The PT18M‑W‑K from Cooper Wiring Devices (Eaton) is a high‑performance 5‑button preset minute timer engineered to automatically control lighting and fan loads with precision and reliability. Designed to replace a standard single‑pole wall switch, this timer allows users to select from multiple preset countdown intervals, ensuring that lights or ventilation fans turn off automatically after the desired duration—perfect for reducing energy consumption and preventing accidental overuse of electrical loads.

With a rugged thermoplastic construction, LED indicator system, and compatibility with nearly every common residential and commercial load type, the PT18M‑W‑K provides a reliable and efficient control solution. The device requires no neutral conductor, making it ideal for renovation projects and older buildings. Its universal load compatibility supports incandescent, low‑voltage, fluorescent, CFL, LED, and motor loads up to 1/4 HP. The clean white finish integrates seamlessly into modern interiors and decorator‑style wallplates.

Whether you're upgrading a bathroom exhaust fan, adding timed lighting to utility spaces, or seeking energy‑saving automation throughout your home, this programmable timer delivers dependable performance with user‑friendly operation.

Key Features

• Five Preset Minute Intervals: Provides selectable countdowns of 5, 10, 15, 30, and 60 minutes for automated shutoff of connected loads. 
• Automatic Turn‑Off: Prevents lights or fans from running longer than necessary, improving energy efficiency and extending equipment life. 
• No Neutral Required: Installs easily in retrofit locations where neutral wiring is unavailable. 
• Universal Load Compatibility: Supports incandescent, magnetic low‑voltage, electronic low‑voltage, fluorescent, compact fluorescent, LED, and 1/4‑HP motor loads. 
• LED Indicators: Displays the selected time preset, countdown status, and a warning flash when approaching shutoff. 
• Programmable Timing Options: Includes both quick‑set programming and advanced custom interval programming. 
• Bypass Mode: Allows the timer to function as a standard ON/OFF switch when timing is not needed.
• Removable Faceplate: Compatible with optional color‑change kits for versatile décor matching. 
• Durable Construction: Built with a tough thermoplastic body for long‑lasting reliability in busy environments. 

Specifications

• Timer Type: 5‑button programmable minute timer
• Electrical Rating: 15A, 120V AC, 60 Hz (up to 1800W) 
• Preset Time Values: 5, 10, 15, 30, 60 minutes 
• Load Compatibility: Incandescent, halogen, LED, CFL, fluorescent, MLV, ELV, and 1/4‑HP motors
• Neutral Requirement: None (2‑wire + ground) 
• Mounting: Fits standard decorator‑style wallplates
• Construction: Thermoplastic housing; galvanized steel or similar strap (varies by model listing)
• Color: White (“W‑K” suffix)
• Certifications: cULus Listed; UL 60730; NOM compliant 

Applications

Residential

• Bathrooms
• Laundry rooms
• Closets
• Garages
• Utility rooms
• Hallways

Light Commercial

• Office restrooms
• Storage areas
• Break rooms
• Janitorial closets

Energy & Safety Benefits

• Eliminates wasted energy from lights or fans left running
• Helps maintain proper timed ventilation in moisture‑prone areas
• Reduces wear on fans and lighting systems