---
product_id: 312417056
title: "Tecmark TBS 300 Series Air Switch 25amp SPNO Latching TBS339"
brand: "tecmark"
price: "R904"
currency: ZAR
in_stock: true
reviews_count: 5
category: "Tecmark"
url: https://www.desertcart.co.za/products/312417056-tecmark-tbs-300-series-air-switch-25amp-spno-latching-tbs339
store_origin: ZA
region: South Africa
---

# 25A high current rating Single Pole Normally Open latching switch 5/16" quick connect terminals Tecmark TBS 300 Series Air Switch 25amp SPNO Latching TBS339

**Brand:** tecmark
**Price:** R904
**Availability:** ✅ In Stock

## Summary

> 🔘 Switch Smart, Stay Powered – The Ultimate 25A Air Switch for Pros

## Quick Answers

- **What is this?** Tecmark TBS 300 Series Air Switch 25amp SPNO Latching TBS339 by tecmark
- **How much does it cost?** R904 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/312417056-tecmark-tbs-300-series-air-switch-25amp-spno-latching-tbs339)

## Best For

- tecmark enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Durable metal contacts with IP54 rating for dust and splash resistance.
- • **Precision Control:** Single Pole Normally Open (SPNO) latching design ensures reliable on/off switching.
- • **Compact & Versatile:** Small 5/8" panel hole mount fits seamlessly into tight spaces.
- • **Effortless Installation:** 5/16" male quick connect tabs for fast, secure wiring.
- • **Power Up with Confidence:** Handles up to 25 amps for heavy-duty appliances and machinery.

## Overview

The Tecmark TBS 300 Series Air Switch (model TBS339) is a compact, panel-mount latching switch rated for 25 amps. Featuring a Single Pole Normally Open (SPNO) contact design, it offers reliable manual control with quick connect terminals for easy installation. Built with durable metal contacts and an IP54 rating, it’s ideal for controlling lights, fans, heaters, and heavy machinery in demanding environments.

## Description

TBS 300 Series Air Switch Single pole, latching or momentary contacts, and are compact in size. Wire connects are 5/16" male quick connect tabs and required panel hole is 5/8" Specs: Function - Latching Air Switch Type - Single Pole Normally Open (spno) Model - TBS 339 Air Switch Mount - 9/16" hole Air Tube Connection Size - 1/8" Barb (b) Switch Amperage - 25A Manufacturer - Tridelta/Tecmark

Review: Installed and Working Fine (See review notes) - I used this to repair our old Jacuzzi tub that came with our house. A couple notes: 1) It doesn't come with a tube lock nut like the original pump equipment, but it doesn' actually need it. 2) The hole on the housing that the treaded side gets push though is set up for the original equipment that had 2 flat sides. So I drilled out the plastic cover a little bit so this new switch would fit through. I guess you could use a file or similar to make to flat sides ont he switch, but seemed like making the cover hole round was a better idea.
Review: No issues - No issues. Intalled well

## Features

- Tecmark TBS339 Latching Air Switch
- 25amp, SPNO
- Air Switch, Tecmark, TBS 339, SPNO, 25A, thd, latch

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002LGGV90 |
| Actuator Type | Push Button |
| Brand | Tecmark |
| Brand Name | Tecmark |
| Circuit Type | 1-way |
| Color | Black |
| Compatible Devices | Lights, fans, heaters, appliances up to 25 amps |
| Compatible with Vehicle Type | Truck, Heavy Machinery, Marine |
| Connectivity Protocol | X-10 |
| Connector Type | Quick Connect |
| Connector type | Quick Connect |
| Contact Material | Metal |
| Contact Type | Normally Open |
| Contact type | Normally Open |
| Control Method | Sensor |
| Control Type | Automatic |
| Controller Type | Push Button |
| Current Rating | 25 Amps |
| Current rating | 25 Amps |
| Customer Reviews | 4.6 out of 5 stars 533 Reviews |
| International Protection Rating | IP54 |
| Item Dimensions | 15.2 x 10.2 x 15.2 centimeters |
| Item Weight | 0.01 Ounces |
| Lower Temperature Rating | 1 Degrees Celsius |
| Manufacturer | Tecmark |
| Material Type | Metal |
| Model | TBS-339 |
| Mounting Type | Panel Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operation Mode | manual |
| Operation mode | manual |
| Part Number | TBS-339 |
| Specification Met | IP54 |
| Switch Type | LATCHING |
| Switch type | LATCHING |
| Terminal | Blade |
| UPC | 753610463269 |
| Unit Count | 1.0 Count |
| Wattage | 3000 watts |

## Product Details

- **Brand:** Tecmark
- **Circuit Type:** 1-way
- **Connector Type:** Quick Connect
- **Contact Type:** Normally Open
- **Current Rating:** 25 Amps
- **Item dimensions L x W x H:** 6 x 4 x 6 inches
- **Material:** Plastic
- **Operation Mode:** ON-OFF
- **Switch Type:** Latching
- **Terminal:** Spade

## Images

![Tecmark TBS 300 Series Air Switch 25amp SPNO Latching TBS339 - Image 1](https://m.media-amazon.com/images/I/51UnJKzmoML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Installed and Working Fine (See review notes)
*by J***M on 5 September 2025*

I used this to repair our old Jacuzzi tub that came with our house. A couple notes: 1) It doesn't come with a tube lock nut like the original pump equipment, but it doesn' actually need it. 2) The hole on the housing that the treaded side gets push though is set up for the original equipment that had 2 flat sides. So I drilled out the plastic cover a little bit so this new switch would fit through. I guess you could use a file or similar to make to flat sides ont he switch, but seemed like making the cover hole round was a better idea.

### ⭐⭐⭐⭐ No issues
*by M***B on 17 March 2026*

No issues. Intalled well

### ⭐⭐⭐⭐⭐ Great product
*by M***. on 1 March 2025*

Works fine

## Frequently Bought Together

- Tecmark TBS 300 Series Air Switch 25amp SPNO Latching TBS339
- Jacuzzi C377000;; On off air button bellow (air pump); Unfinish
- WSDMAVIS 1 Set Pneumatic Switch for Garbage Disposal 16A On Off Push Button Switch for Bath Tub Spa Jetted Whirlpool Jet Set

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-09-01*