1. Introducció
The Intermatic T104P3 Mechanical Time Switch is designed for precise 24-hour control of various electrical loads in industrial, commercial, and residential settings. This robust device features a double pole, single throw configuration and is housed in a durable NEMA 3R enclosure, making it suitable for both indoor and outdoor installations. It supports up to 12 ON/OFF operations per day with a minimum on/off time of one hour, and includes an override switch for manual control. This manual provides essential information for the safe installation, operation, and maintenance of your T104P3 time switch.
2. Informació de seguretat
ADVERTÈNCIA: Risc de descàrrega elèctrica.
- Always turn power OFF at the main panel before servicing this switch or the equipment it controls.
- Utilitzeu només conductors de coure.
- Reinstall the safety guard after wiring.
- La instal·lació l'ha de dur a terme un electricista qualificat d'acord amb totes les normes elèctriques locals i nacionals.
- Ensure the enclosure is properly sealed after installation to maintain its NEMA 3R rating.
3. Contingut del paquet
Verifiqueu que tots els components siguin presents en desembalar-lo:
- Intermatic T104P3 Mechanical Time Switch with NEMA 3R Enclosure
- Un (1) ON Tripper
- Un (1) disparador OFF
- Manual d'instruccions (aquest document)
4. Especificacions
| Número de model | T104P3 |
| Voltage | 208-277 VCA, 60 Hz |
| Configuració | Double Pole, Single Throw (DPST) |
| Tancament | NEMA 3R Plastic (Beige) |
| Capacitat de càrrega màxima | Fins a 40 Amps per pol |
| Temps mínim d'encesa/apagada | 1 hores |
| Operacions diàries | Up to 12 ON/OFF operations |
| Dimensions (P x A x A) | 6.5" x 10" x 4" |
| Pes de l'article | 2 lliures |
Certificacions:

Image: CSA, UL, and LED compatibility logos indicating product compliance with safety and performance standards.
5. Configuració i instal·lació
Important: Ensure power is disconnected at the circuit breaker before beginning any installation work. This device must be installed by a qualified professional.
- Muntatge de la carcassa: Select a suitable location for the time switch, ensuring it is accessible for programming and maintenance. The NEMA 3R enclosure is weather-resistant, allowing for outdoor installation. Securely mount the enclosure to a flat surface using appropriate hardware.
- Cablejat: Open the enclosure door. Carefully remove the safety guard to access the wiring terminals. Connect the electrical supply wires and load wires to the designated terminals as per the wiring diagram provided inside the enclosure. Ensure all connections are tight and secure. This unit requires copper conductors only.

Image: The Intermatic T104P3 Mechanical Time Switch with its NEMA 3R enclosure open, revealing the internal mechanical dial and the wiring terminal block with a safety warning.
- Reinstall Safety Guard: Once wiring is complete, replace the safety guard over the terminals.
- Tancament tancat: Close and latch the enclosure door to maintain its weather-resistant rating.
- Restaura l'alimentació: Restableix l'alimentació a l'interruptor principal.
6. Instruccions de funcionament
The T104P3 time switch allows for easy programming of ON/OFF cycles.

Imatge: Una imatge detallada view of the mechanical timer dial, showing the 24-hour markings, the current time indicator, and the slots for inserting ON and OFF trippers.
- Estableix l'hora actual: Rotate the dial clockwise until the current time aligns with the time indicator arrow. The dial is marked for 24 hours.
- Instal·leu els Trippers: Insert the ON tripper (typically green or silver) into the dial at the desired time for the load to turn ON. Insert the OFF tripper (typically red or black) at the desired time for the load to turn OFF. Ensure trippers are securely seated. The minimum ON/OFF duration is one hour. You can install up to 12 pairs of ON/OFF trippers for multiple cycles per day.
- Anulació manual: The time switch includes a manual override lever (often red or orange) located below the dial. This lever allows you to temporarily switch the load ON or OFF without affecting the programmed schedule. Move the lever to the 'ON' or 'OFF' position as needed. The timer will resume its programmed schedule at the next scheduled ON or OFF event.
7. Manteniment
The Intermatic T104P3 is designed for durability and requires minimal maintenance.
- Neteja: Netegeu periòdicament l'exterior del recinte amb anuncisamp cloth. Do not use abrasive cleaners or solvents. Ensure the enclosure door seal is free of debris.
- Inspecció: Annually inspect the wiring connections for tightness and signs of corrosion. Check the enclosure for any damage that might compromise its weather resistance.
- Comprovació del viatger: Ensure trippers are securely in place and have not shifted over time.
Desconnecteu sempre l'alimentació abans de realitzar qualsevol inspecció o neteja interna.
8. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La càrrega no s'encén/apaga a les hores programades. |
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| El dial del temporitzador no gira. |
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| Load does not receive power, even with timer set correctly. |
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9. Garantia i Suport
For warranty information and technical support, please refer to the documentation included with your product packaging or visit the official Intermatic website. You may also contact Intermatic customer service directly for assistance with product inquiries, troubleshooting, or replacement parts.
Informació de contacte d'Intermatic: Consulteu www.intermatic.com for the most current contact details.





