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Siemens Industrial Controls 3RH1921-1DA11 Auxiliary Contact Block Side Mount

Manufacturer

Picture for manufacturer Siemens Industrial Controls

Part Number

3RH1921-1DA11
6 reviews
Sale Price

$29.24

2 left at this price

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Usually delivered within 2 days

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Product Details

The Siemens 3RH1921-1DA11 is a side-mounted auxiliary contact block designed for use with Siemens 3RH series contactors and overload relays. This compact auxiliary switch block provides additional switching contacts to expand control circuit capabilities in industrial automation applications.

Key Features:

  • Side mounting configuration for space-efficient installation
  • NO/NC contact configuration (one normally open and one normally closed contact)
  • Compatible with Siemens 3RH series contactors and relays
  • Rated for reliable performance in industrial control applications
  • Snap-on design for quick and easy installation without tools
  • Complies with international electrical standards

This auxiliary contact block allows you to add extra control contacts to existing Siemens contactors, enabling more complex control schemes, interlocking functions, and signal transmission to PLCs or other control devices. The side-mount design preserves vertical space in control panels while maintaining easy access for wiring.

Amazing. I received my order the next day! The item was exactly what I ordered and I was able to get back on the water quickly.

All went as expected. Thank you.

Recently ordered a Megan y pipe for my 350z, received the package in less than a week and was given good customer service when I called to check on the package. Will use this site again if I need parts in the future!

Wish there was picture or description of the part - hopefully is it a Sensor AL72118 for Air Lift system.

Easy to order and purchase.

Easy

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