Omron
Omron 1 Channel 5V Solid State Relay
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Compact 5V DC control module for switching small AC loads. This single-channel PCB SSR module is built around an Omron G3MB-202P solid-state relay, giving you a logic-level 5V input and a 100–240VAC output path rated up to 2A.
Why this over a mechanical relay?
- No moving contacts: the phototriac SSR switches silently and avoids contact wear when used within its rating.
- Zero-cross AC switching: the G3MB-202P family is built for clean on/off control of small AC loads.
- Simple wiring: screw terminals on the module handle the AC side, with low-voltage control pins for your controller circuit.
Specifications
- Relay marking: Omron G3MB-202P
- Control input: 5V DC nominal; Omron 5V G3MB versions operate over 4–6VDC
- Output load: 100–240VAC, 50/60Hz, 0.1–2A general-purpose AC load
- Switching type: zero-cross solid-state relay with input resistor and snubber in the G3MB-202P relay family
- Module style: one-channel PCB module with screw terminals and mounting holes
Use in printer and controller builds
Use this when a 5V control signal needs to switch a small AC accessory within the relay rating. For clean wiring around the module, pair it with Wago 221-415 lever connectors or heat-resistant 26AWG stranded FEP wire on the low-voltage side.
Gotchas
- AC output only: this triac SSR is not for DC load switching.
- Respect the 2A limit: do not use it for beds, chamber heaters, or any load above the Omron rating.
- Mains safety applies: enclosure, strain relief, insulation, fusing, and local electrical rules are on the build.
Shipping & Returns
Returns:
Thank you for purchasing from dfh.fm. I want you to be completely satisfied with your purchase. If for any reason you are not satisfied, you may return your purchase within 60 days of the original purchase date.
Defective items: Please inspect items upon receipt. If you receive a defective item, you may return it for a full refund or replacement within 90 days of the original purchase date. Please contact me to initiate a return for a defective item.
Non-defective items: If you are not satisfied with a non-defective item, you may return it for a refund within 30 days of the original purchase date. A 20% restocking fee will be deducted from the refund amount, to offset the time and inconvenience, as I am the sole employee processing the return and restocking the item. The fee also covers the costs associated with processing the return. Refunds for non-defective items will be issued through the original payment method.
Preordered items: Due to the nature of preorders, delivery dates are subject to change. Please keep in mind that, If you have preordered an item, it is not eligible for a refund until after it has arrived at the store. Once the item arrives at the store and is inspected, you may request a refund within 30 days of the original purchase date. Please note that refunds for preordered items may take up to 10 days to be issued.
To initiate a return, please open a ticket on the shop’s discord channel, with your order number and the reason for the return. We will provide you with further instructions on how to return your purchase.
Thank you for shopping with us. If you have any questions or concerns, please don't hesitate to contact me, via Discord.
Order alterations and cancellations:
Once an order has ben submitted, no alterations can be made. This includes adding or removing items or canceling orders. You are welcome to return an order, once you have taken receipt, following the returns procedure listed above.
Shipping:
US Shipping is via UPS or USPS. The way it is set up shows the least expensive options for standard, priority and express shipping. I can not take special requests for specific carriers at this time.
International shipping is mostly UPS, as I utilize Zonos/UPS integration to tally extremely accurate import and shipping costs.
I require a telephone and email with international orders and you must make yourself available to the carrier or your customs, should they require more information. If you are unreachable and the package is discarded or rerturned, I will not be responsible for rerturning your shipping cost.
If there is a problem with an international order, it is my choice to refund part or all of the order, or send a replacement.
Addresses are verified through Shopify, but the customer is still responsible for inputting their address in the correct format. Any returns or lost shipments, due to incorrectly addressed packages, are the responsibility of the customer.
