---
product_id: 27438423
title: "Intermatic T104R 24 Hour Mechanical Timer Switch - 208–277 VAC, DPST, Type 3R Indoor/Outdoor Metal Enclosure, Heavy-Duty, Manual Override, 40 Amp – Ideal for Lights, Pumps, Fans, and HVAC Systems"
brand: "intermatic"
price: "S$125"
currency: SGD
in_stock: true
reviews_count: 8
category: "Intermatic"
url: https://www.desertcart.sg/products/27438423-intermatic-t104r-24-hour-mechanical-timer-switch-208-277-vac
store_origin: SG
region: Singapore
---

# 12 programmable ON/OFF events daily 40A heavy-duty load capacity Type 3R weather-resistant metal enclosure Intermatic T104R 24 Hour Mechanical Timer Switch - 208–277 VAC, DPST, Type 3R Indoor/Outdoor Metal Enclosure, Heavy-Duty, Manual Override, 40 Amp – Ideal for Lights, Pumps, Fans, and HVAC Systems

**Brand:** intermatic
**Price:** S$125
**Availability:** ✅ In Stock

## Summary

> ⏳ Power your day with precision and durability!

## Quick Answers

- **What is this?** Intermatic T104R 24 Hour Mechanical Timer Switch - 208–277 VAC, DPST, Type 3R Indoor/Outdoor Metal Enclosure, Heavy-Duty, Manual Override, 40 Amp – Ideal for Lights, Pumps, Fans, and HVAC Systems by intermatic
- **How much does it cost?** S$125 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/27438423-intermatic-t104r-24-hour-mechanical-timer-switch-208-277-vac)

## 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

- • **Set It and Forget It:** 12 daily ON/OFF cycles with easy mechanical programming—no batteries or apps needed.
- • **Power Through Anything:** Handles up to 40 amps and motors up to 5 HP for commercial-grade reliability.
- • **Versatile Compatibility:** Supports resistive, inductive, ballast, and pilot duty loads across 208–277 VAC systems.
- • **Built to Brave the Elements:** Durable Type 3R steel enclosure rated for indoor/outdoor use keeps your system safe rain or shine.
- • **Instant Control at Your Fingertips:** Manual override lets you take charge anytime without disrupting your schedule.

## Overview

The Intermatic T104R is a robust 24-hour mechanical timer switch designed for high-demand commercial and residential applications. Featuring a heavy-duty 40A DPST switch, it supports up to 12 daily ON/OFF events with simple mechanical programming. Housed in a weather-resistant Type 3R steel enclosure, it’s built to withstand indoor and outdoor environments, making it ideal for controlling lights, pumps, fans, and HVAC systems with reliable, manual override control.

## Description

Product Description Intermatic T104R 208-277-Volt DPST 24 Hour Mechanical Time Switch with Outdoor Case From the Manufacturer Designed for industrial, commercial and residential applications. Highest HP ratings in the industry for loads up to 40 amps, providing direct 24 hour control of most loads. Provides 1 to 12 "On/Off" operations each day with minimum On/Off times of 1 hour. All models equipped with one "On" and one "Off" tripper.

Review: Worked great - Worked great and foes what it should. Easy to install.
Review: Good piece for buying a timer - My husband was happy with the timer easy to use and install

## Features

- DOUBLE POLE, SINGLE THROW (DPST) – Supports two-line control for high-voltage systems and handles up to 40A loads, including motors up to 5 HP at 240V and 2 HP at 120V, ideal for commercial-grade applications.
- 24-HOUR MECHANICAL CONTROL – Provides daily analog scheduling with up to 12 programmable ON/OFF events per day; perfect for automating lighting, pool pumps, air conditioning units, and other 208–277V equipment.
- TYPE 3R METAL ENCLOSURE – Weather-resistant steel housing is UL-rated for indoor or outdoor installation, making it a great fit for garages, equipment sheds, mechanical rooms, and utility panels.
- TRIPPERS INCLUDED FOR PROGRAMMING – Comes with one ON and one OFF tripper to start scheduling immediately; supports up to 12 ON/OFF cycles with 1-hour minimum intervals—no batteries or digital setup needed.
- WIDE-RANGE LOAD COMPATIBILITY – Handles resistive loads up to 40A at 120–480V, and inductive, ballast, and pilot duty loads up to 277V; UL and CSA listed for safe operation in lighting, HVAC, and industrial control systems.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00099EGNE |
| Best Sellers Rank | #62,715 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #58 in Wall Timer Switches |
| Brand | Intermatic |
| Brand Name | Intermatic |
| Color | Black |
| Customer Reviews | 4.5 out of 5 stars 1,046 Reviews |
| Global Trade Identification Number | 00078275000124 |
| Included Components | T104R |
| Item Dimensions D x W x H | 3.62"D x 5.5"W x 9.38"H |
| Item Weight | 3.38 Pounds |
| Manufacturer | Intermatic |
| Manufacturer Part Number | T104R |
| Manufacturer Warranty Description | 1 year. |
| Material | Steel |
| Material Type | Steel |
| Model Number | T104R |
| Number of settings | 12 |
| Product Dimensions | 3.62"D x 5.5"W x 9.38"H |
| Screen Size | 1.5 Inches |
| UPC | 078275000124 |
| Unit Count | 1.0 Count |

## Product Details

- **Color:** Black
- **Brand:** Intermatic
- **Material:** Steel
- **Product Dimensions:** 3.62"D x 5.5"W x 9.38"H
- **Item Weight:** 3.38 Pounds

## Images

![Intermatic T104R 24 Hour Mechanical Timer Switch - 208–277 VAC, DPST, Type 3R Indoor/Outdoor Metal Enclosure, Heavy-Duty, Manual Override, 40 Amp – Ideal for Lights, Pumps, Fans, and HVAC Systems - Image 1](https://m.media-amazon.com/images/I/815PBivrllL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked great
*by A***R on February 9, 2026*

Worked great and foes what it should. Easy to install.

### ⭐⭐⭐⭐⭐ Good piece for buying a timer
*by C***O on January 20, 2026*

My husband was happy with the timer easy to use and install

### ⭐⭐⭐⭐⭐ Great Pool Timer
*by T***Y on July 19, 2025*

Works perfect - the price was fantastic. I did a lot of comparison shopping to ensure I got the correct price. I am not sure if people can install by themselves - in my case I hired an electrician to do it. We had a different pool timer prior to this one which I did not pick out and it was horrible to set and often needed to be reset. This one is much better quality and easy to us.

## Frequently Bought Together

- Intermatic T104R 208-277-Volt DPST 24 Hour Mechanical Time Switch with Outdoor Case
- Intermatic 156T1978A Time Switch Tripper Kit - Genuine 2-Pack Trippers - Exclusive Compatibility with T100, T7000, WH40 Series Timers - Easy Setup for Precision Time Control
- 156T1978A Time Switch Trippers Replacement for Intermatic Fit T100 Series Timers 2 Pack (4 ON / 4 Off / 8 Screws)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-04-23*