Z-Wave On / Off Light Switch (ZEN21) manual for Z-Wave

The following is an overview of the user manual for the Z-Wave product Z-Wave On / Off Light Switch (ZEN21)from Zooz. To view other Z-Wave products and manuals from Zooz follow that link.

  1. Overview
  2. Security
  3. Features
  4. Installation instructions


Zooz Z-Wave On / Off Light Switch
SKU Code
- Manual or remote on/off control from your mobile device or computer (when included to a Z-Wave gateway controller)
- Z-Wave Plus with improved 500 chip for faster and safer wireless communication
- Works with LED, CFL, and incandescent bulbs
- Based on universal binary switch command class - supported by most Z-Wave controllers
- May be associated and grouped with other Z-Wave devices for advanced home automation
- Simple elegant design with screwless snap-on wall plate included
- Built-in Z-Wave signal repeater for a stronger and more reliable network
- Single pole installation only, neutral wire required

Model Number: ZEN21
Z-Wave Signal Frequency: 908.42 MHz
Power: 120 VAC, 60 Hz
Maximum Loads: 960W Incandescent, 1800W (15A) Resistive, ½ HP Motor
Range: Up to 100 feet line of sight between the Wireless Controller and the closest Z-Wave receiver module
Operating Temperature: 32-104° F (0-40° C)
Installation and Use: Indoor only
Version #
HW: 1 FW: 20.15 was the version certified
Certification #
Z-Wave Version


As a Z-Wave Plus certified product, Z-Wave On / Off Light Switch supports Z-Wave S2 security. The following security modes are directly supported:


    Zooz describes Z-Wave On / Off Light Switch as having the following features:

    • Color
    • Electric Load Type
    • Switch Load Capacity Current
    • Switch Load Capacity Watts
    • Neutral Wire Required
    • Switch Type
    • FLiRS capable
    • Supports Network Wide Inclusion
    • Supports Z-Wave Explorer Frames
    • Supports Z-Wave SmartStart allowing you to setup the product simply by scanning its QR code via

    Installation instructions

    1. Bring your Z-Wave gateway hub or controller as close to the switch as possible
    2. Put your Z-Wave controller in exclusion mode
    3. Tap the switch on and off quickly 3 times to complete the exclusion process
    4. The device should disappear from your controller's device list

    Please repeat the process following all steps carefully if the first attempt is unsuccessful

    1. Bring your Z-Wave gateway hub or controller as close to the switch as possible
    2. Put your Z-Wave controller in inclusion mode
    3. Tap the switch on and off quickly 3 times to finalize the inclusion process
    4. A new on/off device should appear on your controller's device list

    Troubleshooting Tips:
    If you are unable to include the Z-Wave switch to your controller, please try one of the following:
    - Bring the controller closer to your Z-Wave switch or use a hand-held secondary controller for inclusion
    - Tap your Z-Wave switch quicker 4 or 5 times once you put the controller in the inclusion mode to ensure the command has gone through
    - Put your controller in the EXCLUSION mode and tap the switch quickly 3 times, then try adding it to your network again

    Factory reset Z-Wave On / Off Light Switch

    The switch will be reset to factory defaults only by exclusion using a Z-Wave controller. You may use any certified Z-Wave controller to exclude and reset the switch. This device may not be reset manually when the network’s primary controller is missing or otherwise inoperable. NOTE: All previously recorded activity and custom settings will be erased from the device’s memory.

    Please note that this is a user manual Z-Wave On / Off Light Switch from Zooz is provided as is and without warranty; all information contained herein is provided by the manufacturer or the certifying body. The information provided is for reference only and is not intended to be used as a substitute for professional advice. ZWaveProducts.com only warrants and is only able to support products purchased directly from us. If you have Z-Wave On / Off Light Switch and have not purchased it from us, please contact the manufacturer directly with any further questions you may have.