--- product_id: 56453627 title: "Single Phase DC/AC Solid State Relay, SSR-40DA, Input 4-32VDC, Output 24-480VAC, 40A 50-60Hz" brand: "heschen" price: "8.45 OMR" currency: OMR in_stock: true reviews_count: 13 category: "Heschen" url: https://www.desertcart.com.om/products/56453627-single-phase-dc-ac-solid-state-relay-ssr-40da-input store_origin: OM region: Oman --- # 40A Load Current 4-32VDC Control 24-480VAC Output Single Phase DC/AC Solid State Relay, SSR-40DA, Input 4-32VDC, Output 24-480VAC, 40A 50-60Hz **Brand:** heschen **Price:** 8.45 OMR **Availability:** ✅ In Stock ## Summary > ⚙️ Unleash the Power of Precision Control! ## Quick Answers - **What is this?** Single Phase DC/AC Solid State Relay, SSR-40DA, Input 4-32VDC, Output 24-480VAC, 40A 50-60Hz by heschen - **How much does it cost?** 8.45 OMR with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/56453627-single-phase-dc-ac-solid-state-relay-ssr-40da-input) ## Best For - heschen enthusiasts ## Why This Product - Trusted heschen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Design:** Space-saving dimensions of 4.4 x 3.2 x 5.8 cm. - • **Certified Quality:** CE listed for guaranteed safety and reliability. - • **Powerful Performance:** Handles up to 40A for robust applications. - • **Versatile Voltage Range:** Compatible with 24-480VAC for diverse setups. - • **User-Friendly LED Indicators:** Stay informed with clear LED working instructions. ## Overview The Heschen SSR-40DA Solid State Relay is engineered for high-performance applications, supporting a load current of 40A and a wide output voltage range of 24-480VAC. With a control voltage of 4-32VDC and user-friendly LED indicators, this compact relay ensures reliable operation in various environments. CE certified, it combines safety with efficiency, making it an essential component for modern electrical systems. ## Description Product Description Review: Works as advertised - Appears to work fine, the relay was activated with a voltage between 2.5-5v DC, though it's obviously rated much higher. Only used it to switch 220v at 3A AC, can't comment on higher currents but it seems well built and works as advertised Review: very fast delivery and good quality. - Amazed the quality and the price so mutch. Cant say China just only make things to quantity. ## Features - Load current: 40A, 50-60Hz - Load Voltage: 24-480VAC - Control Voltage: 4-32VDC - LED working instructions - CE ISO9001 listed ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071HP9NJD | | Best Sellers Rank | 33,171 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 11 in Solid State Relays | | Brand | Heschen | | Coil Voltage | 4 Volts (DC) | | Connector Type | Screw | | Connector type | Screw | | Contact Material | Copper | | Contact Type | Normally Closed | | Contact material | Copper | | Contact type | Normally Closed | | Country Of Origin | China | | Current Rating | 40 Amps | | Current rating | 40 Amps | | Customer Reviews | 4.2 out of 5 stars 418 Reviews | | Manufacturer | Shanghai Kunerjing Current Rectifier Co.Ltd | | Manufacturer Part Number | SSR-40DA | | Minimum Switching Voltage | 4 Volts (DC) | | Model Number | 40A SSR-40DA | | Mounting Type | Screw Mount | | Mounting type | Screw Mount | | Number of Terminals | 2 | | Operating Time | 0.01 Seconds | | Operation Mode | Automatic | | Specification Met | CE | | UPC | 670534168554 | | Wattage | 4800 watts | ## Product Details - **Connector type:** Screw - **Contact material:** Copper - **Contact type:** Normally Closed - **Current rating:** 40 Amps - **Mounting type:** Screw Mount ## Images ![Single Phase DC/AC Solid State Relay, SSR-40DA, Input 4-32VDC, Output 24-480VAC, 40A 50-60Hz - Image 1](https://m.media-amazon.com/images/I/71c5WTzNEIL.jpg) ![Single Phase DC/AC Solid State Relay, SSR-40DA, Input 4-32VDC, Output 24-480VAC, 40A 50-60Hz - Image 2](https://m.media-amazon.com/images/I/71flhjOHxgL.jpg) ![Single Phase DC/AC Solid State Relay, SSR-40DA, Input 4-32VDC, Output 24-480VAC, 40A 50-60Hz - Image 3](https://m.media-amazon.com/images/I/71uzphxA8gL.jpg) ![Single Phase DC/AC Solid State Relay, SSR-40DA, Input 4-32VDC, Output 24-480VAC, 40A 50-60Hz - Image 4](https://m.media-amazon.com/images/I/71Ar+7-adQL.jpg) ![Single Phase DC/AC Solid State Relay, SSR-40DA, Input 4-32VDC, Output 24-480VAC, 40A 50-60Hz - Image 5](https://m.media-amazon.com/images/I/71il+gGvjWL.jpg) ## Available Options This product comes in different **Size, Item Package Quantity** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works as advertised *by F***R on 12 August 2020* Appears to work fine, the relay was activated with a voltage between 2.5-5v DC, though it's obviously rated much higher. Only used it to switch 220v at 3A AC, can't comment on higher currents but it seems well built and works as advertised ### ⭐⭐⭐⭐⭐ very fast delivery and good quality. *by M***I on 12 October 2018* Amazed the quality and the price so mutch. Cant say China just only make things to quantity. ### ⭐⭐⭐⭐ Works great, but a bit big. *by P***L on 23 November 2019* Bit big but works as it should. ## Frequently Bought Together - Heschen Single Phase DC/AC Solid State Relay, SSR-40DA, Input 4-32VDC, Output 24-480VAC, 40A 50-60Hz (1) - PTC Air Heater Energy Saving Ceramic Heater Electric Thermostatic Insulated PTC Heater Temperature Heating Element Heaters with Fan 220V 300W for Heater Humidifier Air Conditioning Appliances --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.om/products/56453627-single-phase-dc-ac-solid-state-relay-ssr-40da-input](https://www.desertcart.com.om/products/56453627-single-phase-dc-ac-solid-state-relay-ssr-40da-input) --- *Product available on Desertcart Oman* *Store origin: OM* *Last updated: 2026-05-27*