Output and supply — the two specs that decide fit
The Omron E5CC-RW2DUM-600 is a process / temperature controller with two auxiliary relay outputs, powered by 24 VAC/DC. That 24 VAC/DC supply rail is common in control panels where a separate control transformer feeds the PLC and operator interface — it means you do not need a dedicated 100-240 VAC feed for this controller. The two auxiliary relays (SPDT each) handle on/off or alarm outputs directly, up to the contact rating of the relay base. The 11-pin relay socket mates with standard octal-style bases, so panel wiring follows a familiar footprint.
Active production — no end-of-life risk
It ships in bulk packaging, which suits medium-to-high volume builds or panel shops that prefer to keep their own reel or tube inventory.