Schmersal Safety

Table of Contents:

• About Schmersal Safety
• Products of Schmersal Safety

Products of Schmersal Safety:

Schmersal specializes in industrial safety, offering a wide range of safety and monitoring solutions. Their portfolio includes safety sensors, Safety Switches, and emergency stop devices, ensuring secure operations in hazardous zones. They also provide safe signal processing units, such as safety relays and controllers, tailored for complex safety systems. 

Additionally, Schmersal’s automation technology enhances precision in mechanical processes. For explosive environments, their Ex-rated devices maintain safety standards. In the lift industry, their switchgear optimizes elevator functionality. Schmersal’s products are integral to maintaining safety and operational excellence in industrial settings.

Safety Light Curtains:

Schmersal’s safety light curtains and grids are designed for optimal protection in hazardous areas. Their compact SLG/SLC range can be seamlessly integrated into machine safety concepts, even in tight spaces. These devices are ideal for guarding danger points on presses, offering varying resolutions for person, hand, or finger protection. 

Achieving Control Category 4 to ISO 13849-1, they operate with an infrared signal between separate emitter and receiver enclosures, ensuring maintenance-free operation with simple installation and adjustment.

Safety Light Barriers:

Schmersal’s safety light barriers, part of their comprehensive safe switching and monitoring solutions, are designed to safeguard entry points, danger zones, and points of operation. The SLB 240 and SLB 440 series boast a compact design with integrated evaluation, suitable for both indoor and outdoor applications. 

These barriers are available as type 2 (PL c) and type 4 (PL e), ensuring seamless integration into safety circuits. The SLB 440-H variant, equipped with a heater, is ideal for monitoring in cold environments, maintaining functionality even at temperatures as low as -30°C.

Safety Switch With Separate Actuator:

Schmersal’s safety switches with separate actuators are designed for secure machine operations. These switches are ideal for sliding, hinged, and removable guards, ensuring operational safety. They offer flexibility for installation on profile sections and can be retrofitted. 

With an IP 67 enclosure rating, they can be mounted in any position, providing positive opening of NC contacts and closing of NO contacts when the safety device is opened. This ensures a high level of safety in combination with a guard door monitor, achieving category 3 or 4 to ISO 13849-1.

Solenoid Interlocks:

Schmersal’s solenoid interlocks offer a robust solution for machine safety, ensuring that safety guards like doors and flaps remain closed until hazards are mitigated. These interlocks come in various holding forces and are equipped with RFID technology for tamper-proofing, catering to different industrial needs. They are designed for easy mounting and can accommodate hinged and sliding guards, with options for manual release and intelligent diagnostics, enhancing both safety and operational efficiency.

Safety Switch For Hinged Guards:

Schmersal’s safety switches for hinged guards are designed to ensure operational safety by securing closed-hinged safety guards. They offer a comprehensive range for various applications, from small doors to heavy-hinged guards, with easy mounting and maintenance. These switches integrate the cam into the switch, meeting EN 1088 requirements for positive linkage and tamper protection, providing a cost-effective solution with their slow action mounting.

Safety Sensors:

Schmersal’s safety sensors are designed for monitoring the position of various safety guards like sliding, hinged, or removable parts. These safety sensors, which can be magnetic, RFID, or inductive, offer high repeat accuracy and are insensitive to soiling, making them ideal for environments with high hygiene standards or where dirt is prevalent. 

They can be concealed behind non-magnetic materials, allowing for clean surfaces without functional compromises. The BNS series, in particular, is suitable for applications requiring larger tolerances due to its flexibility in alignment.

Pull-Wire Emergency Stop Switches:

Schmersal’s pull-wire emergency stop switches are designed for machines and plant sections that cannot be safeguarded with guards. These switches can be activated from any point along the wire, providing an emergency stop command. They comply with EN ISO 13850, featuring a positive linkage between the NC contacts and the wire rope, ensuring operational safety. 

The switches include wire-breakage monitoring, and upon wire pull or breakage, they require a reset to return to operational condition. Models like the ZQ 700 and ZQ 900 offer robust designs for various operational lengths, while the RS655 and RS656 ensure protection with IP66 and IP67 ratings.

Emergency-Stop Button:

Schmersal’s Emergency-Stop buttons are crucial for industrial applications, serving as the interface between humans and machines. They are essential in various settings, including control cabinets, panels, and conveyor systems. These devices, available as pushbuttons, joystick switches, or key-operated switches, facilitate the start or stop of operations and processes through manual actuation. 

