressive solvents or scouring agents.
Only clean the toggle relay in a clean environment free of dust.
1. Please follow all safety instructions and deenergize the complete system.
2. Do not use any aggressive solvents or scouring agents.
3. Let the toggle relay dry.
Install the clean toggle relay pursuant to the instructions in Chapter 7.
10.2 Fault removal
1. Please ensure that fault removal measures are performed in a safe environment
(horizontal and solid ground, no weather impact)
2. Please follow all safety instructions and deenergize the complete system.
3. Check that the system is intact.
Remove damaged toggle relays and dispose of in accordance with national
environmental regulations.
4. Remove the mate plug and/or remove the toggle relay from the slot.
5. Check all flat plugs, connectors and pins for mechanical damages due to
overheating, insulation damage and corrosion.
Damaged toggle relays and toggle relays with corroded contacts must be
removed and disposed of in accordance with national environmental
regulations.
Dry toggle relay and contacts in case of moisture.
If needed, clean all contacts.
Faulty operations
In case of faulty operations, check the software, circuitry and parameter settings.