Zooz 2 Channel NO & NC Accessory Relay ZAC98 (12-24 V Input)


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Track Signal Input


    • Connect any 12-24 V signal input to trigger a dry contact output (do NOT connect 120 V to the inputs!)
    • NO (normally open) and NC (normally closed) available on both input and output terminals
    • Great for alarm panel or sprinkler system tracking
    • Use it with ZEN16 MultiRelay dry contact inputs for Z-Wave capability
    • 1-year warranty

NOTE: This is NOT a Z-Wave device. You need a compatible Z-Wave relay for wireless control.


Always turn off the power at both the signal input device and the output load device. Use the appropriate wire gauge for voltage used. Connect the low-voltage signal output wires from your low-voltage device to the input terminals on the ZAC98 relay. Connect the controlled load to the input terminals on the ZAC98 relay. Always use the appropriate pair of terminals together (so either NO on both sides or NC on both sides). When using with ZEN16, connect the NO output terminals on the ZAC98 with the Sw terminals on the ZEN16.

Zooz 2 Channel NO & NC Accessory Relay ZAC98 Wiring Diagram



    • Model Number: ZAC98
    • Type: Momentary contact
    • Input Signal: 12-24 V AC/DC (Do NOT connect 120V!)
    • Maximum Load on Output: 1 A with 120 V AC or 3 A at 30 V DC per relay
    • Accepted Wire Gauge: Up to 12 AWG
    • Operating Temperature: 32-104° F (0-40° C)
    • Installation and Use: Indoor only
    • Dimensions: 1.9” x 1.9” x 0.7”


Download the Manual for 2 Channel NO & NC Accessory Relay ZAC98 (PDF)

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Customer Reviews

Based on 4 reviews
Easy to use

Bought a few of these to monitor when my HVAC kicked on. Works really well when paired with the Zooz Zen16.

Chris Wood
Super simple, but powerful

The ZAC98 allowed me to disconnect my old doorbell chimes and detect voltage changes (doorbell presses) silently. Using the Ecolink door/window sensor I receive instant notifications and can choose to chime my speakers or only receive phone notifications when the baby is sleeping. Simple device but a powerful bridge.

Great solution for me. GFC notification

I set this up in my garage on the GFC outlet that my deep freezer is running on. If I trip this circuit hooking up Christmas lights, or the power goes out I get a notification. I have my hub and modem on battery backups, so this works great for me. It was easy to set up just like the power outage kit. Thanks again !! :)

Works great for a doorbell smart conversion

Added this relay and an ecolink contact sensor to my doorbell to receive push notifications when my doorbell is rung in Hubitat.
I tried to use a reed switch but the electromagnetic was not strong enough to consistently trip the sensor. So I added this relay and it works perfectly. No more inconsistency.
A little more bulky than I expected but otherwise works great.