Control Panels:

Schmersal’s control panels, part of their safe switching and monitoring range, offer a slim, shock-resistant enclosure that can be fitted onto standard aluminum profiles. These panels are designed for ergonomic installation and feature a wide selection of control elements like illuminated pushbuttons, selector switches, and emergency-stop buttons. They are customizable with field labeling and adjustable button caps, ensuring they meet the specific needs of various industrial applications.

Two-Hand Control Panels:

Schmersal’s two-hand control panels are designed as non-separating protective devices, primarily ensuring the operator’s hands are on the panel during hazardous movements. These panels are crucial for safety in industries like metalworking, printing, and chemical processing. They require simultaneous hand actuation, keeping hands away from danger. The panels come with an emergency stop button and are suitable for setup work and single-stroke operations.

Enabling Device:

Schmersal’s enabling devices, particularly the ZSD series, are housed in a robust thermoplastic enclosure with excellent resistance to oil and petroleum spirit, making them ideal for robot applications in line with the ANSI Robotics Standard. These devices are equipped with redundant contact configurations for conventional safety relay module signal processing. They ensure safety by not closing contacts upon reset, which is crucial during machine setup, service work, or process observation, preventing accidental machine starts.

Safety-Related Tactile Sensor:

Schmersal’s safety-related tactile sensors are designed for robust performance and include a modular switching mat system, with special sizes available upon request. These maintenance-free systems are easy to mount and feature a slip-free surface with high resistance to chemicals. The range includes the SMS 4 and SMS 5 series, safety edges, flaps, bumpers, and cushions, each tailored for specific safety needs in various industrial environments. They are engineered to stop hazardous movements upon contact, ensuring the safety of both operators and machinery.

Foot Switch:

Schmersal’s foot switches, such as the TFH 232 and T2FH 232 models, offer a safe and reliable solution for machine control where manual operation is not feasible. These switches come with protective shields to prevent accidental activation. They are designed to close a NO contact upon light pressure and to open an NC contact beyond a certain pressure point for emergency stops, with a reset button for recovery. They are IP 65 certified, ensuring durability and protection against dust and water.

AS-Interface Safety at Work:

Schmersal’s AS-Interface Safety at Work (SaW) is a pioneering safety bus system based on the AS-International open standard. It allows for the simple interconnection of safety components like emergency stops and safety switches through a profile cable, managed by a safety monitor. 

This Schmersal AS-Interface system offers a secure transmission mechanism with a fail-safe shutdown response time of 40 ms. It’s designed for cost reduction, with integrated system diagnosis for quick malfunction analysis, minimizing downtime. The AS-Interface SaW is flexible, easy to install, and certified up to Control Category 4 by ISO 13849-1 and TÜV.

Key Transfer System:

Schmersal’s key transfer system is designed for complex production environments, ensuring safety in maintenance and service areas. The system includes key-selector switches, key distribution stations, and guard-locking devices, all housed in robust enclosures with IP65 protection. It’s ideal for applications with potential electrical hazards, high temperatures, or extreme conditions, including explosive atmospheres.

Safety-Monitoring Modules:

Schmersal’s safety-monitoring modules are designed to ensure the highest level of safety in industrial environments. These modules are categorized based on stop categories 0 and 1, with multifunctional capabilities. They also offer specialized modules for two-hand operator inputs and ATEX applications, suitable for explosive environments. These safety solutions are integral for machine operators, providing reliable and efficient stop and emergency functions to safeguard against potential hazards.

Input Expanders:

The schmersal input Extension module offers Multifunctional devices it includes SRB-E-204ST: with Stop 0 Function and Monitoring of 4 Sensors; SRB-E-204PE Input expander module and 1 oder 2-channel control. And offering input Protect like PROTECT-IE: Input for up to 4 sensors per interface e.g.: magnetic safety, PROTECT-PE: Possibility to connect up to 4 sensors with non-isolated signals. And input Expanders include Distribution modules and field boxes like EtherNet/IP Safety-Field-Box, PROFINET-Safety-Fieldbox, PFB, and PDM.

Output Expanders:

Schmersal’s output extension modules are designed for contact expansion, enhancing safety systems’ capabilities. The SRB402EM and SRB-E-402EM offer four safety contacts with STOP 0 functionality and two signaling outputs. The SRB-E-602EM provides versatile configurations with either six safety contacts for STOP 0 or two sets of three contacts, alongside two signaling outputs. These modules are equipped with plug-in screw terminals for secure connections.

