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Switching sensors
Switching sensors
Measuring sensors
Measuring sensors
Safety
Safety
Identification
Identification
Network and Connection Technology
Network and Connection Technology
Optical data transmission
- DDLS 500 with 100 Mbit/s real-time transmission
- DDLS 200 with 2 Mbit/s transmission rate
Optical data transmission

Data within a network is transferred in different ways. Optical data transmission photoelectric sensors use the "air" medium to transfer data invisibly, contact-free and free from wear over a distance of up to 300 m. This is a leading technology in plant engineering and combines efficiency with cost effectiveness.
Industrial image processing
Industrial image processing
Accessories
Accessories

Intralogistics
Intralogistics

Sensor solutions for stacker cranes, shuttles, continuous conveyors, electrical monorail systems, automated guided vehicles, side-tracking shelves, picking systems and cranes.
Packaging industry

Packaging industry

Sensor solutions for primary packaging in beverage filling, pharmaceutical and meat packaging as well as confectionery and bakery production, for secondary packaging and for the end-of-line area.
Machine tools
Machine tools

Sensor solutions for hydraulic and eccentric presses, punching and laser cutting machines, pipe and wire bending machines, processing centers, hydraulic press brakes, metal sawing machines, sheet metal feeders and robot work areas.
Automotive industry

Automotive industry

Sensor solutions for press shops, vehicle body construction, paint shops, powertrains and final assembly.
Laboratory automation

Laboratory automation

Sensor solutions for pre-analytic instruments, IVD analyzers, automation modules and post analytic modules.

Product highlights

Product highlights

Here, we present to you our innovations and highlights from the Leuze product world.
Safety at Leuze

Safety at Leuze

Global industry is in a constant state of flux – and with it, the complex demands on safety systems designed to protect people and equipment. With a comprehensive portfolio to satisfy all safety requirements, we offer you complete safety, an efficient flow of materials, and maximum availability levels worldwide.
Technologies
Technologies

We are constantly working on technological challenges and important issues in the markets of our customers. This is a prerequisite for our efficient product development and consulting expertise.

About Leuze

About Leuze

Leuze is an international sensor expert for automation technology. With curiosity and determination, we – the Sensor People – have been forerunners for innovations and technological milestones in industrial automation for more than 60 years.
Company profile

Company profile

To us, innovation means using our curiosity and determination to the full extent in order to make you successful for the long-term in an ever changing industry. Your success is our objective and motivation.
Quality and environmental management
- Leuze SenseBees
Quality and environmental management

Our goal: high quality standards for our products, reliability, and responsible handling and protection of the environment.
Trade shows and events

Trade shows and events

We – the Sensor People – like to be where our market is. Right in the middle of our industry and close to our target groups.
Press and public relations work

Press and public relations work

You can find all current press releases from Leuze in this area.
Newsletter

Newsletter

The newsletter is published up to four times a year.

Contact

Contact

We accompany our customers during the entire life cycle of their machines or systems by providing competent advice and offering our comprehensive support and services.
Locations

Locations

With over 20 subsidiaries and supported by more than 40 international distributors around the world, we are represented in the most important markets of our industry and are always in close proximity to our customers.
Specialist knowledge
- Ex protection
- Safety at work
Specialist knowledge

We are constantly working on challenges and important issues in the markets of our customers. This is what makes our consultation and development work so successful, enabling us to offer our customers efficient solutions.
Repair service and returns

Repair service and returns

Defective devices are repaired in our service center competently and quickly. We offer you an extensive service packet to keep any system downtimes to a minimum.
Downloads
Downloads

Be it catalogs, advertising information, release lists or special software - you'll find it here.

Leuze as an employer

Leuze as an employer

The success of our company is shaped largely by the commitment, creativity and ingenuity of our employees – and we are aware of this.
Career starters and professionals

Career starters and professionals

Do you have goals and are you ready to grow along with your tasks? We offer interesting opportunities for you: we are a company that unifies the internationality of a global player with the family-like environment and collegiality of a medium-sized company.
Job offers

Job offers

Our current job openings are listed here. Become one of the Sensor People – apply today!

International | en

Australia | en

Belgium | nl | fr | de

Brazil | es | pt

China | zh

Denmark | en

France | fr

Germany | de

India | en

Italy | it

Mexico | es

Netherlands | nl

Poland | pl

Singapore | en

South Korea | ko

Spain | es

Sweden | en

Switzerland | fr | de | it

Turkey | tr

USA | en

United Kingdom | en

Show all categories Relay Previous

Show Relay

Products

Safety

Safety products

Safety relay

Relay

Relay

For the integration of individual safety switches, sensors and command devices in the safety circuit of machines and systems, the reliable safety relays offer the right solution. Both tailored and universal evaluation units with 2 or 3 release contacts and devices with time delay for speed/standstill monitoring are available. The relays have pluggable screw or spring-cage terminals.

