---
product_id: 469985928
title: "24VAC, 40 VA AC Transformer Plug in with PTC Fuse Compatible with Ring Nest Doorbell Thermostats UL Certified"
brand: "hotop"
price: "€ 16.95"
currency: EUR
in_stock: false
reviews_count: 5
url: https://www.desertcart.sk/products/469985928-24vac-40-va-ac-transformer-plug-in-with-ptc-fuse
store_origin: SK
region: Slovakia
---

# 24VAC, 40 VA AC Transformer Plug in with PTC Fuse Compatible with Ring Nest Doorbell Thermostats UL Certified

**Brand:** hotop
**Price:** € 16.95
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** 24VAC, 40 VA AC Transformer Plug in with PTC Fuse Compatible with Ring Nest Doorbell Thermostats UL Certified by hotop
- **How much does it cost?** € 16.95 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/469985928-24vac-40-va-ac-transformer-plug-in-with-ptc-fuse)

## Best For

- hotop enthusiasts

## Why This Product

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

## Description

24VAC, 40 VA AC Transformer Plug in with PTC Fuse Compatible with Ring Nest Doorbell Thermostats UL Certified : desertcart.in: Home Improvement

Review: No funcionó - No funcionó para el timbre ring que sugiere es compatible y al probarlo no paso corriente 0 perdí tiempo sugiero que mejor ofrezcan el original de parte de la compañía ring quien es el fabricante
Review: Works as indicated, used for a Ring Doorbell Pro - Works fine with the Ring Doorbell Pro, keep in mind you need to attach the Ring DoorBell Pro PowerPAK unit to the same pins as the power wires just as if this was a standard doorbell transformer. It comes with a three pin out but just used the far Left and far Right pins for the Ring DoorBell Pro wires.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B083R621RV |
| Best Sellers Rank | #208,502 in Home Improvement ( See Top 100 in Home Improvement ) #19 in Door Bell Transformers |
| Brand | Hotop |
| Brand Name | Hotop |
| Customer Reviews | 4.5 out of 5 stars 2,113 Reviews |
| Manufacturer | s |
| Minimum Frequency | 50 Hz |
| Model Number | PS D40 |
| Mounting Type | Wall Mount |
| Part Number | PS D40 |
| Power Source | Corded Electric |
| Power Source Type | Corded Electric |
| Specification Met | UL |
| UPC | 796168988969 |

## Product Details

- **Brand:** Hotop
- **Power Source:** Corded Electric
- **Mounting Type:** Wall Mount
- **Specification Met:** UL
- **UPC:** 796168988969

## Images

![24VAC, 40 VA AC Transformer Plug in with PTC Fuse Compatible with Ring Nest Doorbell Thermostats UL Certified - Image 1](https://m.media-amazon.com/images/I/61YFD+Gn2UL.jpg)
![24VAC, 40 VA AC Transformer Plug in with PTC Fuse Compatible with Ring Nest Doorbell Thermostats UL Certified - Image 2](https://m.media-amazon.com/images/I/71nn4BLpAlL.jpg)
![24VAC, 40 VA AC Transformer Plug in with PTC Fuse Compatible with Ring Nest Doorbell Thermostats UL Certified - Image 3](https://m.media-amazon.com/images/I/71Oa38-NRyL.jpg)
![24VAC, 40 VA AC Transformer Plug in with PTC Fuse Compatible with Ring Nest Doorbell Thermostats UL Certified - Image 4](https://m.media-amazon.com/images/I/71l1IxvoDxL.jpg)
![24VAC, 40 VA AC Transformer Plug in with PTC Fuse Compatible with Ring Nest Doorbell Thermostats UL Certified - Image 5](https://m.media-amazon.com/images/I/618JeLByeKL.jpg)

## Customer Reviews

### ⭐ No funcionó
*by N***0 on 4 October 2024*

No funcionó para el timbre ring que sugiere es compatible y al probarlo no paso corriente 0 perdí tiempo sugiero que mejor ofrezcan el original de parte de la compañía ring quien es el fabricante

### ⭐⭐⭐⭐⭐ Works as indicated, used for a Ring Doorbell Pro
*by J***4 on 30 November 2020*

Works fine with the Ring Doorbell Pro, keep in mind you need to attach the Ring DoorBell Pro PowerPAK unit to the same pins as the power wires just as if this was a standard doorbell transformer. It comes with a three pin out but just used the far Left and far Right pins for the Ring DoorBell Pro wires.

### ⭐⭐⭐⭐⭐ Very good quality and has been in service a long time
*by M***E on 22 August 2026*

Works great. Using to power thermostats on older HVAC equipment that does not have the “C” Blue wire.

## Frequently Bought Together

- Hotop 1 Pack 24 Volt Transformer, 40 VA AC Transformer Plug in with PTC Fuse Competible with All Versions of Ring Doorbell and Thermostat, Compatible with Nest, Ecobee, Sensi, Honeywell, 24V Adapter
- Syston 18/2 Thermostat Doorbell HVAC Heating Control Cable Wire, 18 AWG 2 Conductors 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated, UV Resistant RoHS for Low Voltage Applications Use
- Syston 18/4 Thermostat Doorbell HVAC Heating Control Cable Wire, 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated UL/ETL Listed, UV Resistant RoHS for Indoor/Outdoor Low Voltage Applications Use

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**Shop now:** [https://www.desertcart.sk/products/469985928-24vac-40-va-ac-transformer-plug-in-with-ptc-fuse](https://www.desertcart.sk/products/469985928-24vac-40-va-ac-transformer-plug-in-with-ptc-fuse)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-09-05*