NSI EWZ103 front view timer for indoor/outdoor reliability.
NSI EWZ103 digital display showing weekly on/off cycles.
NSI EWZ103 Noryl enclosure highlights weather-resistant housing.
NSI EWZ103 locking hasp secures outdoor installations.
NSI EWZ103 DPST contacts handle up to 40A.
NSI EWZ103 wall-mount capability for external installation.
NSI EWZ103 terminal block accepts #8–#16 wires.
NSI EWZ103 backup capacitor preserves settings during power loss.
NSI EWZ103 outdoor-ready timer supports lighting and motors.

NSI

NSI EWZ103 7-Day Astronomic Time Switch — 120-277 VAC, 40A DPST, Outdoor

High-performance tools and home improvement made for confident daily results

$160.52

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Why customers choose TaskHolt Tools

Overview

The NSI EWZ103 is a digital, seven‑day time switch designed to automate daily schedules for lighting, heaters, and small motors. It accepts 120–277 VAC input and automatically detects the supply voltage, simplifying setup. Its single DPST output can drive loads up to 40 A or a 2 hp motor, enabling versatile control from a single device. With 20 on/off point pairs each day and a minimum cycle of one minute, you can tailor operation to fit individual routines without constant adjustments.

Core capabilities

  • Automatic on/off control with a 7‑day, 24‑hour planning horizon
  • 20 daily on/off cycles and a one‑minute minimum cycle for precise scheduling
  • Automatic adjustments for daylight saving time, leap year, and sunrise/sunset based on latitude
  • 120–277 VAC input with automatic voltage detection
  • Noryl enclosure with indoor/outdoor suitability and a lockable hasp

Usage scenarios

  • Outdoor and indoor lighting control for pathways, facades, landscapes, and security areas
  • Heating or climate control routines in rooms, shops, or equipment spaces
  • Small equipment motors in manufacturing, workshops, or maintenance applications

Durability and reliability

  • Rugged Noryl enclosure rated for indoor and outdoor use with water resistance
  • Locking hasp for secure installations and external surface mounting
  • UL Listed and CSA certified for quality assurance
  • Rechargeable super capacitor backup preserves time and schedules for several days

Whether you are refining daily routines, aligning outdoor lights with dusk, or coordinating equipment start/stop times, the EWZ103 offers flexible control without overpromising outcomes. Consider it as a dependable tool to streamline routine operations and help maintain consistent schedules across varied environments.

FAQ

Q: What can the NSI EWZ103 time switch control?

A: The EWZ103 automates lighting, heaters, and small motors with DPST contacts up to 40A at 120–277 VAC.

Q: Will settings survive a power interruption?

A: Yes. A rechargeable super capacitor backs up the clock for up to four days, preserving schedules.

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