The wholesale price of the Fofek SSR-40DA 3-32VDC to 24-380VAC relay depends on the order quantity, but bulk buyers can get up to 30% off compared to retail rates. Larger quantities always get better pricing because packaging, shipping, and handling costs reduce per unit. If you're planning a bulk project or stocking up for resale, the wholesale option gives you the best overall value.

The minimum order quantity (MOQ) for bulk relay module is 100 units. This MOQ helps us provide stable pricing, ensure quality testing for every batch, and offer faster dispatch times. If you need more than 100 units, we can also prepare custom pricing and lead times depending on your project requirements.

Yes, GST invoices are provided for all orders. Whether you're a retailer, institute, startup, or company, you will receive a proper GST bill that you can use for input tax credit and accounting purposes. Just provide your GST details during checkout or share them with the sales team.

Yes, the SSR-40DA Solid State Relay is compatible with both Arduino and Raspberry Pi. Its input voltage range of 3–32V DC allows direct control from Arduino’s 5V logic or Raspberry Pi’s 3.3V GPIO pins. This enables reliable switching of high-current AC loads up to 380V, making it ideal for industrial, automation, and embedded applications.

When integrating, ensure proper load ratings, heat dissipation, and wiring safety. The zero-cross trigger feature ensures smooth, low-noise switching, while the screw terminals provide secure and easy connections for AC devices.

We offer warranty only on branded products, and the coverage is based on the manufacturer’s policy. Generic modules do not usually come with warranty, but branded relays are covered as per their official guidelines. If you're ordering large quantities and want warranty-backed modules, just let us know and we will recommend the best options.