1. Introdución
The Intermatic T101P ON/Off T100 Series Mechanical Timer Switch is a dependable device designed to control electrical loads up to 40 Amperes. It allows for scheduled ON/OFF operations over a 24-hour period, offering convenience and energy management for various applications. This manual provides essential information for the safe installation, operation, and maintenance of your timer switch.
2. Información de seguridade
Please read and understand all instructions before installing or operating this device. Failure to follow these instructions may result in electrical shock, fire, or serious injury.
- AVISO: Disconnect power at the main circuit breaker or fuse box before installing or servicing the timer switch.
- A instalación debe ser realizada por un electricista cualificado de acordo con todos os códigos eléctricos nacionais e locais.
- Non conecte os cables de aluminio directamente aos terminais do interruptor. Empregue conectores de cobre a aluminio axeitados se é necesario.
- Ensure the timer switch is installed in a suitable NEMA 3R enclosure for outdoor or damp localizacións.
- Verifique que o voltage and current ratings of the timer switch match your application requirements.
3. Contido do paquete
Comprobe que todos os compoñentes estean presentes antes de comezar a instalación:
- Intermatic T101P Mechanical Timer Switch
- Manual de instrucións (este documento)
- Mounting hardware (if included with specific packaging)
4. Características do produto
- Operación 24 horas: Provides up to 12 ON/OFF operations per day.
- Alta capacidade: Handles electrical loads up to 40 Amperes per pole.
- Anulación manual: Features a convenient manual lever for temporary ON/OFF control without affecting programmed settings.
- Carcasa duradeira: NEMA 3R rated plastic enclosure suitable for indoor and outdoor use.
- Aplicacións versátiles: Ideal for lighting, signs, filters, electric fences, fans, conveyors, pool heaters, blowers, and pumps.
5. Instalación
Follow these steps for proper installation of the Intermatic T101P timer switch:
- Desconexión de alimentación: Turn OFF power at the main service panel before beginning any wiring. Ensure the circuit is de-energized using a voltagprobador.
- Montaxe: Select a suitable location for the timer switch. Mount the enclosure securely using appropriate screws and anchors.
- Cableado: Refer to the wiring diagram inside the timer switch enclosure and the image below. Connect the incoming power (LINE) and outgoing load (LOAD) wires to the designated terminals.

Figura 1: Interno view of the Intermatic T101P timer switch, showing the dial, manual lever, and wiring terminals. Note the 'OFF' and 'ON' positions for the manual lever, and the 'LINE' and 'LOAD' connections.
- Notas importantes sobre o cableado:
- Observe the warning: DO NOT REMOVE THIS INSULATOR. This component is crucial for safety and proper operation. Wire, lift, and swing the insulator as needed, then replace it after wiring.
- DO NOT CONNECT ALUMINUM WIRES TO SWITCH TERMINALS. Use only copper conductors or approved copper-to-aluminum connectors.
- Pechar o recinto: Once wiring is complete and verified, securely close the timer switch enclosure.
- Restaurar enerxía: Restablecer a electricidade no panel de servizo principal.
6. Funcionamento
The T101P timer switch features a 24-hour dial for setting automatic ON/OFF times and a manual override lever.

Figura 2: Interno view of the Intermatic T101P timer switch, showing the yellow dial and the protective insulator covering the wiring terminals.
6.1 Setting Automatic ON/OFF Times
- Establecer a hora actual: Rotate the yellow dial clockwise until the current time of day aligns with the time arrow indicator.
- Install ON/OFF Trippers: The timer comes with ON (green) and OFF (red) trippers. Slide these trippers onto the dial at the desired ON and OFF times. Ensure they are securely fastened. The minimum ON/OFF time is 1 hour.
- Verificar o funcionamento: The timer will now automatically turn the connected device ON and OFF according to the set schedule.
6.2 Using the Manual Override Lever
The manual override lever allows you to temporarily switch the connected device ON or OFF without disturbing the programmed schedule.
- To manually turn the device ON, push the lever to the 'ON' position.
- To manually turn the device OFF, push the lever to the 'OFF' position.
- O temporizador retomará a súa programación no seguinte evento de acendido ou apagado programado.
7. Mantemento
The Intermatic T101P is designed for minimal maintenance. Periodically inspect the unit for any signs of damage or loose connections. Ensure the enclosure is free from debris and moisture. No user-serviceable parts are inside; refer servicing to qualified personnel.
8 Solución de problemas
| Problema | Causa posible | Solución |
|---|---|---|
| O temporizador non funciona. | No power to the unit. Incorrect wiring. | Check circuit breaker/fuse. Verify wiring connections are secure and correct. |
| O dispositivo non se acende/apaga ás horas programadas. | Trippers incorrectly set. Current time not set correctly. Manual override engaged. | Ensure trippers are firmly in place at desired times. Adjust the dial to the correct current time. Check if the manual override lever is in the neutral position. |
| Timer makes unusual noise. | Problema mecánico interno. | Disconnect power immediately. Contact a qualified electrician or Intermatic customer support. Do not attempt to repair. |
9. Especificacións
| Especificación | Valor |
|---|---|
| Tipo | 24 Hour Mechanical Timer |
| Maximum Number of Operations | 12 por día |
| Tempo mínimo de acendido/apagado | 1 horas |
| Tipo de cambio | SPST (Single Pole Single Throw) |
| Current Rating (Resistive/Inductive/Tungsten) | 40 Amp |
| Current Rating (Ballast) | 16 Amp a 277 voltios AC |
| Current Rating (Motor, Full Load) | 24 Amp at 120 Volt AC, 28 Amp a 240 voltios AC |
| Voltage Avaliación | 120 Volt AC at 60 Hertz |
| Power Rating (Motor) | 2 HP at 120 Volt AC, 5 HP at 240 Volt AC |
| Power Rating (Pilot Duty) | 1000 voltios Amp |
| Power Rating (Input) | 3 Watts |
| Temperatura de funcionamento | -40 to 130 Deg F |
| Recinto | NEMA 3R |
| Material | Plástico |
| Dimensións (ancho x profundo x alto) | 6.5 polgadas x 4 polgadas x 10 polgadas |
| Cor | Beixe |
| Peso do elemento | 1.29 libras |
| Aprobacións | UL (Canada and US), CSA (Canada and US) |
10. Garantía e soporte
Para obter información sobre a garantía ou asistencia técnica, consulte a páxina oficial de Intermatic websitio web ou póñase en contacto co seu departamento de atención ao cliente. Garde o recibo da compra como proba de compra.