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Safety Relays

Safety Relays

Dual-channel Design Safety Relay
Safety relays are an important link between industrial safety equipment and control systems, ensuring seamless integration and optimal safety performance.
Suitable for industrial sites with high safety requirements, monitoring various signals, including emergency stop signals, safety door switch signals, safety grating signals, two-hand button signals, etc. in addition to safety light curtain signals. The main function is to protect mechanical operators and mechanical equipment exposed to different degrees of danger.
Dual-channel design: Monitor two transistor signals - power off switch, safety light barrier, etc. DADISICK safety relays can also monitoring two NC switch signals with the peripheral circuit.
Self-monitoring and diagnostics: Safety relays continuously monitor internal components, detecting and reporting faults for proactive maintenance.
Safety Relay Features                                                                                                                 
Technical Superiority
Our Safety Relay series offers advanced safety monitoring capabilities, designed to meet the stringent safety requirements of EN/ISO13849-1 Cat.4 and IEC 62061 SIL3. These relays are equipped with proven dual-channel safety monitoring circuit designs and high-speed mutual verification technology, ensuring safe and efficient response times. They can monitor various safety signals, including emergency stop buttons, safety doors, safety light curtains, and two-hand switches, providing precise control and reliable safety functions. From adapting to specific industry standards to seamlessly integrating into existing systems, our safety relays are meticulously designed to ensure optimal performance and reliability.
Interchangeability safety relay
Flexible Installation and Configuration
DADISICK safety relay module is suitable for monitoring various signals in industrial sites with high safety requirements. The compact design of our Safety Relays reduces installation space, making them suitable for a wide range of industrial applications. They feature a width of just 22.5mm and come with screw or spring terminals for flexible installation options. The relays support PLC signal output and have I/O LED indicators for easy status monitoring. Additionally, they offer automatic/manual reset configurations and multi-function configuration dip switches, allowing for quick system setup and adaptation to different safety requirements.
High Reliability and Durability
Our Safety Relays are built to maintain high performance in demanding industrial environments. They have an operating temperature range of -25℃ to 85℃ and can withstand storage temperatures from -40℃ to 105℃. Constructed with flame-retardant PA66 material, these relays offer excellent resistance to harsh conditions. They also feature a long electrical life of 80,000 cycles and meet international standards such as EN 60947-1:2007/A2:2014 and EN 60947-5-1:2004/A1:2009, ensuring reliability and compatibility in global industrial settings.
DADISICK Safety relays
Application of Safety Relay                                                                                                        
How Safety Relay Guaranteed Security of Two-Hand Controls
How Safety Relay Guaranteed Security of Two-Hand Controls
Common Faults and Troubleshooting of Industrial Safety Relays
Common Faults and Troubleshooting of Industrial Safety Relays
Safety Relay
Wiring Diagram of Emergency Stop Button and Safety Relay: How to Properly Connect for Safety?
Safety Relay Products List                                                                                                         
Safety Relay LS-A
Safety Relay LS-A
Price Level
★✫✫✫✫
Power supply
24 V DC
Number of contacts
3NO + 1NC (PNP or NPN)
Transistor signal output
<500 mA 24 V DC
Maximum switching capacity
12 A (Distributed on all safety output contacts)
Contact resistance
<100 mΩ
Contact material
AgSnO2 + 0.2µmAu
Electrical life
80,000 times
Release response time
<30 ms (From input to output)
Impulse withstand voltage
2.5kV
Safety Relay Ter-A
Safety Relay Ter-A
Price Level
★★✫✫✫
Power supply
24 V DC
Relay safety output
3NO + 1NC (PNP or NPN)
Transistor signal output
500mA 24VDC
Maximum switching capacity
12 A (Distributed on all safety output contacts)
Contact resistance
<100 mΩ
Contact material
AgSnO2 + 0.2µmAu
Electrical life
80,000 times
Release response time
<30ms from input to output
Maximum input cable resistance
200Ω
Safety Relay QSRN
Safety Relay QSRN
Price Level
★★✫✫✫
Power supply
24 V DC
Relay safety output
3NO + 1NC (PNP or NPN)
Transistor signal output
<500 mA 24 V DC
Maximum switching capacity
12 A (Distributed on all safety output contacts)
Contact resistance
<100 mΩ
Contact material
AgSnO2 + 0.2µmAu
Operating temperature
-25℃ ~ 85℃
Electrical life
80,000 times
Release response time
<30ms(From input to output)
Impulse withstand voltage
2.5kV
Safety Relay LS-3A1B.C
Safety Relay LS-3A1B.C
Price Level
★★★✫✫
Power supply
24V DC/AC
Number of contacts
3NO + 1NC
Switching capacity
AC-15, 5A/230V; DC-13, 5A/24V
Wire resistance
≤15Ω
Contact material
AgSnO2 + 0.2μm Au
Electric shock mechanical life
More than 10⁷ times
Rated insulation voltage
250V AC
Rated impulse voltage
6000V (1.2/50us)
Insulation strength
1500V AC, 1min
Safety Relay LS-2A4S
Safety Relay LS-2A4S
Price Level
★★★★✫
Power supply
20V~30V DC
Number of contacts
2NO
Switching capacity
5A/250V AC; 5A/24V DC; 2A (24V DC)
Wire resistance
≤15Ω
Contact material
AgSnO2
Operating temperature
-20℃~+60℃
Rated insulation voltage
250V AC
Rated impulse voltage
6000V (1.2/50us)
Insulation strength
1500V AC, 1min
Our Safety Relays provide dependable protection for your industrial systems. Designed to ensure safety and reliability, DADISICK's relays are essential components in safeguarding equipment and processes, giving you peace of mind.
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Safety Relays