Overview

Article list

Article list

Product selector

Filter

Base device for E-Stop and safety door applications
Base device for E-Stop applications
Evaluation unit for two-hand control devices
None

Automatic
Manual
None

Screw terminal
Spring-cage terminal

"Error" signal output
"Safety ON" signal output
Automatic start/restart
Contactor monitoring (EDM)
Contactor monitoring (EDM), selectable
Cross circuit monitoring
Double sensor monitoring
Monitoring of E-Stop circuits
Monitoring of optoelectronic protective devices
Monitoring of position switches
Monitoring of proximity switches
Monitoring of solenoid switches
One- or two-channel operation
Periodic function test
Start/restart interlock (RES)
Start/restart interlock (RES), selectable
Static contactor monitoring (EDM)
Stop function according to category Stop 0
Time-delayed shutdown (STOP1)
None

1 NO contact / 1 NC contact
2 NO contacts / -
2 NO contacts / 1 NC contact
2 NO contacts / 2 NC contacts
3 NO contacts / 1 NC contact

d
e
Up to and including e
Up to c

2
3
4
Up to and including 4: 1 sensor connected

Results list: 27 products found

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MSI-SR4B-01

MSI-SR4B-01

Safety relay

Part no.: 547950

Restart: Automatic, Manual
Type of terminal: Screw terminal
Functions: Cross circuit monitoring, Automatic start/restart,...

Part no.: 547950

MSI-SR4B-02

MSI-SR4B-02

Safety relay

Part no.: 547951

Restart: Automatic, Manual
Type of terminal: Spring-cage terminal
Functions: Cross circuit monitoring, Automatic start/restart,...

Part no.: 547951

MSI-SR-LC31AR-01

MSI-SR-LC31AR-01

Safety relay

Part no.: 50133004

Application: Base device for E-Stop and safety door application...
Restart: Automatic
Type of terminal: Screw terminal
Functions: Monitoring of solenoid switches, Monitoring of E-S...

Part no.: 50133004

MSI-SR-LC31AR-03

MSI-SR-LC31AR-03

Safety relay

Part no.: 50133005

Application: Base device for E-Stop and safety door application...
Restart: Automatic
Type of terminal: Spring-cage terminal
Functions: Monitoring of solenoid switches, Monitoring of E-S...

Part no.: 50133005

MSI-SR-LC31MR-01

MSI-SR-LC31MR-01

Safety relay

Part no.: 50133006

Application: Base device for E-Stop and safety door application...
Restart: Manual
Type of terminal: Screw terminal
Functions: Monitoring of solenoid switches, Monitoring of E-S...

Part no.: 50133006

MSI-SR-LC31MR-03

MSI-SR-LC31MR-03

Safety relay

Part no.: 50133007

Application: Base device for E-Stop and safety door application...
Restart: Manual
Type of terminal: Spring-cage terminal
Functions: Monitoring of solenoid switches, Monitoring of E-S...

Part no.: 50133007

MSI-SR-LC21-01

MSI-SR-LC21-01

Safety relay

Part no.: 50133008

Application: Base device for E-Stop and safety door application...
Restart: Automatic, Manual
Type of terminal: Screw terminal
Functions: Monitoring of solenoid switches, Monitoring of E-S...

Part no.: 50133008

MSI-SR-LC21-03

MSI-SR-LC21-03

Safety relay

Part no.: 50133009

Application: Base device for E-Stop and safety door application...
Restart: Automatic, Manual
Type of terminal: Spring-cage terminal
Functions: Monitoring of solenoid switches, Monitoring of E-S...

Part no.: 50133009

MSI-TRMB-01

MSI-TRMB-01

Safety relay

Part no.: 547931

Restart: Automatic, Manual
Type of terminal: Screw terminal
Functions: Start/restart interlock (RES)

Part no.: 547931

MSI-TRMB-02

MSI-TRMB-02

Safety relay

Part no.: 547932

Restart: Automatic, Manual
Type of terminal: Spring-cage terminal
Functions: Start/restart interlock (RES)

Part no.: 547932

MSI-SR5B-01

MSI-SR5B-01

Safety relay

Part no.: 547952

Restart: Automatic, Manual
Type of terminal: Screw terminal
Functions: Double sensor monitoring, Automatic start/restart,...

Part no.: 547952

MSI-SR5B-02

MSI-SR5B-02

Safety relay

Part no.: 547953

Restart: Automatic, Manual
Type of terminal: Spring-cage terminal
Functions: Double sensor monitoring, Automatic start/restart,...

Part no.: 547953

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Part data of: 05/06/2023

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Leuze electronic GmbH + Co. KG
In der Braike 1
73277 Owen
+49 (0)7021 573-0+49 (0)7021 573-456
info@leuze.com

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