3SK1122-1CB42
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$185.18
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The Siemens 3SK1122-1CB42 is a premium SIRIUS safety relay from Siemens' Advanced Series, specifically designed for industrial automation safety systems. This factory-grade relay operates at 24 V DC control voltage and features solid-state outputs for reliable, instantaneous switching with time delay functionality. Compact and robust, it supports critical safety category 4 applications ensuring maximum protection for machinery and personnel. With its screw terminal connections and DIN rail mounting, the 3SK1122-1CB42 offers easy installation and integration into a wide range of control systems. This model is recognized for its precise timing adjustments, with a release delay range from 0.5 to 30 seconds, helping to tailor safety operations to exact process requirements. Ideal for demanding environments where safety and uptime are paramount, the Siemens 3SK1122-1CB42 is a dependable solution for your machine safety control[1][2][3].
Key Features of Siemens 3SK1122-1CB42
- Advanced Series SIRIUS safety relay with solid-state outputs ensuring rapid and safe switching.
- Control supply voltage: 24 V DC with an operating range factor from 0.8 to 1.2 of rated voltage.
- Adjustable release delay time from 0.5 up to 30 seconds for customized safety timing.
- Compliance with safety category 4, suitable for highest safety integrity levels.
- Compact dimensions: 22.5 mm width, 100 mm height, and 121.6 mm depth for space-saving panel design.
- Screw terminal connection supports 0.5 to 2.5 mm² conductor sizes for easy wiring.
- Mounting flexibility with DIN rail snap-on and screw fixing options.
- Reliable operation in temperatures from -25°C to +60°C with IP20 protection rating.
- Integrated monitoring with a typical recovery time after power failure of 30 ms.
Technical Specs of 3SK1122-1CB42
Explore Siemens 3SK1122-1CB42 specifications for detailed parameters before installation.
| Parameter | Specification |
|---|---|
| Control supply voltage | 24 V DC |
| Release delay time | 0.5 to 30 seconds (adjustable) |
| Output type | Solid-state outputs |
| Safety category | Category 4 |
| Operating temperature | -25 to +60°C |
| Dimensions (W×H×D) | 22.5 mm × 100 mm × 121.6 mm |
| Connection type | Screw terminals (0.5–2.5 mm²) |
| Protection rating | IP20 |
Applications / Use Case
This Siemens 3SK1122-1CB42 is commonly used in industrial automation environments that require stringent safety controls, such as machine automation and production line systems. It is ideally suited for factory control panels where rapid safety relay activation and reliable operation are essential to protect personnel and avoid costly downtime. The adjustable delay functionality enables integration into complex safety circuits in packaging and conveyor operations, offering tailored protection timing. Its robust design and certified safety level make it indispensable in process control setups demanding maximum reliability and compliance with international safety standards[1][3][5].
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