Standstill Monitors and Time Relays:

Schmersal’s monitors and time relays are designed for multifunctional applications. These devices can detect standstill using one or two impulse sensors and offer additional standstill signal integration, such as a PLC as a second input channel. They also provide 2-channel time monitoring and two signaling outputs. 

Safety Controllers:

Schmersal presents a range of safety controllers, including the Protect PSC1 series for configurable safety systems, and the Protect Select for flexible, scalable safety solutions. These controllers are designed for complex machine safety applications, offering modular expansion options and user-friendly programming.

System Solutions:

Schmersal offers comprehensive system solutions for machine safety, including safety field boxes for plug-and-play installation, serial diagnostics for efficient system analysis, and a variety of safety switchgear. These components ensure reliable protection and are designed for seamless integration into existing systems, enhancing both safety and productivity.

Automation Technology:

Schmersal’s Automation Technology division offers a diverse range of mechanical position detection switches and safety sensors suitable for various applications. This includes a comprehensive selection of command and signaling devices. 

Their product line features innovative solutions such as 3D cameras utilizing Time-of-Flight technology for manufacturing, logistics, and robotics, and a variety of switches like gear-switches with metal enclosures and impact-resistant plastic hoods. These switches are designed for easy adjustment and offer various cam shapes to suit different switching travel requirements. 

Additionally, Schmersal provides photo-electric sensors, proximity switches, micro switches, and a range of other devices to meet automation needs.

Safety Switch with Separate Actuator For EX Zones:

Schmersal’s EX-AZ 16 and EX-AZ 3350 are safety switches with separate actuators designed for Ex Zone 22. They are suitable for safety guards that must be closed to ensure operational security, such as sliding, hinged, or removable guards. These switches are ideal for low voltage and current applications, ensuring high contact reliability. They can be mounted in any position and have an IP 67 enclosure rating. The EX-AZ 16 features a thermoplastic enclosure and multiple coding, while the EX-AZ 3350 has a metal enclosure, latching handle, and lockout tag option.

Solenoid Interlock For EX Zones:

Schmersal’s solenoid interlocks for Ex zones offer robust explosion protection for ATEX Zones 2 and 22. These devices feature a thermoplastic or metal enclosure and are designed to prevent the opening of safety guards like doors or flaps before hazardous conditions are eliminated. They come with high holding forces, manual release, and protection against incorrect locking. Suitable for hinged and sliding guards, they allow for series-wiring and show operating conditions via LEDs. These interlocks ensure safety by positively opening NC contacts and closing NO contacts when the guard is opened.

Magnetic Reed Switch For EX Zones:

Schmersal’s EX-BN 20 magnetic reed switch is designed for ATEX Zones 2 and 22, offering explosion protection in hazardous environments. The device features a durable aluminum enclosure measuring 104 mm x 52 mm x 47 mm and can detect actuation distances up to 50 mm, depending on the magnet and version used. It operates on a non-contact principle and is connected via  screw connection. This switch is typically used alongside other limit switches to provide a reliable non-contact and contactless switching solution.

Safety Sensors For EX Zones:

Schmersal’s EX series safety sensors are designed for ATEX Zones 2 and 22, offering explosion protection with RFID technology for tamper-proof safety and magnetic latching for door stops. These safety sensors are suitable for series-wiring and come in various sizes, including M12, M18, and M30, with thermoplastic enclosures. 

They are particularly advantageous in environments requiring high hygiene standards or where large tolerances and concealed mounting are necessary. The sensors ensure no mechanical wear and are suitable for the food processing industry when combined with specific protective enclosures.

Safety Light Curtains For EX Zones:

Schmersal’s safety light curtains and grids for hazardous zones ensure the highest safety standards. Designed for environments requiring stringent safety measures, these devices offer reliable protection and integrate seamlessly into safety systems, providing a secure solution for personnel and machinery in explosive atmospheres. They are built to withstand the rigorous demands of Ex zones, maintaining operational integrity and safety compliance.

Key Transfer System For EX Zones:

Schmersal’s EX-Zones key transfer systems are designed for safety and security in hazardous areas, ensuring that keys are trapped and cannot be withdrawn in automatic mode when guards are locked. These systems are suitable for ATEX Zones 1, 21, 2, and 22 and feature robust metal enclosures. The key-operated selector switches and guard locking devices are engineered to prevent accidental machine startups, providing a fail-safe mechanism for operator safety.

