> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Solid State Relay - 40A (3-32V DC Input)

**Type:** Product page · **SKU:** COM-13015 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/solid-state-relay-40a-3-32v-dc-input.html ([markdown](https://core-electronics.com.au/solid-state-relay-40a-3-32v-dc-input.html.md))

A solid-state relay (SSR) allows you to control high-current AC loads from lower-voltage DC control circuitry.

> ⚠ Warning: this product if used with high voltages (such as 240VAC) requires a license to work with in most regions.

## Pricing

- **Price:** $29.40 (inc GST) — $26.73 AUD, exc GST
- **Quantity discounts:** 5+ $25.93 (exc GST) · 25+ $25.39 (exc GST) · 100+ $24.32 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 10 today, and up to 200 more in 5–11 days.

## How to buy

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- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

A solid state relay (SSR) allows you to control high-curent AC loads from lower voltage DC control circuitry. Solid state relays have several advantages over mechanical relays. One such advantage is that they can be switched by a much lower voltage and at a much lower current than most mechanical relays. Also, because there are no moving contacts, solid state relays can be switched much faster and for much longer periods without wearing out.

This particular SSR can switch AC current loads of up to 40A with a 3-32V DC input. Each one of these relays is equipped with four screw terminals (for use with ring or fork connectors) and a plastic cover that slides over the top of the relay to protect the terminals.

**Note:** This relay requires an AC load. If you need to switch a DC load, [try a Relay designed for DC loads.](https://core-electronics.com.au/5v-single-channel-relay-module-10a.html)

## Features:

- Trigger Current: 7.5mA/12V
- Control Voltage: 24-380V AC
- Input Voltage: 3-32V DC
- For AC Load
 
## Documents:

- [Datasheet](https://core-electronics.com.au/attachments/localcontent/SSR40DA_166369fbeb4.pdf)
- [Product Video](https://www.sparkfun.com/videos#all/mmgrxLLx89U/254)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/s/o/solid_state_relay_-_40a__3-32v_dc_input___com-13015__01.jpg)