# Intermatic T104M 24-Hour Timer Mechanism 208–277V Reliable pool and commercial equipment scheduling depends on durable mechanical timers that can handle higher voltages and heavy electrical loads. The **Intermatic T104M 24-Hour Mechanical Time Switch Mechanism** is designed to provide dependable on/off control for pool pumps, lighting, heaters, and other electrical equipment operating on 208–277 volts. This mechanism-only replacement is commonly used when the existing timer enclosure and wiring remain in good condition, but the internal clock mechanism has failed or become unreliable. By replacing just the mechanism, system functionality can be restored without the need to rewire or replace the entire timer box. Built for continuous duty and proven in commercial and residential pool applications, the T104M is a trusted solution for time-based equipment control. * * * ### Heavy-Duty Timing Control for High-Voltage Applications The T104M is engineered for higher-voltage electrical systems often found in commercial pools, apartment complexes, and larger residential installations. Its 40-amp switching capacity allows it to control high-load equipment reliably over repeated daily cycles. The 24-hour dial provides straightforward scheduling, allowing users to set precise on and off times to manage circulation, lighting, or auxiliary equipment efficiently. * * * ### Mechanism-Only Replacement for Existing Enclosures This product includes the **mechanism only**, making it ideal for servicing existing Intermatic timer enclosures. When the enclosure, wiring, and conduit are still in good shape, replacing just the mechanism is a cost-effective repair option. The T104M drops into compatible Intermatic enclosures, restoring accurate timing control without disturbing existing electrical connections. * * * ### Built for Long-Term, Continuous Operation Mechanical timers are often exposed to heat, vibration, and constant use. The Intermatic T104M is built with durable internal components designed for long service life under demanding conditions. Its proven mechanical design continues to make it a preferred choice for pool professionals who prioritize reliability over complex electronic controls. * * * ### Why Mechanical Time Switches Still Matter Mechanical timers remain a dependable choice for many pool systems. Using a mechanical time switch helps: - Maintain predictable daily equipment schedules - Handle high electrical loads reliably - Reduce unnecessary equipment runtime - Support energy-efficient pool operation Simplicity and durability make mechanical timers a long-standing industry standard. * * * ### Product Specifications Specification Details Product Name Intermatic T104M Time Switch Mechanism Model Number T104M SKU I953\_T104M Manufacturer Intermatic Voltage Rating 208–277V Timer Type 24-hour mechanical Load Capacity 40 amps Component Type Mechanism only Compatibility Intermatic T100 Series enclosures Application Pool, spa, and commercial equipment control * * * ### Buy with Confidence from Benchmark Pool Supply When you purchase the **Intermatic T104M Time Switch Mechanism** from Benchmark Pool Supply, you’re buying from a locally owned pool supply retailer that understands real-world pool electrical systems. Benchmark Pool Supply supports homeowners and service professionals with proven equipment, knowledgeable guidance, and convenient online ordering with in-store pickup. We focus on reliable components that keep pool systems running on schedule. ## Details - **Price:** 77.95 USD - **Vendor:** Intermatic - **Type:** Automation & Electrical - **Tags:** Ready for Links, SEO Added ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 77.95 USD | In stock | ## Images - Intermatic T104M 24-Hour Timer Mechanism 208–277V pool equipment replacement part from Benchmark Pool Supply --- > Source: [Benchmark Pool Supply](https://benchmarkpoolsupply.com/products/intermatic-t104m-time-switch-mechanism) > Updated: 2026-07-23