---
product_id: 27413807
title: "T104M 24-Hour Mechanical Timer Mechanism, 208-277V DPST"
brand: "intermatic"
price: "AR$315193"
currency: ARS
in_stock: true
reviews_count: 13
category: "Intermatic"
url: https://www.desertcart.com.ar/products/27413807-t104m-24-hour-mechanical-timer-mechanism-208-277v-dpst
store_origin: AR
region: Argentina
---

# 12 ON/OFF cycles/day Manual override switch 40A load capacity T104M 24-Hour Mechanical Timer Mechanism, 208-277V DPST

**Brand:** intermatic
**Price:** AR$315193
**Availability:** ✅ In Stock

## Summary

> ⏳ Master your time, power your life — effortlessly.

## Quick Answers

- **What is this?** T104M 24-Hour Mechanical Timer Mechanism, 208-277V DPST by intermatic
- **How much does it cost?** AR$315193 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/27413807-t104m-24-hour-mechanical-timer-mechanism-208-277v-dpst)

## Best For

- intermatic enthusiasts

## Why This Product

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

## Key Features

- • **Ready to Go:** Includes ON/OFF trippers for quick setup and reliable time-based automation
- • **Built to Last:** Proven durability trusted across industrial, commercial, and residential settings
- • **Instant Control:** Convenient manual override lets you take charge anytime without hassle
- • **Precision Scheduling:** Customize up to 12 ON/OFF operations daily for exact control over your devices
- • **Powerhouse Performance:** Handles heavy-duty electrical loads up to 40 amps per pole with ease

## Overview

The Intermatic T104M Mechanical Time Switch is a robust, metal-constructed timer mechanism designed for 24-hour control with up to 12 ON/OFF settings daily. Rated for 250 volts and capable of handling 40 amps per pole, it offers proven durability and a manual override for flexible operation. Ideal for industrial, commercial, and residential use, it comes with included trippers for easy installation and reliable performance.

## Description

Dial Timer Mechanism, Time Period 24 Hour, Contact Form Dpst, Voltage Rating 250 Volts, For Timer Numbers G0428382, G2848361 And G2997181, Motor Sold Separately

Review: Right Part for my Setup and Works Great - Perfect replacement. I did the research and bought the correct part. Installation was easy. I did have to extend a wire to reach the other timer and to reach the breaker. Working great so far.
Review: Easy to use - We have higher rate hours with our electric company and this helps tremendously. We had a professional install and he also commented it was a spot on device. Easy to set and change settings! Great price compared to local box stores as well! You can basically set it and forget it!

## Features

- PROVEN DURABILITY - The Intermatic T100 Series Mechanical Time Switch has a proven track record of durability, standing the test of time in industrial, commercial, and residential applications.
- HIGH LOAD CAPACITY - With the highest HP ratings in the industry, this time switch can handle electrical loads up to 40 A per pole, providing robust and reliable control for a wide range of applications.
- VERSATILE SCHEDULING - Enjoy direct 24-hour control with the flexibility of up to 12 ON/OFF operations per day. Set minimum ON/OFF times of one hour for precise and customizable scheduling
- CONVENIENT MANUAL OVERRIDE - The built-in manual override switch adds convenience, allowing you to take immediate control when needed, providing flexibility in managing your electrical loads
- TRIPPER INCLUDED - Each time switch comes equipped with one ON and one OFF tripper, offering a complete solution for 1 to 12 "On/Off" operations each day. Easy to set up and ready for reliable time-based control

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001DNYMV6 |
| Best Sellers Rank | #4,378 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 in Wall Timer Switches |
| Brand | Intermatic |
| Brand Name | Intermatic |
| Color | Gray |
| Customer Reviews | 4.5 out of 5 stars 13,583 Reviews |
| Global Trade Identification Number | 00078275000261 |
| Included Components | Unit^Instruction Guide |
| Item Dimensions D x W x H | 2.5"D x 5"W x 8"H |
| Item Highlight | Mechanism-Only Heavy-Duty Replacement with Manual Override, 208-277 VAC, DPST, for Lights, Pumps, Fans, and HVAC Systems |
| Item Type Name | Mechanical Time Switch Mechanism |
| Item Weight | 16 ounces |
| Manufacturer | Intermatic |
| Manufacturer Part Number | T104M |
| Manufacturer Warranty Description | 1-year. |
| Material | Metal |
| Material Type | Metal |
| Model Number | T104M |
| Number of Items | 1 |
| Number of settings | 12 |
| Product Dimensions | 2.5"D x 5"W x 8"H |
| UPC | 094701225251 789610109401 343538170648 078275000261 756655425643 789610254262 735090841720 637509102630 783961476021 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Intermatic
- **Color:** Gray
- **Item Weight:** 1 Pounds
- **Material:** Metal
- **Product Dimensions:** 2.5"D x 5"W x 8"H

## Images

![T104M 24-Hour Mechanical Timer Mechanism, 208-277V DPST - Image 1](https://m.media-amazon.com/images/I/81f-RXfgySL.jpg)

## Available Options

This product comes in different **Size, Set** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Right Part for my Setup and Works Great
*by R***E on August 9, 2026*

Perfect replacement. I did the research and bought the correct part. Installation was easy. I did have to extend a wire to reach the other timer and to reach the breaker. Working great so far.

### ⭐⭐⭐⭐⭐ Easy to use
*by G***W on July 28, 2026*

We have higher rate hours with our electric company and this helps tremendously. We had a professional install and he also commented it was a spot on device. Easy to set and change settings! Great price compared to local box stores as well! You can basically set it and forget it!

### ⭐⭐⭐⭐⭐ I'd Buy it Again
*by W***R on August 24, 2016*

This time switch has been switching our in-ground pool pump off and on, daily, May to mid-September for four summer seasons. The first two winters, we removed the unit from its housing and took it inside. Recently we've kept it outside, without power on the circuit, because we now leave the pump outside all winter and we bump the pump motor once or twice in the off-season (when the temperature is above freezing and the intake to the pump is open so that the pump won't create suction on the winterized pool). I especially like the manual on-off switch that lets us bypass the time settings, because it comes in so handy when back washing the filter, pumping out rainwater and, as said, bumping the motor in winter. As long as the circuit is active, the time switch will keep accurate time, even when you're using the on-off switch in manual mode. But it's mechanically timed so you have to reset it if there's a local power failure, or in the spring (we keep the circuit off in the winter except when bumping the pump motor). Concerning the timer -- there is only one Off and one On setting for every 24 hours. The on & off switches are mechanically adjustable, so we can run the pool pump, say, 20 hours a day when we first open the pool and then set it back to, say 16 or 12 hours a day, later. The switches are designed to be tightened down with a thumbscrew. I normally tweak the screw down just a little bit harder by gently turning it an additional quarter-turn with needlenose pliers. Offhand, I would say that you could set it to a 23 or 23-1/2 hour On or Off cycle, if you only want to activate or deactivate for a short time. But not much more than that. Mechanically. it's limited in the switches (think of them as cams) that require a degree of travel in order to turn on or off. In other words, don't expect to be able to set them to go Off then On again after 1 or 2 minutes. But applications that would require such timing are very, very rare. If you don't have basic electrical skills, hire an electrician to install it. If you plan to install this automated switch anywhere near a swimming pool, you may want to use a GFI circuit. Ours is 25 feet away from the pool and behind an 8 foot wooden fence, with nothing but plastic pipe between the pump and the pool, so we use a traditional circuit breaker. Finally, the time switch comes with a metal box. We mounted ours on a brick wall where there is no back-splash from the rain. All of our cable penetrations come through the bottom of the box and we use cable clamps (although not rain-tight) where the wires enter. With this setup, I have never seen a drop of water inside the box. There are gaskets where the hinged door closes on the box. Naturally, the box has been mounted outdoors all of these four years. There is a small degree of corrosion but, so far, not nearly enough to warrant concern of a rust-through. I expect this metal housing to last another four years, or even more. But the manufacturer would do well by applying a little extra paint. BOTTOM LINE: Nothing lasts forever; especially when exposed to the elements. This timer switch has held up very well. It shows no sign of failing in the near future. And even if it does, it has already paid for itself.

## Frequently Bought Together

- Intermatic T104M Mechanical Time Switch Mechanism Only
- 156T1978A Time Switch Trippers Replacement for Intermatic Fit T100 Series Timers 2 Pack (4 ON / 4 Off / 8 Screws)
- Intermatic 156T1978A Time Switch Tripper Kit - Genuine 2-Pack Trippers - Exclusive Compatibility with T100, T7000, WH40 Series Timers - Easy Setup for Precision Time Control

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-10-30*