---
product_id: 74285858
title: "Functional Devices RIB01BDC Dry Contact Relay, 20 Amp SPDT, Class 2 Dry Contact Input, 120 Vac Power Input, NEMA 1 Housing"
brand: "rib"
price: "฿5139"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/74285858-functional-devices-rib01bdc-dry-contact-relay-20-amp-spdt-class
store_origin: TH
region: Thailand
---

# 20A Power NEMA 1 Housing 120V Input Functional Devices RIB01BDC Dry Contact Relay, 20 Amp SPDT, Class 2 Dry Contact Input, 120 Vac Power Input, NEMA 1 Housing

**Brand:** rib
**Price:** ฿5139
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect with Confidence!

## Quick Answers

- **What is this?** Functional Devices RIB01BDC Dry Contact Relay, 20 Amp SPDT, Class 2 Dry Contact Input, 120 Vac Power Input, NEMA 1 Housing by rib
- **How much does it cost?** ฿5139 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/74285858-functional-devices-rib01bdc-dry-contact-relay-20-amp-spdt-class)

## Best For

- rib enthusiasts

## Why This Product

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

## Key Features

- • **Durable Design:** Housed in robust NEMA 1 enclosure.
- • **Easy Integration:** Perfect for various applications in automation.
- • **Powerful Performance:** Handles up to 20 amps effortlessly.
- • **Reliable Power Input:** Operates seamlessly on 120 Vac.
- • **Versatile Compatibility:** Designed for Class 2 dry contact inputs.

## Overview

The Functional Devices RIB01BDC Dry Contact Relay is a robust solution for your automation needs, featuring a 20 amp SPDT configuration, Class 2 dry contact input, and a reliable 120 Vac power input, all housed in a durable NEMA 1 enclosure.

## Description

Functional Devices RIB01BDC enclosed relay, 20 amp SPDT, Class 2 dry contact input, 120 VAC power input. Made in United States. Manufactured by Functional Devices, Inc.

## Features

- 20 amp spdt
- Class 2 dry contact input
- 120 vac power input

## Product Details

- **Connector Type:** Dry Contact
- **Contact Type:** Spdt
- **Current Rating:** 20 Amps
- **Mounting Type:** Screw Mount
- **Brand:** RIB

## Images

![Functional Devices RIB01BDC Dry Contact Relay, 20 Amp SPDT, Class 2 Dry Contact Input, 120 Vac Power Input, NEMA 1 Housing - Image 1](https://m.media-amazon.com/images/I/61gW6IQ3S9L.jpg)

## Questions & Answers

**Q: How much noise does the relay make when it closes?  I'm looking for something basically silent.  Thanks**
A: That's hard to say. It's in a furnace room so it didn't matter to me. It is about the same sound as any small relay would make, a click, not a snap.
Mine is mounted to a knock out in a 4 square electrical box which holds it off the back surface a little bit, ii thinks this helps keep it quit.
I am using it with a thermostat on a hot domestic water circulating loop to cycle the pump, and the thermostat makes more noise.

**Q: Is this product the 2020 hardware revision that allows both delay-on-make and delay-on-break functions?**
A: I am not aware of any delay attributes. Specifications for the dry contact for example has no inherent delay function indicated.

**Q: Does it include any debounce circuity? I am going to use it with a flow switch and was wondering if it is needed.**
A: It does have a slight delay for open and closing. So I would say yes.

**Q: Can this be used to detect 120v input and complete a low voltage central vac circuit? Need to turn on the central vac when 120v is sensed at one inlet**
A: No, I cannot sense the voltage. It just connects or disconnects when the dry contacts are triggered.

## Frequently Bought Together

- Functional Devices RIB01BDC Dry Contact Relay, 20 Amp SPDT, Class 2 Dry Contact Input, 120 Vac Power Input, NEMA 1 Housing
- Functional Devices RIB2401B Power Relay, 20 Amp SPDT, 24 Vac/dc/120 Vac Coil, NEMA 1 Housing

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**Shop now:** [https://www.desertcart.co.th/products/74285858-functional-devices-rib01bdc-dry-contact-relay-20-amp-spdt-class](https://www.desertcart.co.th/products/74285858-functional-devices-rib01bdc-dry-contact-relay-20-amp-spdt-class)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-20*