Siemens SIRIUS 3RQ4 Plug-In Coupling Relay, 24 V DC, 1 Changeover Contact, Push-In Terminal

The Siemens SIRIUS 3RQ4 Plug-In Coupling Relay (3RQ4118-2AM00) is a compact and reliable electromechanical relay designed for industrial control applications. With a 24 V DC control supply voltage and a single changeover contact (SPDT), it provides efficient switching for auxiliary circuits. The push-in terminal technology ensures fast and tool-free wiring, reducing installation time and maintenance effort. This relay is part of the Siemens SIRIUS 3RQ4 series, known for its high quality and long service life.

Advantages

• Push-in terminals for quick and secure wiring without tools
• LED indicator for clear visual status display
• Compact 6.2 mm width saves space on DIN rail
• High mechanical endurance of 10,000,000 switching cycles
• Suitable for a wide temperature range from -25 to +60 °C

Suitable for

• Industrial automation and control panels
• Switching of AC and DC loads in auxiliary circuits
• Signal isolation and amplification in PLC systems
• DIN rail mounted applications requiring space-saving components

Key specifications

• Product Type: Coupling Relay
• Series: SIRIUS 3RQ4
• Control Supply Voltage: 24 V DC
• Number of Contacts: 1 Changeover Contact (SPDT)
• Terminal Type: Push-in Terminal
• Rated Operational Current (AC-15): 3 A @ 230 V AC
• Rated Operational Current (DC-13): 1 A @ 24 V DC
• Rated Insulation Voltage: 250 V
• Mounting Type: DIN Rail
• Operating Temperature Range: -25 to +60 °C
• Contact Material: Silver Nickel (AgNi)
• Degree of Protection: IP20 (Terminals), IP40 (Front)
• Electrical Endurance: 100,000 switching cycles
• Mechanical Endurance: 10,000,000 switching cycles
• Integrated Features: LED Indicator
• Width: 6.2 mm
• Height: 93 mm
• Depth: 76 mm
• Standards Compliance: IEC 60947, EN 60947
• Auxiliary Circuit Type: Electromechanical

Recommendations

For optimal performance, use with Siemens SIRIUS 3RQ4 accessories and ensure proper DIN rail mounting. The push-in terminals accept solid or stranded wires with ferrules. Always verify the load characteristics and ensure the relay is used within its rated parameters.