Alternating relay for pumps or compressors

General Informations


The alternating relays are required to alternate the load between pumps and compressors, including in response to a fault.
The goal is to balance the load placed on the machines and even out machine wear.


- Alternating up to four pumps / compressors
- Switchover to reserve pump(s) when fault occurs (not AVR90)
- Selectable alternating mode (AVR300/AVR400)