--- product_id: 422566043 title: "CG Solid State Relay SSR-40DD DC to DC Input 3-32VDC To Output 5-240VDC 40A Single Phase Plastic Cover" brand: "cgele" price: "€ 56.11" currency: EUR in_stock: true reviews_count: 5 category: "Cgele" url: https://www.desertcart.pt/products/422566043-cg-solid-state-relay-ssr-40dd-dc-to-dc-input store_origin: PT region: Portugal --- # 40A high current capacity Silent, no-spark switching Thermal grease for faster heat dissipation CG Solid State Relay SSR-40DD DC to DC Input 3-32VDC To Output 5-240VDC 40A Single Phase Plastic Cover **Brand:** cgele **Price:** € 56.11 **Availability:** ✅ In Stock ## Summary > ⚡ Elevate your control game with silent, powerful switching! ## Quick Answers - **What is this?** CG Solid State Relay SSR-40DD DC to DC Input 3-32VDC To Output 5-240VDC 40A Single Phase Plastic Cover by cgele - **How much does it cost?** € 56.11 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/422566043-cg-solid-state-relay-ssr-40dd-dc-to-dc-input) ## Best For - cgele enthusiasts ## Why This Product - Trusted cgele brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Whisper-Quiet Switching:** Zero noise and zero spark operation keeps your workspace distraction-free. - • **Stay Cool Under Pressure:** Includes thermal grease to maximize heat dissipation and prolong relay life. - • **Plug & Play Automation Upgrade:** Easy screw terminal mounting with optical isolation for safe, seamless integration. - • **Power Through with 40A Current:** Handles heavy-duty loads effortlessly for your automation needs. - • **Built to Brave Harsh Environments:** Corrosion, moisture, and vibration resistant for reliable industrial-grade performance. ## Overview The CG Solid State Relay SSR-40DD is a robust single-phase DC-to-DC relay designed for high-current (40A) applications with input control voltage from 3-32VDC and output voltage up to 240VDC. Featuring silent, spark-free switching, optical isolation, and thermal grease for enhanced heat dissipation, it excels in harsh industrial environments requiring reliable, fast, and maintenance-free automation control. ## Description Features: Model:SSR-40DD Current:40A Input Control Voltage:3-32VDC Output Voltage:5-240VDC Frequency:50/60Hz Net Weight:116g Ambient Temperature:-20~+75℃ Single Phase Solid State Relay with LED indicator 1.Triac output, zero voltage open, zero off. 2.Optical isolation between input circuit and output circuit. 3.Inputs-between the output isolation voltage 2500V. Application: SSR series solid state relay with flame-retardant plastic housing, epoxy casting compound, wiring screw terminals with high structural strength,impact strength, vibration resistance, the input drive current small can be convenient and computer terminals and a variety of digital programmable circuit interface, widely used in automation and automation Control of petrochemical plants, food machines,packaging machines, textile machines, machine tools, plastic machines,fitness machines, entertainment possibilities. Especially suitable for corrosion, moisture, dust, and other harsh environments, and frequent switching the occasion, AC contactor is updated alternative. Review: No funciona como un relavador normal energizado o no este se mantiene activado Review: Im using one of these 40 amp SSRs to PWM a transmission cooler fan up under my jeep. Been installed for about a year now and so far no issues. If you use it to control a motor you have to run a fly back diode to keep from ruining the SSR. Thats what the 3 black rectangles with red a black wires running to them are. Gonna buy another one of these to pwm a windshield washer pump for water injection pre turbo (cheap turbo, dont care about the compressor wheel) ## Features - ♥【What You Get】Each package With 2 mini bag of thermal grease which apply on the back of the SSR to make the temperature dissipate faster. - ♥ Product Name: solid state module relay SSR-40DD, 3-32VDC/5-220VDC ; Current & Frequency:40A,50/60Hz. - ♥ Total size (approximate):58 x 45 x 32mm/2.3" x 1.8" x 1.26" (l*w*t); Net weight:116g; Material:metal, plastic, electronic parts. - ♥ SSR Application: with a switch no spark, no noise,high switching speed,anti-corrosion,moisture-proof,anti-vibration,long life.high reliability,electromagnetic compatibility and other characteristics. - ♥ Solid state relay ideal for automatic process control application, a must component for temperature controller and other machinery control system. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08GP5ZRTN | | ASIN | B08GP5ZRTN | | Batteries Included? | No | | Batteries Required? | No | | Customer Reviews | 4.0 4.0 out of 5 stars (379) | | Customer reviews | 4.0 4.0 out of 5 stars (379) | | Date First Available | 23 April 2021 | | Date First Available | 23 April 2021 | | Item Weight | 921 g | | Manufacturer | CGELE | | Manufacturer | CGELE | | Material | Copper | | Measurement System | Metric | | Package Dimensions | 24.99 x 20.7 x 10.39 cm; 921 g | | Package Dimensions | 24.99 x 20.7 x 10.39 cm; 921 g | | Plug Profile | Screw Mount | | Size | 40DD | | Wattage | 1440 watts | ## Product Details - **Brand:** CGELE - **Connector type:** Screw - **Contact type:** Normally Open - **Current rating:** 40 Amps - **Mounting type:** Screw Mount ## Images ![CG Solid State Relay SSR-40DD DC to DC Input 3-32VDC To Output 5-240VDC 40A Single Phase Plastic Cover - Image 1](https://m.media-amazon.com/images/I/71SzwbMWPKL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐ Review *by M***Z on 4 May 2023* No funciona como un relavador normal energizado o no este se mantiene activado ### ⭐⭐⭐⭐⭐ Review *by J***S on 25 September 2025* Im using one of these 40 amp SSRs to PWM a transmission cooler fan up under my jeep. Been installed for about a year now and so far no issues. If you use it to control a motor you have to run a fly back diode to keep from ruining the SSR. Thats what the 3 black rectangles with red a black wires running to them are. Gonna buy another one of these to pwm a windshield washer pump for water injection pre turbo (cheap turbo, dont care about the compressor wheel) ### ⭐⭐⭐⭐⭐ Review *by N***. on 24 October 2025* Great contactless and silent relay, this will last forever if its well configured and silicone paste applied for heath transfer ## Frequently Bought Together - CG Solid State Relay SSR-40DD DC to DC Input 3-32VDC To Output 5-240VDC 40A Single Phase Plastic Cover… - Southco R4-EM-11-161 Electronic Rotary Push-to-Close Latch, Auto Relock, with Latch Status Microswitch, Non-Sealed Connector, 1/4-20 Thread, Steel Housing, Zinc Plate, Bright Chromate - 9V Battery Connector,10 PCS T-Type 9 Volt Buckle Connector Hard Plastic Shell Used in Student Experiment,or Other Equipment with Battery --- ## 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.pt/products/422566043-cg-solid-state-relay-ssr-40dd-dc-to-dc-input](https://www.desertcart.pt/products/422566043-cg-solid-state-relay-ssr-40dd-dc-to-dc-input) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-23*