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3RH1921-2CA10 Siemens
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Availability
In stock
Manufacturer
Siemens
HS code
85365080
Ship to
United States
Express delivery to the United States
Full 12-month warranty
Secure payment process
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The Siemens 3RH1921 Series Auxiliary Switch Block is a compact and reliable component designed for seamless integration with contactors used in motor switching applications. This auxiliary switch block features a single normally open (NO) contact, ensuring straightforward connectivity and functionality within your control systems. With a robust cage clamp connection, it offers a secure and maintenance-free electrical connection, enhancing the durability and longevity of the device. Crafted to meet the DIN EN50005 standard, this switch block is engineered for precision and consistency in performance. The dimensions of 38 x 10 x 51 mm make it an ideal choice for installations where space is at a premium, without compromising on accessibility or ease of use. The switch block operates efficiently within a wide ambient temperature range, from -25°C to +60°C, making it suitable for a variety of industrial environments. Its mechanical operating cycles are rated typically at 10,000,000, and it has an electrical operating cycle of 200,000 at AC-15, 230 V, which speaks to its resilience and reliability in demanding operational conditions. With an insulation voltage rated at 690 V and an impulse voltage resistance of 6 kV, the Siemens 3RH1921 Series Auxiliary Switch Block is designed to withstand challenging electrical environments, ensuring safety and reliability in your electrical control systems. Its snap-on mounting design allows for quick and easy installation, making it a convenient addition to your equipment. This auxiliary switch block is a testament to Siemens' commitment to quality and innovation, providing a dependable solution for enhancing the control and functionality of motor contactors. Whether you're upgrading existing systems or building new industrial controls, this auxiliary switch block is an excellent choice for ensuring efficient and reliable operations.
Typical applications
- Integration into motor control circuits for additional switching functions
- Expansion of contactor functionalities in industrial automation systems
- Use in control panels to provide auxiliary contact feedback signals
- Implementation in electrical interlocking systems for enhanced operational safety
- Application in conveyor systems for start/stop control processes
- Utilisation in HVAC systems for auxiliary control tasks
- Inclusion in packaging machinery for sequential control operations
- Employment in manufacturing automation for process control enhancements
- Installation in pump control circuits for auxiliary switching requirements
- Incorporation in material handling equipment for additional control circuitry
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