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Omron H3YN-4-B DC24 mini timer in the shipping carton with the type label visible

Omron H3YN-4-B DC24 — Multi-Mode Timer, 4PDT, 0.1 s-10 min

SKU: H3YN-4-B DC24

USD 36.00

H3YN solid-state mini timer, 4 modes (ON-delay / interval / flicker), 4PDT, 0.1 s to 10 min, DC 24 V supply, MY-relay pinout.

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Product Overview

The Omron H3YN-4-B DC24 is a solid-state mini timer from the H3YN series, designed for panel- or socket-mount sequencing in industrial control cabinets. The "4" in the model number means 4PDT (four-pole double-throw) — four changeover contacts in one timer body — which is rare in this size class and lets you switch four independent loads from a single timing event. The "-B" suffix is the black housing variant; the standard ivory H3YN-4 DC24 has the same internals.

What "multi-mode" means in this timer

Unlike a single-function on-delay timer, the H3YN-4-B has a 4-position DIP switch on the front that selects the operating mode: ON-delay (output energises after the set time has elapsed), interval (output stays energised for the set time from a start input), flicker-OFF-start, and flicker-ON-start. Set the mode once at install and the timer behaves the same way for every cycle. The short-time range (the -4, no -1) covers 0.1 s to 10 min across four DIP-switched sub-ranges: 1 s, 10 s, 1 min, 10 min. For 0.1 min to 10 h timing, order the long-time H3YN-41-B instead.

Wiring and pinout

The H3YN-4-B uses the same 14-pin layout as the Omron MY-series power relay, which means it plugs into the same PYF14A (panel-mount) or PYFZ-14 (DIN-rail) socket as an MY4 relay. This lets you swap an MY4 power relay for an H3YN-4-B timer without rewiring the socket, which is a useful upgrade path on machines that previously used an MY relay as a crude pneumatic or process timer. Power and contact terminals are split between the top row (coil) and bottom row (contacts) of the socket.

Before ordering

Pick a PYF14A or PYFZ-14 socket — the timer body alone is not usable without one. Confirm the DC 24 V supply is on the right pin (positive on terminal 13, negative on 14, per the Omron datasheet). For a 2PDT version in the same body, look at the H3YN-2-B DC24V (uses the 8-pin PYF08A / PYCZ-C08 socket). For a slimmer DIN-rail-mounted timer with display, look at the H3DT series.

Key Features

  • H3YN series solid-state mini timer
  • Multi-mode: ON-delay, interval, flicker-OFF-start, flicker-ON-start (DIP switch)
  • 4PDT (4c) contact output — switch four loads at once
  • Short-time range 0.1 s - 10 min across 4 sub-ranges (1 s, 10 s, 1 min, 10 min)
  • Pinout matches MY-series power relay (14-pin socket)
  • Compatible sockets: PYF14A (panel) or PYFZ-14 (DIN-rail)
  • Black housing (the "-B" suffix)
  • Repeat accuracy ±1% of full-scale; reset time <=100 ms
  • SKU: H3YN-4-B DC24
  • Series: H3YN solid-state mini timer
  • Voltage: 24 V

Best-Fit Applications

  • Sequential start delay on a packaging machine where the MY4 socket already exists (drop-in upgrade)
  • Flicker / pulse-train generation on a lubrication cycle where the timer cycles on and off
  • Four-channel load sequencing on a control panel where each timing event drives multiple relays
  • Spare-slot replacement for an MY4 power relay that needs real timing instead of a pneumatic RC delay
  • Machine build-up timer for OEM cabinets where the panel socket is the MY-relay type

Buying Checklist

  • Choose H3YN-4-B DC24 for a 4PDT multi-mode timer that fits an existing MY-relay socket; pick H3YN-2-B DC24V if you only need 2PDT.
  • Pick the long-time H3YN-41-B DC24 instead if your timing range is 0.1 min to 10 h rather than 0.1 s to 10 min.
  • Order a PYF14A (panel-mount) or PYFZ-14 (DIN-rail) socket — the timer body is not usable without one.
  • Use the multi-mode switch to pick ON-delay, interval, or flicker at install time — the timer is not a fixed on-delay only.
  • Consider the slim DIN-rail-mount H3DT series if the cabinet front panel is full and you need a snap-on 17.5 mm-wide timer.

Technical Specifications

Model H3YN-4-B DC24
Series H3YN solid-state mini timer
Operating Modes Multi-mode (4): ON-delay, interval, flicker-OFF-start, flicker-ON-start (DIP-switched)
Contact Configuration 4PDT (4c, four-pole double-throw)
Time Range (Short-Time) 0.1 s to 10 min (1 s / 10 s / 1 min / 10 min sub-ranges)
Repeat Accuracy ±1% of full-scale
Reset Time <=100 ms
Contact Rating AC 250 V / 3 A resistive load
Pinout / Socket MY-relay compatible 14-pin; PYF14A / PYFZ-14 sold separately
Supply Voltage (this SKU) DC 24 V (AC 100-120 / AC 200-230 / DC 12 / DC 48 / DC 100-110 / DC 125 V variants exist)
Operating Temperature -10 to +55 °C (no icing)
Approvals UL, CSA, EN 61812-1, CE, CCC

FAQ for H3YN-4-B DC24

Is the H3YN-4-B DC24 an on-delay timer only?
No. The H3YN-4-B is a multi-mode timer with four selectable modes on a front-panel DIP switch: ON-delay, interval, flicker-OFF-start, and flicker-ON-start. Pick the mode once at install time and the timer behaves that way for every cycle. Pick a single-function on-delay timer (such as H3DS-ML) if you only need ON-delay behaviour.
What is the difference between H3YN-4-B and H3YN-2-B?
H3YN-4-B has 4PDT (4c, four changeover contacts) and uses a 14-pin MY-relay-compatible socket. H3YN-2-B has 2PDT (2c) and uses an 8-pin socket. Both are multi-mode and otherwise electrically identical. Pick -4-B when you need four timed outputs from one event; pick -2-B when 2PDT is enough.
What time range does the H3YN-4-B cover?
Short-time version (the -4 / no -1 suffix): 0.1 s to 10 min across four DIP-switched sub-ranges — 1 s, 10 s, 1 min, 10 min. Long-time version (H3YN-41-B): 0.1 min to 10 h across 1 min, 10 min, 1 h, 10 h. The H3YN-4-B you have here is the short-time model.
Do I need a separate socket for the H3YN-4-B?
Yes. The H3YN-4-B plugs into a 14-pin OMROn PY-series socket — choose PYF14A for panel-mount or PYCZ-C14-protected PYFZ-14 for DIN-rail. The socket is sold separately. Pinout matches the Omron MY4 power relay, so an existing MY4 socket on your panel is a direct drop-in replacement candidate.

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