Plug-in form, 11-pin socket, hand-dial timing
The Omron H3YN-41 DC12 sits in the H3YN series multi-function timer slot — a socketable, plug-in unit that drops into the standard 11-pin octal-style panel socket for fast field swap or retrofit on existing control cabinets. Timing is hand-dial adjustable across a 0.1 min to 10 hr span, with voltage-initiated start and a multi-function mode set — covering ON-delay, interval, flicker, and one-shot patterns from a single device. The output side is a mechanical relay in a 4PDT (4 Form C) arrangement, so the timer drives four independent switch legs rather than a single DPDT — useful where the sequence needs to release two loads and pick two others in the same timing cycle.
Coil, contact, and what they govern
The 12 VDC supply makes the H3YN-41 DC12 the variant to specify on 12 V control rails — the timing initiation and the relay coil both run off the same nominal rail. Contact rating is 3 A at 250 VAC, which sets the ceiling for any load switched through the four form-C legs; this is the figure that gates contactor coils, solenoid valves, and indicator lamps, not heater elements or motor starters.
Lifecycle and how it sources
Omron lists the H3YN-41 DC12 as Active and the product sits in a mature stage — long-running production with no official successor or EOL notice in the record.