The Omron H3Y-4 AC100-120 1S is a socketable electromechanical time delay relay with 4PDT (4 Form C) contacts, rated 3A at 250VAC. It operates on a 100–120 VAC supply and offers both off-delay and on-delay functions, adjustable via a hand dial over a 0.1 to 1 second range.

Omron H3Y-4 AC100-120 1S Time Delay Relay, 4PDT, 0.1–1 Sec
MPNH3Y-4 AC100-120 1S
Active
Omron H3Y-4 series, time delay relay, 4PDT (4 Form C), 0.1 Sec ~ 1 Sec delay, 3A @ 250VAC, 100 ~ 120VAC supply, socketable plug-in, hand-dial adjustment.
$139.54 – $185.27Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Series | H3Y |
| Parameter | Value |
|---|---|
| Function | Off-Delay, On-Delay |
| Parameter | Value |
|---|---|
| Delay time range | 0.1 Sec ~ 1 Sec |
| Timing adjustment method | Hand Dial |
| Timing initiate method | Input Voltage |
| Parameter | Value |
|---|---|
| Supply voltage | 100 ~ 120VAC |
| Parameter | Value |
|---|---|
| Contact rating @ voltage | 3A @ 250VAC |
| Contact circuit (Form) | 4PDT (4 Form C) |
| Relay type | Mechanical Relay |
| Parameter | Value |
|---|---|
| Mounting type | Socketable |
| Termination style | Plug In |
Product details
Frequently asked questions
What is the contact rating and supply voltage for this relay?
Contacts are rated 3A at 250VAC; the coil supply is 100–120 VAC.
Where can I buy the H3Y-4 AC100-120 1S?
This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.
MPN
H3Y-4 AC100-120 1S