Yokogawa F3SP71-4S Safety Relay Module
- Product Introduction: It is a safety relay module belonging to Yokogawa’s ProSafe – RS safety instrumented system, designed based on IEC 61508 standard, with SIL 3 safety integrity level. It is used to implement safety interlock logic and emergency shutdown functions in industrial processes to ensure the safety of personnel and equipment.
- Technical Specifications:
- Safety Integrity Level: SIL 3, compliant with IEC 61508 and IEC 61511.
- Number of Channels: 4 safety – related relay output channels.
- Output Contact Capacity: 250V AC, 5A per channel (resistive load).
- Response Time: ≤ 10ms.
- Working Voltage: 24V DC, power consumption ≤ 250mA.
Detailed content
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- Working Temperature: -20~70°C.
- Redundancy: Supports 1:1 redundant configuration.
- Functional Characteristics:
- Forced safety state: Enters a safe state when power is lost or a fault is detected.
- Self – monitoring: Continuously monitors relay contacts, power supply and internal circuits for faults.
- Dual – coil design: Prevents false operation due to coil failure, ensuring reliable safety function execution.
- Seamless integration: Works with ProSafe – RS safety controllers for complex safety logic programming.
- Fault indication: LED indicators for channel status and fault alarms for quick troubleshooting.
- Application Scenarios: Used in high – risk industries such as petroleum chemical, chemical, nuclear power and pharmaceutical. It is applied to safety interlock functions such as emergency shutdown (ESD), fire and gas protection (F&G), and over – limit protection of key process parameters, ensuring the safety of the production process.