ModelDescription
Safety Relay Ter-ASafety Relay Ter-ATer-Asafety relay for Dadisick Safety Light Curtains
Safety Relay LS-ASafety Relay LS-ALS-Asafety relay for Dadisick Safety Light Curtains
Safety Relay LS-3A1B.CSafety Relay LS-3A1B.CLS-3A1B.CSafety relay for Dadisick safety products
Safety Relay LS-2A4SSafety Relay LS-2A4SLS-2A4SSafety relay for Dadisick safety products
Safety Relay QSRNSafety Relay QSRNQSRNsafety relay for Dadisick Safety Light Curtains
Safety Relay FAQ                                                                                                                                            
1. Can you provide OEM services for industrial safety relays?
Yes, we offer comprehensive OEM services, including customized product selections and laser marking. Our team collaborates closely with clients to deliver tailored solutions that meet their specific needs and requirements.
2. How does your product's interchangeability compare with competitors?
Our safety relays offer seamless interchangeability with competitors' products. This means that our relays can seamlessly replace or upgrade existing safety systems, ensuring compatibility and minimizing downtime.
3. What customization options are available for your safety relays?
Our safety relays can be customized to suit a wide range of applications. This includes options such as input types, output configurations, and communication protocols. We prioritize flexibility and adaptability to meet our customers' unique needs.
4. How do you ensure the quality and reliability of your safety relays?
Quality and reliability are paramount to us. We adhere to stringent quality control processes throughout the manufacturing process. Our safety relays undergo rigorous testing to ensure they meet industry standards and deliver consistent performance in demanding environments.
5. What certifications do your safety relays hold?
Our safety relays are certified to meet international standards such as EN ISO 13849 and CE. These certifications validate our commitment to quality and compliance with regulatory requirements, providing assurance to our customers.
6. How can I integrate your safety relays into my existing system?
Integrating our safety relays into your existing system is straightforward. We provide comprehensive documentation and technical support to assist with installation and setup. Our team is also available to offer guidance and assistance throughout the integration process.
7. What support do you offer for troubleshooting and maintenance?
We provide ongoing technical support to address any troubleshooting or maintenance issues that may arise. Our team of experts is dedicated to ensuring the continued reliability and performance of our safety relays, and we are readily available to assist our customers.
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