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Home » Keywords: » relays and switches

Items Tagged with 'relays and switches'

ARTICLES

The Schaltbau Eddicy R300 high-voltage relay.

Schaltbau Eddicy R300 high-voltage relay

The high-voltage relay is compact and capable of switching currents up to 25 A.
October 29, 2025

The relay is built to withstand voltages up to 10k V. 


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01 PM 0823 CLM John Siegenthaler feature
Hydronics Workshop | John Siegenthaler

Relays and switches — part two

Building the brains for custom hydronics systems.
John Siegenthaler, P.E.
August 1, 2023

Last month, we covered the basics of classifying switches and relays based on poles and throws. Once you learn these, it’s easy to apply switches and relays to create “hard-wired” control logic - part two.


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01 0723 Column John Siegenthaler main image
Column | John Siegenthaler

John Siegenthaler: Relays and switches — part one

The basics.
John Siegenthaler, P.E.
July 3, 2023

The basics of relays and switches - part one.


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