1. Introduktion
The Intermatic T101 is a robust and reliable 24-hour mechanical timer switch designed for heavy-duty applications. It provides automatic control for various electrical loads such as indoor lights, water heaters, exhaust fans, pool pumps, and HVAC systems. Its durable steel enclosure makes it suitable for indoor installations in utility rooms, garages, workshops, or control panels. This manual provides essential information for the safe installation, operation, and maintenance of your T101 timer switch.

Figure 1: Intermatic T101 Timer Switch (Closed Enclosure)
2. Nøglefunktioner
- Single Pole, Single Throw (SPST): Supports heavy-duty 40 Amp loads at 120V AC.
- 24-timers mekanisk kontrol: Provides reliable, analog-style daily scheduling.
- Multiple ON/OFF Operations: Capable of up to 12 ON/OFF operations every 24 hours.
- Included Trippers: Comes with one ON and one OFF tripper for immediate programming.
- Manuel tilsidesættelse: Built-in lever for temporary on-demand control without affecting programmed timing.
- Durable Indoor Enclosure: Constructed with a gray steel housing and knockout ports for wiring.
- Certificeringer: UL and CSA certified for safety and reliability.
3. Opsætning og installation
WARNING: Disconnect power at the main panel before servicing this switch or the equipment it controls. Failure to do so may result in serious injury or death.
Installationen skal udføres af en kvalificeret elektriker i overensstemmelse med alle lokale og nationale el-forskrifter.
3.1 Montering
- Choose a suitable indoor location for mounting the timer, ensuring it is protected from moisture and extreme temperatures.
- Securely mount the timer enclosure to a wall or suitable surface using appropriate fasteners through the mounting holes provided.
3.2 Ledningsføring
The T101 is a Single Pole, Single Throw (SPST) switch designed for 120V AC applications. Refer to the wiring diagram inside the timer enclosure for specific connections. Ensure all connections are tight and secure.
- Connect the incoming LINE (hot) wire to the terminal marked 'LINE'.
- Connect the outgoing LÆS ledningen til terminalen mærket 'LOAD'.
- Tilslut NEUTRAL wire to the terminal marked 'NEUTRAL'.
- Sørg for korrekt jording i henhold til lokale regler.
CAUTION: Do not connect aluminum wires to switch terminals. Use copper conductors only.

Figur 2: Intern view showing wiring terminals and timer dial
4. Betjeningsvejledning
4.1 Indstilling af aktuel tid
- Rotate the yellow dial clockwise until the current time of day aligns with the FASTSAT TIDSPUNKT arrow located at the center of the dial.
- Ensure AM/PM is correctly observed (e.g., 3 PM is 15 on the 24-hour dial).
4.2 Programmering af tænd/sluk-tider
The timer uses trippers to set ON and OFF events. One ON tripper (green) and one OFF tripper (red) are included.
- To set an ON time, slide the green ON tripper onto the dial at the desired time.
- To set an OFF time, slide the red OFF tripper onto the dial at the desired time.
- Ensure a minimum of 1-hour interval between ON and OFF events.
- Additional trippers can be purchased to program up to 12 ON/OFF events per day.
4.3 Manuel tilsidesættelse
The T101 features a manual override lever located below the dial. This allows you to temporarily turn the connected load ON or OFF without disturbing the programmed schedule.
- To manually turn the load ON, push the lever towards the 'ON' position.
- To manually turn the load OFF, push the lever towards the 'OFF' position.
- The timer will resume its programmed schedule at the next scheduled ON or OFF event.

Figure 3: Timer dial with trippers and manual override lever
5. Vedligeholdelse
The Intermatic T101 timer switch is designed for long-term, reliable operation with minimal maintenance. No user-serviceable parts are inside the sealed motor mechanism.
- Undersøg regelmæssigt timeren for tegn på skader eller løse forbindelser.
- Keep the enclosure clean and free from dust and debris. Use a dry cloth for cleaning.
- Do not lubricate any part of the timer.
6. Fejlfinding
If you experience issues with your T101 timer, refer to the following common problems and solutions:
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Timerknappen drejer ikke. | Ingen strøm til timeren. | Check circuit breaker or fuse. Verify wiring connections. |
| Load does not turn ON/OFF at programmed times. | Trippers incorrectly placed or missing. | Ensure ON and OFF trippers are securely in place at the desired times. |
| Load does not turn ON/OFF. | Faulty wiring or loose connections. | Verify all wiring connections are secure. Consult a qualified electrician. |
| Manuel overstyring virker ikke. | Lever stuck or damaged. | Gently attempt to move the lever. If damaged, contact customer support. |
7. Specifikationer
| Attribut | Værdi |
|---|---|
| Modelnummer | T101 |
| Voltage | 120V AC |
| Ampslette | 40 Amp |
| Switch Type | Single Pole, Single Throw (SPST) |
| Indkapslingsmateriale | Stål |
| Farve | Grå |
| Produktmål (D x B x H) | 5.3 cm x 8.2 cm x 3.3 cm |
| Varens vægt | 2.6 pund |
| Antal indstillinger | 12 (with additional trippers) |
| Batterier påkrævet | Ingen |
| UPC | 078275000018 |
8. Garanti og support
For warranty information and technical support, please contact Intermatic customer service directly. Keep your purchase receipt as proof of purchase.
You can find more information about Intermatic products and support on their official webhjemmeside eller brandbutik:





