Contactor,circuit breaker,solar inverter,electric meter,solar batteries
The P2RF-08-S is a relay socket launched by OMRON.
Basic Information: It is a member of the P2RF-S series, featuring screwless clamp terminals and finger protection. This 8-pin socket is designed for use with the G2R-2-S series relays and supports DIN rail mounting.
Electrical Parameters: Rated voltage is 300VAC, rated current is 5A. The insulation voltage between coil and contact terminals is 4000VAC; between terminals of the same polarity is 1000VAC; between terminals of different polarities is 3000VAC. The minimum insulation resistance is 1000MΩ.
Product Features: The screwless clamping method significantly reduces wiring time. The spring firmly secures conductors and provides vibration resistance. All terminals support double wiring. Coil terminals and contact terminals are separated, ensuring a safe terminal layout. A unique pop-up mechanism facilitates easy relay replacement. The socket is also equipped with a nameplate.
Dimensions: 92 (height) × 18 (width) × 32.6 mm (depth).
Application Scenarios of OMRON P2RF-08-S Relay Socket
The P2RF-08-S is an 8-pin screwless clamp terminal relay socket from OMRON, specifically designed for the G2R-2-S series general-purpose relays. It adopts DIN rail mounting and is equipped with finger protection. Its application scenarios are mainly concentrated in industrial automation and electrical control fields that require efficient wiring, safe and reliable connection, and easy maintenance. Detailed classifications are as follows:
- Core Application Fields and Scenarios
- Industrial Automation Control
General Mechanical Equipment Control: Used in the electrical control circuits of machine tools, printing machines, packaging machines, textile machinery, etc., to connect control relays for functions such as motor start-stop, valve control, and action sequence switching.
Production Line Automation: Applied in signal conversion and control of automated production lines like assembly lines, inspection lines, and sorting systems, supporting fast wiring and maintenance to improve line deployment efficiency.
PLC System Interface: Serves as a bridge between PLC (Programmable Logic Controller) output signals and field executive components (such as contactors and solenoid valves), achieving safe isolation of weak current control over strong current.
- Process Control and Monitoring Systems
Temperature/Pressure/Flow Control: Cooperates with instruments such as temperature controllers and pressure switches for automatic regulation in HVAC systems, refrigeration equipment, boiler control, and water treatment systems.
Industrial Furnace Control: Utilized in heating element control and temperature regulation circuits of furnaces in metallurgy, ceramics, glass, and other industries.
Chemical Process Control: Applied in auxiliary control circuits outside hazardous areas, reducing the risk of wiring errors with screwless terminals and improving system reliability.
- Building Electrical and Building Automation
Building Automation System (BAS): Used for relay connection in air conditioning systems, lighting systems, elevator control, and fire alarm linkage systems, with double wiring design facilitating system expansion.
Intelligent Lighting Control: Adopted in partitioned lighting control circuits of large buildings such as shopping malls, hotels, and office buildings to achieve energy conservation and scene-based control.
Security Systems: Applied in signal switching and linkage control of access control, monitoring, and alarm systems, with finger protection design enhancing maintenance safety.
- Transportation and Energy Fields
Rail Transit Auxiliary Control: Used for relay connection in door control systems, lighting systems, and ventilation systems of subways and light rail vehicles, with vibration-resistant design adapting to vehicle operating environments.
New Energy Equipment: Applied in auxiliary control circuits of solar inverters and energy storage systems to achieve safe and reliable signal conversion.
Power System Auxiliary Equipment: Utilized in secondary control circuits of substations and distribution rooms for the control and signal indication of circuit breakers and disconnectors.
- Automotive and Special Industries
Automotive Manufacturing: Used in equipment control of welding production lines, painting lines, and final assembly lines, supporting rapid model change and maintenance to meet flexible production needs.
Semiconductor/Electronic Manufacturing: Applied in equipment control in clean room environments, where screwless terminals reduce dust generation and improve cleanliness control levels.
Aerospace Ground Equipment: Utilized in control circuits of airport boarding bridges, baggage handling systems, and radar equipment, requiring high reliability and anti-interference capability.
- Characteristics of Particularly Suitable Application Scenarios
| Scenario Characteristics | Product Advantage Matching |
| Frequent maintenance/relay replacement | Unique pop-up mechanism allows easy relay replacement without tools, reducing downtime |
| Large-scale wiring projects | Screwless clamp terminals cut wiring time by 70%, avoiding poor contact caused by over-tightening or under-tightening |
| High-safety-required environments | Finger protection structure + separated coil/contact terminal design prevent electric shock risks and comply with IEC safety standards |
| Vibration/impact environments | Spring clamping fixes conductors firmly, providing excellent vibration resistance and suitability for locations near motors or mobile equipment |
| Need for double wiring/branch connection | All terminals support double wiring, facilitating bridging and branching and simplifying complex circuit design |
III. Typical Application Examples
- Motor Self-locking Control Circuit: Connected to G2R-2-S relays to realize motor start-stop-self-locking control, with screwless terminals ensuring long-term reliable connection.
- Solenoid Valve Group Control: In pneumatic/hydraulic systems, it is used to control the on-off of multiple solenoid valves to realize sequential actions of cylinders/hydraulic cylinders.
- Alarm Signal Linkage: In fire alarm systems, it connects relays to automatically cut off non-essential power supplies and activate smoke exhaust equipment after an alarm signal is triggered.
- Equipment Status Monitoring: Feedback equipment operating status (such as motor overload, valve position) through relay contacts and transmit it to the monitoring system for remote display and alarm.
- Application Limitations and Precautions
- Electrical Parameter Limitations: With a rated current of 5A and rated voltage of 300VAC, it is not suitable for directly controlling high-power loads (e.g., motors > 1kW). Contactors are required to expand capacity.
- Environmental Conditions: Operating temperature ranges from -25°C to +55°C, and humidity ranges from 35% to 85%RH. It is not suitable for extreme temperature and humidity or corrosive environments.
- Relay Matching: It is only applicable to the 8-pin G2R-2-S series general-purpose relays and cannot be mixed with other models.
With its three core advantages of screwless fast wiring, safety protection, and easy maintenance, the P2RF-08-S has become an ideal choice for scenarios requiring efficient deployment and reliable operation in the field of industrial automation and electrical control. It is particularly suitable for projects pursuing engineering efficiency and long-term stability.
