What the relay contact output means for your loop
The PXF9ABY2-0VYA1: A relay contact output on a temperature controller means it switches the load directly — typically a heater contactor, solenoid valve, or alarm indicator — without needing an external solid-state relay for lower-power loads. The relay is mechanically isolated, so it handles AC or DC loads within its rated contact capacity, but it wears with cycle count; for frequent cycling (e.g., PID-controlled heating), consider a SSR-output variant instead.