---
product_id: 16736884
title: "120D25 DC Control Solid State Relay, 120 VAC, 25 Amp, 4000 V Optical Isolation, 1/2 Cycle Maximum Turn-On/Off Time, 25 - 65 Hz Operating Frequency"
brand: "opto 22"
price: "£72.83"
currency: GBP
in_stock: true
reviews_count: 6
url: https://www.desertcart.co.uk/products/16736884-120d25-dc-control-solid-state-relay-120-vac-25-amp
store_origin: GB
region: United Kingdom
---

# 120D25 DC Control Solid State Relay, 120 VAC, 25 Amp, 4000 V Optical Isolation, 1/2 Cycle Maximum Turn-On/Off Time, 25 - 65 Hz Operating Frequency

**Brand:** opto 22
**Price:** £72.83
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** 120D25 DC Control Solid State Relay, 120 VAC, 25 Amp, 4000 V Optical Isolation, 1/2 Cycle Maximum Turn-On/Off Time, 25 - 65 Hz Operating Frequency by opto 22
- **How much does it cost?** £72.83 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/16736884-120d25-dc-control-solid-state-relay-120-vac-25-amp)

## Best For

- opto 22 enthusiasts

## Why This Product

- Trusted opto 22 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

120D25 DC Control Solid State Relay, 120 VAC, 25 Amp, 4000 V Optical Isolation, 1/2 Cycle Maximum Turn-On/Off Time, 25 - 65 Hz Operating Frequency

## Features

- Solid state relay for fast response and high vibration resistance
- Panel mount for attaching to a conductive panel or heat sink
- Zero-voltage switching to reduce arcing and extend the life of the device
- Built-in snubber for preventing arcing across contacts
- UL Recognized for safety, CSA and CE certified for quality assurance

## Images

![120D25 DC Control Solid State Relay, 120 VAC, 25 Amp, 4000 V Optical Isolation, 1/2 Cycle Maximum Turn-On/Off Time, 25 - 65 Hz Operating Frequency - Image 1](https://m.media-amazon.com/images/I/61W-MmyUbWL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Quality Part
  

*by T***R on Reviewed in the United States on September 2, 2019*

When it comes to higher voltage, I recommend getting a quality part like this rather than a cheap import.I was using mine to control a solder reflow toaster oven.Don't forget a flyback diode!

### ⭐⭐ 







  
  
    Confusing description.
  

*by R***N on Reviewed in the United States on September 7, 2017*

The 120VAC in the description is easy to confuse as control voltage which is not true. This is a DC voltage controlled relay.

### ⭐⭐⭐⭐⭐ 







  
  
    Five Stars
  

*by B***2 on Reviewed in the United States on March 11, 2016*

works great!

---

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**Shop now:** [https://www.desertcart.co.uk/products/16736884-120d25-dc-control-solid-state-relay-120-vac-25-amp](https://www.desertcart.co.uk/products/16736884-120d25-dc-control-solid-state-relay-120-vac-25-amp)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-20*