---
product_id: 24113834
title: "White Rodgers 90-340 2 & 3 Pole Relay"
brand: "emerson"
price: "$19.90"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/24113834-white-rodgers-90-340-2-and-3-pole-relay
store_origin: US
region: United States of America
---

# 30 Amps current rating Compact 4x4x2 inch dimensions DPDT switch type for versatile control White Rodgers 90-340 2 & 3 Pole Relay

**Brand:** emerson
**Price:** $19.90
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your HVAC game with precision and power!

## Quick Answers

- **What is this?** White Rodgers 90-340 2 & 3 Pole Relay by emerson
- **How much does it cost?** $19.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/24113834-white-rodgers-90-340-2-and-3-pole-relay)

## Best For

- emerson enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Universal:** Fits effortlessly with universal mounting in tight spaces
- • **Dual-Pole Precision:** DPDT switch type ensures seamless switching and motor starting
- • **Versatile Application:** Perfect for air conditioning, heating, and power supply control
- • **Trusted Brand Assurance:** Emerson’s White Rodgers quality with UL certification
- • **Power-Packed Performance:** Handles up to 30 Amps for reliable HVAC control

## Overview

The White Rodgers 90-340 2 & 3 Pole Relay by Emerson is a UL-certified, compact magnetic relay designed for HVAC systems. Featuring a DPDT switch type and a robust 30 Amp current rating, it ensures reliable control for air conditioning, heating, and motor starting applications. Its universal mounting and compact size make it an essential upgrade for professional-grade HVAC control.

## Description

Magnetic Relay, Type AC Switching, Coil Volts 24, Switch Type DPDT, HP 1/2, Full Load Amps at 120V 12, Locked Rotor Amps at 120V 60, Full Load Amps at 240VAC 6, Locked Rotor Amps at 240V 35, Resistive Amps at 277V 15, Full Load Amps at 277V 6, Height (In. ) 2-1/4, Width (In. ) 2-1/8, Depth (In. ) 1-7/8, Mounting Universal, Application Air Conditioning, Heating/Ventilating Control System, Motor Starting, Heating Element Operation and Power Supply Control, Agency Compliance UL

## Features

- 2 &3 Pole Relay
- Brand name: Emerson Thermostats
- Model number: 90-340
- Country of Origin: China

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Connector Type | Screw |
| Contact Material | Brass |
| Contact Type | Dpdt |
| Current Rating | 30 Amps |
| Mounting Type | Pole |
| Brand | Emerson |
| Operation Mode | Automatic |
| Wattage | 7.2E+2 |
| Minimum Switching Voltage | 24 Volts (DC) |
| Number of Terminals | 3 |
| Specification Met | UL |
| UPC | 786710028120 786710070662 |
| Manufacturer | White Rodgers |
| Part Number | 90340 |
| Item Weight | 5.9 ounces |
| Product Dimensions | 4 x 4 x 2 inches |
| Item model number | 90-340 |
| Is Discontinued By Manufacturer | No |
| Size | No Size |
| Color | No Finish |
| Style | Relays |
| Material | Plastic |
| Voltage | 24 Volts |
| Item Package Quantity | 1 |
| Measurement System | Imperial |
| Included Components | White Rodgers 90-340 2 & 3 Pole Relay |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |

## Product Details

- **Connector Type:** Screw
- **Contact Material:** Brass
- **Contact Type:** Dpdt
- **Current Rating:** 30 Amps
- **Mounting Type:** Pole

## Images

![White Rodgers 90-340 2 & 3 Pole Relay - Image 1](https://m.media-amazon.com/images/I/713hR0mIb7L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Exact fit
*by M***L on June 19, 2022*

Works great, fits great, quality product

### ⭐⭐⭐⭐⭐ I keep on of these on hand for my furnace
*by B***Z on March 26, 2023*

Not sure why, but these seem to die annually on my furnace. It is an easy replacement, and the part is cheap enough. So I just keep one or two on hand for when I wake up and there is no heat flowing.Build quality and all on these are good. I suspect it is more of an issue w my furnace.

### ⭐⭐⭐⭐⭐ Great relay for my AC units
*by J***E on February 23, 2019*

I use this to replace the expensive circuit boards in our train ahu. They work great and I have not had one of these fail yet. I have been using them for 3 plus years now.

## Frequently Bought Together

- Emerson Thermostats White Rodgers 90-340 2 & 3 Pole Relay, No Size
- Emerson 24A34-3 Electric Heat Sequencer, 2 Switches

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---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-18*