YRA002 · ALTERNATING RELAY FOR TWO MOTORS (PLUG-IN CONNECTORS)

YRA002 alternating relay for 2 pumps: 2 s delay between pumps against water hammer, DIN rail and plug-in connectors. 10 A outputs.

Features

• ✓Each demand starts the next pump: both share the running hours
• ✓Simultaneous input: when demand rises, both pumps run
• ✓About 2 s delay on starting or stopping the second pump: prevents water hammer
• ✓Optocoupled inputs, 3.5 kV isolation
• ✓Multi-voltage with transformer: 24, 48, 110, 230 or 380 VAC and 12 or 24 VDC
• ✓Supply and output status LEDs
• ✓Plug-in connectors: wired in the workshop and replaced on site

Documentation

How it works

1. 1When the alternation input ALT (3-11) closes, outputs O1 (7-10) and O2 (8-10) are activated alternately.
2. 2If the simultaneous input SIM (2-11) closes, both outputs stay on together.
3. 3When SIM opens again, the output that has been closed the longest switches off.
4. 4The second pump starts or stops with a delay of about 2 s, even if both commands arrive together.

You may also be interested in

Frequently asked questions