1. Introdução
This manual provides comprehensive instructions for the installation, operation, maintenance, and troubleshooting of your Intermatic EI230W Electronic Auto-Off Timer. This device is designed to provide convenient, automatic shut-off for various electrical loads, enhancing energy efficiency and convenience in your home or office.
The EI230W timer offers silent operation and simple push-button controls for preset countdown times, making it an ideal replacement for standard single-pole switches.
2. Informações de segurança
WARNING: RISK OF ELECTRIC SHOCK. This product requires installation by a qualified electrician or trained personnel. Always turn off power at the circuit breaker or fuse box before installation or servicing.
- Leia todas as instruções antes de instalar ou usar este produto.
- Do not use this timer with loads exceeding its electrical ratings.
- Certifique-se de que todas as conexões elétricas estejam seguras e em conformidade com as normas elétricas locais e nacionais.
- This device requires a neutral wire for proper operation. If a neutral wire is not present in your switch box, consult a qualified electrician.
- Mantenha as crianças longe da fiação elétrica.
3. Produto acabadoview e Características
The Intermatic EI230W is an electronic in-wall timer designed for ease of use and silent operation. It features a clean white finish to blend with most decor.

Figure 1: Intermatic EI230W Electronic Auto-Off Timer with faceplate.
Principais características:
- Operação simples: Easily select countdown times of 2, 4, 8, or 12 hours with a single button press. No complex programming is required.
- Silent Control: Operates without audible clicking or humming, suitable for quiet environments.
- Aplicações versáteis: Ideal for controlling indoor and outdoor lighting, bathroom fans, ventilation fans, and other appliances.
- Fácil instalação: Designed to replace existing single-pole switches. Requires a neutral wire.
- Acabamento Branco: Aesthetically designed to integrate seamlessly with standard white wall plates.
4. Configuração e instalação
Follow these steps carefully to install your Intermatic EI230W timer. If you are unsure about any step, consult a qualified electrician.
Ferramentas necessárias:
- Chave de fenda (Phillips e Flathead)
- Alicates de decapagem de fios
- Fita isolante
- Volumetage testador
Etapas de instalação:
- Desligar a energia: Locate the circuit breaker or fuse that controls the switch you are replacing. Turn off the power completely. Use a voltage tester to confirm that the power is off at the switch box.
- Remover switch existente: Carefully remove the wall plate and unscrew the existing switch from the electrical box. Gently pull the switch out of the box.
- Identificar os fios:
- LINE (Hot) Wire: Typically black, connected to the incoming power.
- Fio de CARGA: Typically black, connected to the light or appliance.
- NEUTRAL Wire: Typically white. This timer requires a neutral wire.
- Fio terra: Normalmente cobre nu ou verde.

Figura 2: Lateral view of the EI230W timer showing the wiring diagram.
- Conecte o temporizador: Connect the wires from the wall box to the corresponding wires on the EI230W timer using wire nuts.
- Conecte o PRETO wire from the timer to the LINE (Hot) arame.
- Conecte o VERMELHO wire from the timer to the CARREGAR arame.
- Conecte o BRANCO wire from the timer to the NEUTRO arame.
- Conecte o VERDE wire from the timer to the CHÃO arame.

Figura 3: Frente view of the EI230W timer without the faceplate, showing terminals.
- Instale o temporizador: Com cuidado, empurre o temporizador com fio de volta para a caixa elétrica. Fixe-o com os parafusos fornecidos.
- Instale a placa de parede: Fixe a placa de parede decorativa (não incluída) sobre o temporizador.
- Restaurar energia: Ligue a energia novamente no disjuntor ou na caixa de fusíveis.
Vídeo de Instalação:
Vídeo 1: Um excessoview of Intermatic In-Wall Timers, including electronic models similar to the EI230W, demonstrating features like single-button operation, silent control, and ease of installation. This video highlights the simplicity of use and installation for electronic countdown timers.
5. Instruções de operação
The Intermatic EI230W timer is designed for straightforward operation with a single push-button interface.

Figure 4: Front panel of the EI230W timer with time selection buttons.
Configurando o cronômetro:
- Press the main button repeatedly to cycle through the available countdown times: 2 hours, 4 hours, 8 hours, 12 hours.
- The LED indicator next to the selected time will illuminate, confirming your choice.
- The connected load (light, fan, appliance) will turn on and remain on for the selected duration, then automatically turn off.
"HOLD" Function:
- To keep the connected load on indefinitely, press the button until the "HOLD" indicator lights up. The load will remain on until you manually turn it off or select a countdown time.
Turning Off Manually:
- If a countdown time is active or the timer is in "HOLD" mode, press the button until all LED indicators are off. This will turn off the connected load.
6. Manutenção
The Intermatic EI230W Electronic Auto-Off Timer requires minimal maintenance.
- Limpeza: To clean the surface of the timer, use a soft, damp pano. Não utilize produtos de limpeza abrasivos, solventes ou borrife diretamente na unidade.
- Inspeção: Periodically check the timer and wall plate for any signs of damage or loose connections. If any issues are found, turn off the power at the circuit breaker and consult a qualified electrician.
7. Solução De Problemas
If you experience issues with your EI230W timer, refer to the following common problems and solutions:
| Problema | Possível causa | Solução |
|---|---|---|
| Timer does not turn on or operate. | No power to the switch box. Fiação incorreta. Conexões soltas. | Verifique o disjuntor ou fusível. Verify wiring connections according to the installation instructions. Ensure all wires are securely connected. |
| Load does not turn off after selected time. | Timer is in "HOLD" mode. Faulty timer unit. | Press the button until all LEDs are off to manually turn off the load, then re-select a countdown time. Se o problema persistir, entre em contato com o suporte ao cliente. |
| LED indicators are not lighting up. | O temporizador não está recebendo energia. LED com defeito. | Verifique a fonte de alimentação e a fiação. If the timer functions but LEDs do not, contact customer support. |
| Timer makes noise during operation. | This electronic timer is designed for silent operation. Any noise indicates a potential issue. | Turn off power immediately and consult a qualified electrician or contact customer support. |
8. Especificações
- Número do modelo: EI230W
- Marca: Intermatic
- Cor: Branco
- Dimensões do produto: 1.44"P x 1.68"L x 4.13"A
- Peso do item: 0.34 libras (aproximadamente 5.4 onças)
- Número de configurações: 4 (2, 4, 8, 12 hours)
- Código UPC: 078275095298
- Fabricante: Intermatic
- Aprovação: UL (Canadá e EUA)

Figure 5: Dimensions of the EI230W timer.
9. Garantia
Intermatic products are designed for durability and reliability. For specific warranty information regarding your EI230W Electronic Auto-Off Timer, please refer to the documentation included with your purchase or visit the official Intermatic website. Typically, Intermatic offers a limited warranty covering defects in materials and workmanship under normal use and service.
10. Suporte
For further assistance, technical support, or to inquire about replacement parts, please contact Intermatic customer service.
- Fabricante: Intermatic
- Loja online: Visite a loja da Intermatic na Amazon.
- Please have your model number (EI230W) and purchase date available when contacting support.





