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Siemens SIRIUS 3RH1921-1FE22

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3RH1921-1FE22

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Siemens' 3RH1921-1FE22 is an auxiliary switch designed for enhancing motor contactor functionality. This device is rated for a voltage of 690 VAC and is compatible with solid-state applications.

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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 3RH1921-1FE22

ManufacturerSiemens
Product TypeAuxiliary Switch
Product LineSIRIUS
Part Number3RH1921-1FE22
UPC754554510996
Weight0.19 lbs (0.09 kg)
Switch TypeSolid State Compatible
Rated Voltage690 VAC
Contacts Configuration1 NO + 1 NC Encapsulated
Current Rating6A
Additional Contact Configuration1 NO + 1 NC Not Encapsulated
ApplicationFor use with Motor Contactors
Mounting TypePanel or Contactors Mount
Protection ClassIP20
ToleranceN
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The 3RH1921-1FE22 from the Siemens SIRIUS series serves as an auxiliary switch, enhancing circuit control. Rated to handle voltages up to 690 VAC, this switch is suitable for solid-state applications.

It incorporates a contact configuration comprising one normally open (NO) and one normally closed (NC) encapsulated contact, alongside an additional pair of one NO and one NC contact that are not encapsulated. The 3RH1921-1FE22 switch supports current ratings of up to 6 A, making it versatile for various applications. Primarily, it finds its application in conjunction with motor contactors, facilitating efficient switching operations.

For installation, the device can be mounted on panels or directly onto contactors. Complying with an IP20 protection class designation, it safeguards against solid objects larger than 12 mm. The weight of the switch is approximately 0.08 kg, and it has a tolerance specification of N, indicating standard tolerance levels suitable for many industrial environments.