3RH2122-2KF40
Siemens SIRIUS 3RH2122-2KF40 auxiliary coupling contactor relay, 2NO+2NC contacts, 110V DC coil, built-in surge suppression diode, spring-loaded terminal wiring, Size S00 standard size design.
Product Positioning
The 3RH2122-2KF40 is a standard coupling contactor relay in the SIRIUS series. It uses a 110V DC coil and has a built-in surge suppression diode, making it suitable for connecting to PLC output signals.
Core Product Advantages and Features
2NO+2NC contact configuration
It provides two sets of normally open and two sets of normally closed contacts to meet signal coupling and interlocking control applications.
110V DC coil
The coil has a rated voltage of 110V DC and an operating range of approximately 0.7 to 1.25 times the rated value.
Built-in surge suppression diode
The coil side integrates a suppression diode to reduce surge interference during DC coil switching.
Applicable PLC output
The spring-loaded terminal design facilitates direct connection to the PLC output module for signal coupling.
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3RH2122-2KB40
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