---
product_id: 494232931
title: "Solid State Relay SSR-40 DA 40A Input 3-32V DC Output 24-380V AC with Heat Sink for Thermostat Temperature Controller"
brand: "coliao"
price: "₨15265"
currency: LKR
in_stock: true
reviews_count: 3
category: "Coliao"
url: https://www.desertcart.lk/products/494232931-solid-state-relay-ssr-40-da-40a-input-3-32v
store_origin: LK
region: Sri Lanka
---

# 40A high current capacity Wide 24-380V AC output range Includes heat sink for thermal management Solid State Relay SSR-40 DA 40A Input 3-32V DC Output 24-380V AC with Heat Sink for Thermostat Temperature Controller

**Brand:** coliao
**Price:** ₨15265
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your control game with silent, powerful switching!

## Quick Answers

- **What is this?** Solid State Relay SSR-40 DA 40A Input 3-32V DC Output 24-380V AC with Heat Sink for Thermostat Temperature Controller by coliao
- **How much does it cost?** ₨15265 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/494232931-solid-state-relay-ssr-40-da-40a-input-3-32v)

## Best For

- coliao enthusiasts

## Why This Product

- Trusted coliao brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Corrosion, moisture, and dust resistant for harsh industrial settings
- • **Powerhouse Performance:** Handles up to 40A current for robust industrial control
- • **Wide Voltage Compatibility:** Supports 3-32V DC input and 24-380V AC output for versatile applications
- • **Ready for Precision Control:** Ideal for PID thermostat and automated temperature systems
- • **Silent & Spark-Free Switching:** No noise or electric sparks, perfect for sensitive environments

## Overview

The SSR-40DA Solid State Relay by Coliao delivers reliable, high-speed DC to AC switching with a 40A current rating and a broad 24-380V AC output range. Designed for industrial-grade temperature controllers and automation systems, it features a compact form factor with an included heat sink for efficient thermal management. Its spark-free, silent operation and resistance to harsh environments make it a must-have for professionals seeking durable and precise control solutions.

## Description

SSR-40DA solid state relay is ideal for automatic process control application, a must component for temperature controller and other machinery control system. High reliability, high efficiency and long lifespan, a great part for temperature controller and other machinery control system. Specification: Model: SSR-40 DA Solid State Relay Module Input Voltage:3-32V DC Output Voltage:24-380V AC Output Current:60A Control Method: DC to AC Mounting Method: Bolts fixed On Voltage:<1V One-off time:<10ms Off Leakage current:<2mA Relay Size:63x 44 x 24mm / 2.48 x 1.73 x 0.94" (L*W*H);Heat Sink Size: 8 x 4.9 x 4.9cm/ 3.1 x 1.9 x 1.9" (L*W*H) Package included: 1 * SSR-40DA 40A 250V Solid State Relay+1* Heat Sink

Review: It doesn't include screws or thermal paste.
Review: Works great to trigger my power amps from my stereo receiver

## Features

- 【Model】SSR-40DA 40A 250V Solid State Relay Module, for PID thermostat temperature controller
- 【SSR-40DA Parameter】Solid state module relay SSR-40DA, 3-32VDC/24-480VAC, control mode: DC to AC
- 【Relay Size】(L*W*H)63×44×24mm/2.48 x 1.73 x 0.94"
- 【SSR Application】No electric spark, no noise, high switching speed, especially suitable for corrosion, moisture, dust resistant and other harsh environments. Widely used in many automatic control systems
- 【Package Content】 1 x SSR-40 DA solid state relay module, 1 x heat sink

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09NR5KN8P |
| Best Sellers Rank | #265,898 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,627 in Temperature Controllers |
| Brand | Coliao |
| Brand Name | Coliao |
| Coil Voltage | 32 Volts (DC) |
| Connector Type | Screw |
| Contact Current Rating | 40 Amps |
| Contact Material | Silver |
| Contact Type | Normally Open |
| Current Rating | 40 Amps |
| Customer Reviews | 4.7 out of 5 stars 20 Reviews |
| Manufacturer | Coliao |
| Maximum Switching Current | 40 Amps |
| Mounting Type | Bolt Mount |
| Operation Mode | Automatic |
| UPC | 701715495739 |

## Product Details

- **Connector Type:** Screw
- **Contact Type:** Normally Open
- **Current Rating:** 40 Amps
- **Mounting Type:** Bolt Mount
- **Brand:** Coliao

## Images

![Solid State Relay SSR-40 DA 40A Input 3-32V DC Output 24-380V AC with Heat Sink for Thermostat Temperature Controller - Image 1](https://m.media-amazon.com/images/I/71KifVymWgL.jpg)

## Customer Reviews

### ⭐⭐⭐ It doesn't include screws or thermal paste.
*by C***T on 25 June 2025*



### ⭐⭐⭐⭐⭐ Works great to trigger my power amps from my stereo receiver
*by S***L on 19 February 2023*



### ⭐⭐⭐⭐⭐ Relay with heat sink.
*by L***. on 4 January 2024*



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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-26*