Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Omron
The Omron H3YN-21-DC24 is an analog socket-type timer from the H3YN-B product family featuring a 31 mm terminal type and plug-in operating mode. This multi-functional device operates on a supply voltage of 20.6-26.4 V and supports a time range of 0.1 min to 10 h with DPDT contact description and relay output type. Supported output modes include Flicker OFF Start (Power ON Start), Flicker ON Start (Power ON Start), Interval (Power ON Start), and ON Delay (Power ON Start). Submit the exact part number, quantity, and application requirements for a formal price quote.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Omron references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Omron H3YN-21-DC24. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.