Intermatic T104M Mechanical Time Switch Mechanism — 24-Hour Dial Timer, DPST, 250V

Overview

The Intermatic T104M mechanical time switch mechanism offers dependable, software-free scheduling for a wide range of electrical loads. Designed as the mechanism only, it relies on a separate motor to drive the dial, making it a flexible building block for tailored control in commercial, residential, and light industrial settings.

With a 24-hour dial, this device supports reliable daily cycling without electronics. Its durable construction and robust electrical ratings are built to withstand routine switching in busy environments, giving operators a straightforward solution for time-based control that stays aligned with real-world usage patterns.

Why it stands out

• PROVEN DURABILITY — Long-trusted in the Intermatic T100 family for steady performance over time.
• HIGH LOAD CAPACITY — Handles electrical loads up to 40 A per pole, suitable for demanding applications.
• VERSATILE SCHEDULING — Direct 24-hour control with up to 12 ON/OFF operations per day, plus minimum ON/OFF times of one hour for flexibility.
• CONVENIENT MANUAL OVERRIDE — Built-in override lets you take control on the spot without altering the programmed schedule.
• TRIPPER INCLUDED — Comes with one ON and one OFF tripper, supporting straightforward daily operation from 1 to 12 cycles.

Specifications at a glance

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

Real-world use cases

Imagine storefront lighting that follows a nightly schedule, a workshop with fans that respond to a dial-based program, or irrigation pumps that run at specific intervals. The T104M acts as a reliable mechanical brain for these everyday tasks, allowing you to plan daily routines without relying on digital components.

Tips to get the most from your timer

• Plan up to 12 on/off events per day with one-hour minimum intervals to match your operational needs.
• Use the manual override to test timing or to operate equipment during maintenance without remixing the schedule.
• Pair with a compatible Intermatic motor to complete the timer system and achieve full functionality.
• Keep a spare ON/OFF tripper on hand for quick setup adjustments as requirements evolve.