Product Overview

Siemens 3RN2010-1CA30 is a compact SIRIUS 3RN2 thermistor motor protection relay for temperature monitoring through a bimetallic switch. It uses a 17.5 mm enclosure and screw terminals for control-panel installation.

The exact Siemens product record specifies a 24 V AC/DC control supply, automatic reset, one normally open and one normally closed output contact, two status LEDs and electrical isolation. Confirm the sensor circuit and reset philosophy before replacement.

Commercial Status

Verified Technical Data

System Fit and Applications

• Motor-temperature monitoring circuits using a compatible bimetallic switch.
• Compact control panels requiring a 17.5 mm SIRIUS protection relay.
• Exact-part replacement where automatic reset and 1 NO + 1 NC contacts are specified.

Compatibility and Procurement Checks

• Match the complete 3RN2010-1CA30 order number and 24 V AC/DC control supply.
• Confirm that the installed sensor circuit uses a compatible bimetallic switch.
• Review 1 NO + 1 NC contact assignments and the safety implications of automatic reset.
• Confirm screw-terminal condition, warranty, delivery scope and global-shipping terms.

Lifecycle Note

No exact Siemens lifecycle wording was confirmed for the complete model 3RN2010-1CA30 in the accessible official product record. The page therefore does not infer Active, Discontinued or Obsolete status. Reconfirm lifecycle and successor guidance using the full order number.

Frequently Asked Questions

What is Siemens 3RN2010-1CA30?

It is a compact SIRIUS thermistor motor protection relay intended for motor-temperature monitoring.

What control voltage does it use?

The exact Siemens product record specifies 24 V AC/DC.

Which sensor type is supported?

Siemens identifies this version as suitable for a bimetallic switch.

How does it reset after a trip?

This version uses automatic reset, so the machine safety concept must be reviewed carefully.

What should be checked before procurement?

Verify the full order number, control voltage, sensor type, contact assignments, reset behavior and terminal condition.