---
product_id: 47917996
title: "Heschen Single Phase DC/DC Solid State Relay, SSR-40DD, Input 4-32VDC, Output 24-220VDC, 40A 50-60Hz"
brand: "heschen"
price: "E£ 2816"
currency: EGP
in_stock: true
reviews_count: 13
category: "Heschen"
url: https://www.desertcart.com.eg/products/47917996-heschen-single-phase-dc-dc-solid-state-relay-ssr-40dd
store_origin: EG
region: Egypt
---

# 40A high load current Wide input control voltage 4-32VDC Output voltage range 24-220VDC Heschen Single Phase DC/DC Solid State Relay, SSR-40DD, Input 4-32VDC, Output 24-220VDC, 40A 50-60Hz

**Brand:** heschen
**Price:** E£ 2816
**Availability:** ✅ In Stock

## Summary

> ⚡ Switch to the future of power control with solid state precision!

## Quick Answers

- **What is this?** Heschen Single Phase DC/DC Solid State Relay, SSR-40DD, Input 4-32VDC, Output 24-220VDC, 40A 50-60Hz by heschen
- **How much does it cost?** E£ 2816 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/47917996-heschen-single-phase-dc-dc-solid-state-relay-ssr-40dd)

## 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

- • **Certified Quality:** CE and ISO9001 certified for trusted industrial-grade reliability
- • **Durable & Reliable:** Solid state design ensures silent, maintenance-free switching
- • **Powerhouse Performance:** Handles up to 40A load current for demanding applications
- • **Versatile Output Range:** Supports 24-220VDC output, perfect for diverse DC systems
- • **Flexible Voltage Control:** Operates seamlessly with 4-32VDC input control voltage

## Overview

The Heschen SSR-40DD is a robust single-phase DC/DC solid state relay designed for high-current switching up to 40A and output voltages between 24-220VDC. With a flexible input control voltage range of 4-32VDC, it offers silent, maintenance-free operation backed by CE and ISO9001 certifications, making it ideal for professional industrial and electric vehicle applications.

## Description

Heschen Single Phase DC/DC Solid State Relay, SSR-40DD, Input 4-32VDC, Output 24-220VDC, 40A 50-60Hz : desertcart.co.uk: Business, Industry & Science

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 effective switching capability. - Needed a relay to handle 130vdc switching for my electric car conversion triggered from 12vdc supply, this works brilliantly. So far working really well, am considering replacing other high load mechanical relays with similar SSR’s, will update later when used for a while to give overall feedback.

## Features

- Load current: 40A
- Load Voltage: 24-220VDC
- Control Voltage: 4-32VDC
- LED working instructions
- CE ISO9001 listed

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0716RTYMD |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 66,797 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 43 in Solid State Relays |
| Colour | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (511) |
| Date First Available | 10 May 2017 |
| Item Package Quantity | 1 |
| Item Weight | 100 g |
| Item model number | SSR-40DD |
| Manufacturer | Shanghai Kunerjing Current Rectifier Co.Ltd |
| Measurement System | Wire Size |
| Part number | GJX40DD |
| Plug profile | Screw Mount |
| Product Dimensions | 5.79 x 4.47 x 3.23 cm; 100 g |
| Size | SSR-40DD DC/DC |
| Specification met | CE |
| Style | SSR-40DD DC/DC |
| Wattage | 8800 watts |

## Product Details

- **Connector type:** Screw
- **Contact material:** Copper
- **Contact type:** Normally Open
- **Current rating:** 40 Amps
- **Mounting type:** Screw Mount

## Images

![Heschen Single Phase DC/DC Solid State Relay, SSR-40DD, Input 4-32VDC, Output 24-220VDC, 40A 50-60Hz - Image 1](https://m.media-amazon.com/images/I/71qsnjJSbWL.jpg)
![Heschen Single Phase DC/DC Solid State Relay, SSR-40DD, Input 4-32VDC, Output 24-220VDC, 40A 50-60Hz - Image 2](https://m.media-amazon.com/images/I/71ItcJhpyBL.jpg)
![Heschen Single Phase DC/DC Solid State Relay, SSR-40DD, Input 4-32VDC, Output 24-220VDC, 40A 50-60Hz - Image 3](https://m.media-amazon.com/images/I/71FPzFfQP+L.jpg)
![Heschen Single Phase DC/DC Solid State Relay, SSR-40DD, Input 4-32VDC, Output 24-220VDC, 40A 50-60Hz - Image 4](https://m.media-amazon.com/images/I/71f5RX1WccL.jpg)
![Heschen Single Phase DC/DC Solid State Relay, SSR-40DD, Input 4-32VDC, Output 24-220VDC, 40A 50-60Hz - Image 5](https://m.media-amazon.com/images/I/71il+gGvjWL.jpg)

## 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 effective switching capability.
*by S***M on 11 November 2019*

Needed a relay to handle 130vdc switching for my electric car conversion triggered from 12vdc supply, this works brilliantly. So far working really well, am considering replacing other high load mechanical relays with similar SSR’s, will update later when used for a while to give overall feedback.

### ⭐ POOR QUALITY!!!... LOOK FOR ALTERNATIVE.
*by N***Z on 1 September 2020*

I would seriously think twice about buying this cheap SSR, I had this installed in my 3d printer thinking it was working fine drove me mad trying to diagnose problem figured out eventually SSR was faulty and not doing its job although indicator light lit up making me think it was working fine, I'm pretty sure people who are rating this as a 4/5 star don't even know this is not working as the job for this SSR is to protect your rig from shorting, I think what this SSR does is allow current to run through but somewhere its not protecting the way it should and sends off all sorts of errors in some cases I can't put my finger on it as I'm not an engineer in this field, I basically ending up buying a premium SSR which worked straight away and got rid of all my headaches, I would look for a better alternative or if you can spend a bit more get a reliable/quality product.

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*Product available on Desertcart Egypt*
*Store origin: EG*
*Last updated: 2026-03-11*