Intermatic T104R3 24-Hour Mechanical Time Switch, DPST, 208-277V, Type 3R Metal Enclosure
Intermatic T104R3 is a heavy-duty 24-hour mechanical time switch designed for
pool, spa, outdoor, commercial, and equipment control applications. It features a DPST switch,
a weather-resistant Type 3R metal enclosure, and is built for dependable scheduled on/off control
of compatible 208-277V loads.
Key Features
- Part Number: T104R3
- Brand: Intermatic
- Product Type: 24-hour mechanical time switch
- Input Voltage: 208-277 VAC, 60 Hz
- Switch Type: DPST (Double Pole Single Throw)
- Amperage Rating: 40A
- Outdoor Type 3R metal enclosure
- Supports up to 12 ON/OFF operations per day
- Manual override for convenient operation
- Commonly used for pool pumps, heaters, lighting, and other timed equipment circuits
- Includes ON/OFF trippers (standard with this timer style)
Applications
Ideal for pool and spa equipment control where a rugged mechanical timer is preferred, including pump circuits,
booster pumps, lighting, and other outdoor equipment requiring scheduled operation on 208V, 240V, or 277V
compatible systems.
Usage Notes
- Verify supply voltage and load requirements before ordering and installation.
- This model is commonly used for 240V pool equipment circuits, but confirm your exact application wiring needs.
- Install in accordance with manufacturer instructions and local electrical codes.
- Disconnect power at the breaker before servicing or wiring the timer.
- Professional installation by a qualified electrician is recommended.
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Maintenance Tips
- Check the timer dial regularly to confirm it is advancing properly.
- Inspect trippers for wear and tighten/replace if switching becomes inconsistent.
- Keep the enclosure closed and sealed to reduce moisture and debris intrusion.
- Inspect wiring terminals periodically for heat discoloration or loose connections (power off first).