Position Switches with Safety Function For EX Zones:

Schmersal’s EX series position switches with safety functions are designed for use in ATEX Zones 2 and 22, with specific models like the EX-T335 also suitable for Zones 1 and 21. These switches feature a durable metal enclosure and a variety of actuator options, ensuring oil and petroleum spirit resistance. Ideal for securing sliding and hinged guards, they ensure operational safety when paired with safety control modules, achieving Control Category 3 or 4 to ISO 13849-1. With an IP 67 enclosure rating, they can be installed in any position to fulfill diverse positioning tasks.

Pull-Wire Emergency Stop Switches For EX Zones:

Schmersal’s EX Zone pull-wire emergency stop switches are designed for environments classified as Ex Zone 21 and 22. These robust metal-encased switches feature dual-sided operation with wire lengths up to 2 x 50m, offering wire pull and breakage detection. They ensure safety with low actuation force and pull-ring reset. Models like EX-T3Z 068, EX-ZQ 900, and EX-RS655 cater to different operational ranges and come with features like release push buttons, position indicators, and IP66/67 protection, ensuring an emergency stop can be triggered from any point along the wire.

Safety-Monitoring Module For EX Zones:

Schmersal’s SRB EXi series safety monitoring modules are designed for explosive environments, suitable for Ex-Zone 2 installations. They provide intrinsically safe monitoring for emergency stop devices and safety door/guard systems in areas prone to gas and dust explosions. These modules meet ATEX category (2)GD standards, allowing for safe operation in hazardous zones.

Safety Switch for Hinged Guards For EX Zones:

Schmersal’s EX-TV.S 335 safety switch for hinged guards is designed for Ex Zone 22 environments. It features a metal enclosure with a 360° rotatable actuator shaft and repositionable actuator heads by 4 x 90°, measuring 40.5 mm x 107 mm x 65.3 mm. It offers good resistance to oil and petroleum spirit. These switches are ideal for securing hinged safety guards on machinery, ensuring operational safety as per EN 14119 standards, with positive linkage and tamper protection.

Command and Signaling Devices For EX Zones:

Schmersal’s Ex-R series command and signaling devices are essential for the man-machine interface in industrial settings, especially in explosive environments like zones 1, 2, 21, and 22. These robust devices are designed for rough conditions and have large actuating surfaces for use with gloves. They consist of a device head with a mounting flange or illuminated element, made from durable brass and shock-resistant plastic, ensuring reliable operation and safety in hazardous areas.

Belt Alignment Switch For EX Zones:

Schmersal’s Ex-Zone belt alignment switches, such as the EX-441 and EX-454, are designed for heavy-duty applications in hazardous areas classified as Ex-Zone 21 and 22. These switches, housed in robust metal enclosures, are essential for monitoring conveyor belt alignment. Misalignment triggers a signal that can halt operations or correct the belt position, ensuring safety and continuity in material handling processes.

Slack Wire Switch For EX Zones:

Schmersal’s EX-441 slack-wire switch is designed for heavy-duty applications in Ex Zones 21 and 22. Encased in a robust metal enclosure, it is ideal for material handling equipment. The switch monitors wire tension, ensuring safety by activating when the wire is correctly tensioned.

Position Switch For EX Zones:

Schmersal’s Ex Zone position switches are designed for hazardous environments, offering slow action and snap action switching principles. These robust switches come in metal enclosures with IP66 and IP67 protection classes, suitable for Ex-Zone 1 and 21. They feature a platform concept with various functional units and an adjustable lever angle in 10° steps, ensuring versatility and safety in demanding conditions.

Pre-wired Cable and Connectors:

Schmersal offers pre-wired cables, connecting cables, special and adapter cables, connectors without cables, cable glands, mounting accessories, accessories for the SD interface, additional accessories for pull-wire switches, and power supply units. These components are essential for ensuring reliable connections and power supply in safety-critical applications. Schmersal also provides downloadable software that supports the functionality and integration of their safety systems.

Lift Switchgear:

Schmersal’s Lift Switchgears is a comprehensive range of lift switchgear for various applications in the shaft pit, lift car, and machine room. This includes floor and fine-adjustment switches, positive-break door contacts, position switches, magnetic reed switches, remote alarm systems, and the USP ultrasonic elevator positioning system. These components are essential for the safe and efficient operation of lift systems, ensuring compliance with safety standards and operational requirements. The products are available pre-wired with cable and plug assemblies or terminals, tailored to meet field-specific needs.

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