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Siemens SIRIUS 3RH1921-1CA10

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3RH1921-1CA10

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The Siemens 3RH1921-1CA10 is a versatile auxiliary switch block designed to enhance control systems. It operates efficiently across a range of voltages and temperatures, offering reliable performance.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Technical specifications for 3RH1921-1CA10

ManufacturerSiemens
Product TypeAuxiliary Switch Block
Product LineSIRIUS
Part Number3RH1921-1CA10
Weight0.06 lbs (0.03 kg)
Number of Poles1 pole
Contact Configuration1 N.O.
Terminal TypeScrew-type terminals
IP RatingIP20
Operating Current 24 V AC-156.0 A
Operating Current 400V AC-153.0 A
Operating Current 690V AC-151.0 A
Minimum Operating Temperature-25°C
Maximum Operating Temperature60 °C
Minimum Storage Temperature-55 °C
Maximum Storage Temperature80 °C
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The Siemens 3RH1921-1CA10 is classified as an auxiliary switch block within the SIRIUS series. This device consists of a single pole and is configured with one Normally Open (N.O.) contact, facilitating efficient switching in control systems. It utilizes screw-type terminals for solid electrical connections, enhancing reliability during operation.

This switch block is designed to perform effectively with an IP20 protection rating, indicating it is suitable for indoor applications while being safeguarded against solid foreign objects larger than 12 mm. The 3RH1921-1CA10 supports a maximum operating current of 6.0 A at 24 V AC, making it ideal for low voltage applications. Additionally, it can manage 3.0 A at 400 V AC and 1.0 A at 690 V AC, providing versatility for various electrical set-ups.

Temperature-wise, this unit can operate within a minimum range of -25°C, extending up to 60°C, which makes it applicable in many working conditions. When stored, this block can endure temperatures as low as -55°C and as high as 80°C, ensuring durability and reliability over time. The Siemens 3RH1921-1CA10 auxiliary switch block is designed to meet the demands of modern automation systems, ensuring robust performance under different environmental factors.