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Siemens 24V DC Safety Relay with 4 Safety Contacts, IP67 Rated, Time Delay, Spring Terminal 3SK1121-2CB41
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Height | 122mm |
| Length | 100mm |
| Model | 3SK1121-2CB41 |
| IP Rating | IP67 |
| Width | 22.5mm |
| Series | 3SK1 |
| Maximum Operating Temperature | 60°C |
| Minimum Operating Temperature | -25°C |
| Safety Category | PLe Category 4 |
| Terminal type | Cage Clamp |
| Hazardous Area Certification | IECEx, ATEX |
| Standards/Approvals | CE |
| Coil Voltage | 24V dc |
| Safety Contacts | 4 |
Key Features
- Operates at 24V DC with spring terminal connections for secure wiring.
- Provides time delay function suitable for safety-critical control systems.
- Compact design with dimensions 100x22.5x122 mm to fit limited space installations.
- Complies with CE certification and IECEx, ATEX hazardous area standards.
- Meets ISO 13849-1 Safety Category PLe Category 4 and provides SIL 3 safety integrity level.
- Durable construction with IP67 rating ensuring protection against dust and water ingress.
- Wide operating temperature range from -25°C to 60°C for versatile environments.
- Ideal for emergency stop circuits, conveyor safety monitoring, and automated production lines.
Product Description
Siemens 3SK1121-2CB41 24V DC Safety Relay with 4 safety contacts, IP67 rated, is a high-integrity safety relay designed for industrial automation and electrical safety systems. It operates on 24 volts DC and includes a time delay function for versatile safety applications. The relay’s compact dimensions of 100mm length, 22.5mm width, and 122mm height support easy fitting into control panels with limited space.
This model is part of the Siemens SIRIUS series and features spring terminal connections that allow quick and reliable wiring. Compliance with IECEx and ATEX certifications makes it suitable for hazardous area installations. The relay attains SIL 3 and meets ISO 13849-1 PLe Category 4 safety requirements, ensuring top-level protection in critical systems.
Its IP67 ingress protection rating ensures it is dust tight and protected against water immersion, enabling use in challenging industrial environments with contamination and moisture concerns. The wide operational temperature range from -25°C to 60°C further extends its usability across various climate conditions.
Common industrial applications for the Siemens 3SK1121-2CB41 include emergency stop circuits, conveyor system safety monitoring, robotic safety controls, and automated production lines requiring dependable safety assurance. The relay’s configurable settings enhance its adaptability for diverse safety monitoring scenarios.
Operates at 24V DC with spring terminal connections for secure wiring. Provides time delay function suitable for safety-critical control systems. Compact design with dimensions 100x22.5x122 mm to fit limited space installations.
Complies with CE certification and IECEx, ATEX hazardous area standards. Meets ISO 13849-1 Safety Category PLe Category 4 and provides SIL 3 safety integrity level. Durable construction with IP67 rating ensuring protection against dust and water ingress.
Wide operating temperature range from -25°C to 60°C for versatile environments. Ideal for emergency stop circuits, conveyor safety monitoring, and automated production lines.
This Safety Relay is an essential component for industrial, manufacturing, and automation safety applications requiring reliable performance and compliance with stringent safety standards. Explore the Electronics & Electricals category for more Siemens relays and related automation products at EnvMart.
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Frequently Asked Questions
It operates at 24V DC, making it suitable for various industrial applications.
This model has an IP67 rating, ensuring it is dust tight and protected against water immersion.
The dimensions are 100mm in length, 22.5mm in width, and 122mm in height, allowing for compact installation.
It features 4 safety contacts, providing multiple outputs for safety-critical applications.
It complies with ISO 13849-1 Safety Category PLe Category 4 and provides SIL 3 safety integrity level.
The operating temperature range is from -25°C to 60°C, suitable for diverse environments.
It uses cage clamp terminal connections for secure and reliable wiring.
Yes, it is certified for hazardous areas with IECEx and ATEX approvals.
The time delay function is suitable for safety-critical control systems, allowing for controlled operation in emergency situations.
It is ideal for emergency stop circuits, conveyor safety monitoring, and automated production lines.
The country of origin for this model is Germany.
It holds CE certification, ensuring compliance with European safety standards.
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