---
product_id: 36971526
title: "- Tjernlund Fan Proving Switch 950-0650 Fan Proving Switch"
brand: "tjernlund"
price: "NT$7996"
currency: TWD
in_stock: true
reviews_count: 2
url: https://www.desertcart.tw/products/36971526-tjernlund-fan-proving-switch-950-0650-fan-proving-switch
store_origin: TW
region: Taiwan
---

# Compact 4x2x4 inch form factor Durable screw terminal connectors Precision ON-NONE-ON operation - Tjernlund Fan Proving Switch 950-0650 Fan Proving Switch

**Brand:** tjernlund
**Price:** NT$7996
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your HVAC with precision and reliability!

## Quick Answers

- **What is this?** - Tjernlund Fan Proving Switch 950-0650 Fan Proving Switch by tjernlund
- **How much does it cost?** NT$7996 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/36971526-tjernlund-fan-proving-switch-950-0650-fan-proving-switch)

## Best For

- tjernlund enthusiasts

## Why This Product

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

## Key Features

- • **Easy Installation:** Screw terminal connectors simplify setup and maintenance.
- • **UL Certified Quality:** Meets rigorous safety and performance standards for peace of mind.
- • **Compact & Space-Saving:** Small footprint fits seamlessly into tight HVAC control panels.
- • **Robust Copper Contacts:** Long-lasting conductivity for consistent performance under demanding conditions.
- • **Reliable Fan Status Detection:** Ensures your HVAC system runs smoothly with accurate fan proving.

## Overview

The Tjernlund Fan Proving Switch 950-0650 is a compact, UL-certified electrical switch designed for HVAC systems to reliably detect fan operation status. Featuring a durable copper contact, screw terminal connectors, and a precise ON-NONE-ON operation mode, it ensures seamless integration and dependable performance in professional heating and cooling setups.

## Description

Tjernlund products inception dates back to 1938 when emil Tjernlund and his son Robert started designing and manufacturing oil fired forced air furnaces. From this start their product offering evolved into gas fired furnaces and custom packaged roof top heating & cooling equipment. In the mid 1950's our auto draft inducers were developed to eliminate draft problems associated with short stacks on roof top units. Other people within the heating industry soon saw the advantages of our draft inducers and wholesale distribution of the auto draft inducers began in 1957.

## Features

- Category: HVAC and Refrigeration -- Replacement Parts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Operation Mode | ON-NONE-ON |
| Contact Type | Normally Open |
| Connector Type | Screw Terminals |
| Brand | Tjernlund |
| Terminal | Screw |
| Item dimensions L x W x H | 4 x 2 x 4 inches |
| Circuit Type | 1-way |
| Actuator Type | Push Button |
| Contact Material | Copper |
| International Protection Rating | IP00 |
| Specification Met | UL |
| Control Method | Remote |
| Connectivity Protocol | X-10 |
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Global Trade Identification Number | 00080956950659 |
| Manufacturer | Tjernlund |
| UPC | 080956950659 |
| Part Number | 950-0650 |
| Item Weight | 0.01 ounces |
| Product Dimensions | 4 x 2 x 4 inches |
| Item model number | 950-0650 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Included Components | fan proving switch |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Operation Mode:** ON-NONE-ON
- **Contact Type:** Normally Open
- **Connector Type:** Screw Terminals
- **Brand:** Tjernlund
- **Terminal:** Screw
- **Item dimensions L x W x H:** 4 x 2 x 4 inches
- **Circuit Type:** 1-way
- **Actuator Type:** Push Button
- **Contact Material:** Copper
- **International Protection Rating:** IP00

## Images

![- Tjernlund Fan Proving Switch 950-0650 Fan Proving Switch - Image 1](https://m.media-amazon.com/images/I/811fmsRZVAL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Accurate description
*by J***. on January 12, 2019*

It worked along with the other parts I ordered thru Amazon

### ⭐⭐⭐⭐⭐ Quality is very good
*by F***1 on August 5, 2019*

Worked great

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**Shop now:** [https://www.desertcart.tw/products/36971526-tjernlund-fan-proving-switch-950-0650-fan-proving-switch](https://www.desertcart.tw/products/36971526-tjernlund-fan-proving-switch-950-0650-fan-proving-switch)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-10-17*