The PT18H‑W‑K is a professional‑grade, 5‑button preset hour‑based programmable timer designed by Cooper Wiring Devices (Eaton). Engineered for dependable lighting and fan control, this timer delivers automatic shutoff after the selected duration—perfect for preventing lights and ventilation systems from running longer than necessary. Built to replace any standard single‑pole wall switch, this unit is ideal for energy‑efficiency upgrades in homes and light‑commercial spaces.

This universal‑load electronic timer handles up to 15A (1800W) at 120V AC, compatible with incandescent, halogen, CFL, LED, electronic low‑voltage, magnetic low‑voltage, and even 1/4‑HP motor loads. The PT18H‑W‑K requires no neutral wire, making it retrofit‑friendly for older electrical systems. Its illuminated pushbuttons display timer selection and countdown progress, while a subtle locator LED helps users find the switch in low‑light environments.

With customizable presets, easy operation, and durable construction, the PT18H‑W‑K provides exceptional automation for bathrooms, garages, closets, laundry rooms, hallways, and utility areas—anywhere lights or fans tend to be left on unintentionally.

Key Features

• Five Preset Hour Intervals: Offers user-selectable 1, 2, 4, 8, and 12‑hour countdown settings for convenient automated shutoff. 
• Automatic Turn‑Off Function: Eliminates wasted energy by shutting off lights or fans after the selected duration has elapsed. 
• No Neutral Required: Allows fast installation in both new construction and retrofit applications without rewiring. 
• Supports All Major Load Types: Compatible with incandescent, halogen, fluorescent, compact fluorescent, LED, MLV, ELV, and motors up to 1/4 HP. 
• LED Indicators: Displays selected preset and active countdown; includes a locator LED for visibility in darkness. 
• Programmable Modes: Offers both quick setup and advanced custom timing adjustments to tailor operation to user needs. 
• Manual Bypass Mode: Converts the timer into a standard ON/OFF switch when countdown timing is not required. 
• Decorator‑Style Face & Optional Color Kits: Features a removable faceplate compatible with optional color‑change kits for matching interior finishes. 
• Durable Construction: Built with robust thermoplastic materials and a steel support strap for long service life. 

Specifications

• Type: 5‑button hour timer (single‑pole)
• Electrical Rating: 15A, 120V AC, 60 Hz, up to 1800W 
• Motor Rating: Up to 1/4 HP 
• Preset Buttons: 1, 2, 4, 8, 12 hours 
• Load Compatibility: Incandescent, halogen, MLV, ELV, fluorescent, CFL, LED 
• Neutral Requirement: None (single‑pole, 2‑wire + ground) 
• Mounting: Fits standard decorator wallplates
• Construction: Polycarbonate housing with galvanized steel strap 
• Color: White (W‑K designation)
• Certifications: cULus Listed, UL 60730, NOM compliant 

Applications

The PT18H‑W‑K is ideal for installations where improved automation, energy savings, and convenience are desired:

Residential

• Bathrooms and powder rooms
• Laundry rooms
• Closets and storage spaces
• Garages and workshops
• Hallways and utility areas

Light Commercial

• Small offices
• Break rooms
• Storage or maintenance rooms
• Utility and janitorial spaces

Energy‑Saving Benefits

• Ensures lights and fans aren’t left on for extended periods
• Helps maintain proper air circulation timing
• Reduces unnecessary electrical load and extends device lifespan