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3RK1105-1BG04-2CA0

The Siemens 3RK1105-1BG04-2CA0 is a safety relay module from Siemens' 3RK series, designed for industrial safety applications. It is used to integrate safety functions into industrial control systems, ensuring that machinery operates safely and efficiently. This relay is specifically designed to work with safety circuits and is an essential component for protecting both personnel and machinery in compliance with international safety standards.

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Mail:jilineasyyi@outlook.com
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ey Features & Specifications
1. Safety & Compliance
Safety Level: SIL 3 (IEC 62061), PL e (ISO 13849-1)

Standards: IEC 62061, ISO 13849-1, EN 60204-1

Certifications: CE, UL, TÜV

2. Network & Communication
AS-Interface Version: 3.0 compliant

Max. Safety Devices: Up to 31 safety devices per network

Diagnostics: Comprehensive status monitoring via LED indicators

3. Electrical Parameters
Supply Voltage: 24V DC (19.2–30V DC)

Current Consumption: ≤150 mA

Safety Outputs:

2 OSSD (Output Signal Switching Device) outputs

Rated Load: 6A / 250V AC

Standard I/O: 4 digital inputs + 4 digital outputs (non-safety)

4. Mechanical & Mounting
Mounting: DIN Rail (35mm)

Terminals: Screw-type, accepts 0.25–2.5 mm² conductors

Protection Degree: IP20

Operating Temperature: -25°C to +60°C

5. Monitoring & Diagnostics
LED Status Indicators:

Power (green)

Network status (yellow/red)

Safety circuit status

Automatic Device Replacement Recognition

Fault Memory for troubleshooting

6. Compatibility
Emergency Stop Buttons (dual-channel)

Safety Interlocks & Light Curtains

Compatible with Siemens SIMATIC Safety PLCsTypical Applications
✔ Machine Safety Systems (presses, robots, conveyors)
✔ Emergency Stop Circuits
✔ Safety Gate Monitoring
✔ Automated Production Lines