RTA421

Limit switch with transmitter supply for monitoring current or voltage signals

General Information
Input / Output
Electrical Data
Mechanical Data
Certification / Approvals
Additional Information
Endress+Hauser
SKU: RTA421

Highlights

  • LC display for limit values and bar graph
  • Input: 1 x Analog (U, I)
  • Output: 1 x transmitter power supply
  • 2 relays for limit monitoring (with change-over contacts)
  • Transmitter supply 196to250 V AC, 97to127 V AC, 20to250 V AC/DC

Fields of application

  • Plant and apparatus engineering
  • Switch cabinets
  • Process monitoring
  • Process control

Details

The RTA421 limit switch from Endress+Hauser is used for monitoring and safeguarding industrial processes. The device evaluates current signals (0/4...20 mA) and voltage signals (0/2 to 10 V) and switches two independently operating relays at the output if previously defined limit values are exceeded or not reached. Both limit values can be read simultaneously in the display. Applications, e.g. pump controls in wastewater technology, level monitoring in tanks can thus be implemented at low cost.


We find the right product for you
What do our customers say

Somya Gupta

The conversation was highly helpful to me. I want to know about the suitable sensors that can be used for level measurements for conical tank systems. Mr. Pedro has quickly responded and explained in very ease way. It was nice interacting with him.

Questions & Answers

Ask a question, and our experts will reply shortly.

RTA421
Configure & Order
Select options and get a more accurate price and delivery time. At the end of the configuration, you can directly purchase the configured device or share it with your colleagues.
We find the right product for you
What do our customers say

Somya Gupta

The conversation was highly helpful to me. I want to know about the suitable sensors that can be used for level measurements for conical tank systems. Mr. Pedro has quickly responded and explained in very ease way. It was nice interacting with him.

Product Details