Safety Products
ARK Automation supplies safety relays for industrial machinery, automation systems, light curtains, emergency stops, safety gates, interlocks, muting applications, two-hand control, and other machine safety functions. Safety relays are used to monitor safety devices and help trigger a safe machine response when unsafe conditions are detected.
Safety relays are commonly used as part of a broader machine safety product system alongside safety light curtains, emergency stop buttons, access gates, interlocks, and modular machine guarding systems. They can help support reliable machine shutdown, restart control, and monitoring of connected safety devices.
Safety relays monitor safety input devices and respond when a safety condition changes. For example, if a light curtain is interrupted, an emergency stop is pressed, or an access gate is opened, the safety relay can signal the machine control system to stop or prevent hazardous motion.
Important safety relay features may include:
Safety relays are often used with safety light curtains, emergency stops, safety gates, and interlocks. They help connect safety devices to the machine control system and support the required safety response when a device is activated.
In many applications, safety relays are used alongside physical guarding. For example, a machine safety system may include modular guarding, hinge gates, slide gates, light curtains, emergency stops, and safety relays working together to support safer access and operation.
Safety relays are often a practical choice for simpler safety circuits, such as monitoring one or more emergency stops, light curtains, or gate switches. They are commonly used when the required safety function is straightforward and does not need advanced logic, expansion, or communication modules.
Programmable safety controllers are generally better suited for more complex safety systems with multiple inputs, outputs, safety zones, diagnostics, communication requirements, or future expansion needs.
The right choice depends on the machine, the number of safety devices, the required safety functions, and how the system may need to change over time.
Safety relays can be used in a wide range of industrial and manufacturing environments. Common applications include:
For examples of common guarding layouts and machine safety use cases, visit our machine guarding applications page.
ARK Automation offers a range of safety relays and control units for different machine safety applications, including models such as AD SR0, AD SR1, AD SRE3, AD SRE4, AD SRM, AD SRT, AUSX, and AUSXM.
Available safety relay options may support light curtain monitoring, emergency stop monitoring, muting, two-hand control, start/restart interlock, external device monitoring, and other safety functions.
Use the product table below to review available safety relay models, product descriptions, and documentation.
When planning a safety relay setup, it is important to consider the safety devices being monitored, the machine hazards involved, the required stop function, restart requirements, external device monitoring, operator workflow, maintenance access, and how the relay will connect to the existing control system.
Depending on the machinery and facility, ANSI, OSHA, risk assessment, and other safety standard considerations may influence the safety devices, relay type, wiring, and overall safety system design.
Before requesting product support or a quote, it is helpful to gather:
Learn more about safety relays, safety relay applications, light curtain monitoring, emergency stop monitoring, muting, two-hand control, and how safety relays fit into industrial machine safety systems.
A safety relay is a device used to monitor safety inputs, such as emergency stops, light curtains, gate switches, or interlocks. When an unsafe condition is detected, the relay can signal the machine control system to stop or prevent hazardous motion.
Safety relays are commonly used for emergency stop monitoring, light curtain monitoring, safety gate monitoring, machine guarding systems, muting applications, two-hand control, robotic cells, conveyors, and other industrial safety applications.
A safety relay is usually used for simpler safety circuits, while a programmable safety controller is better suited for more complex systems with multiple safety devices, safety zones, diagnostics, communication modules, or future expansion needs.
Yes. Safety relays are commonly used with safety light curtains to monitor the light curtain output and trigger the required machine safety response when the protected area is interrupted.
ARK Automation supplies safety relay and control unit models including AD SR0, AD SR1, AD SRE3, AD SRE4, AD SRM, AD SRT, AUSX, and AUSXM.
Need help choosing a safety relay for your machine, light curtain, emergency stop, access gate, or industrial safety system? Contact ARK Automation to discuss your safety devices, relay requirements, and related machine safety products. You can also upload related files, drawings, layouts, or product lists using the form below.
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