# Zooz ZEN51 Dry Contact Relay

*Zooz / ZEN51*

> The ZEN51 Dry Contact Relay is a small Z-Wave relay that installs behind an existing wall switch or at the fixture. It supports Z-Wave Long Range on a hub that supports it. Zooz states compatibility with Home Assistant, Homey, Hubitat and SmartThings. It suits SmartThings and Home Assistant users through an integration (Z-Wave).

- Canonical page: https://smarthomecanon.com/devices/zooz-zen51-dry-contact-relay
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Zooz](https://smarthomecanon.com/brands/zooz) |
| Category | Relay module |
| Model numbers | ZEN51 |
| Status | Current[^1] |
| Type | In-wall dry contact relay[^2] |
| Z-Wave chip | unknown |
| Long Range | Yes[^2][^3] |
| Power | 120-240 VAC, 50/60 Hz[^3] |
| Rating | 960 W incandescent, 150 W LED, 10 A resistive, 1/2 HP fan motor[^3] |
| Range | 300 ft line of sight[^3] |
| Installation | Indoor only[^2][^3] |
| Hubs | Home Assistant, Homey, Hubitat, SmartThings[^4] |
| Released | unknown |

## Integration paths

**How the Zooz ZEN51 Dry Contact Relay connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Z-Wave](https://smarthomecanon.com/protocols/zwave) | Z-Wave hub or controller[^4] | unknown | unknown |

**Platform support for the Zooz ZEN51 Dry Contact Relay**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Z-Wave | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | Via integration[^4] | Z-Wave JS |
| Z-Wave | [Homey](https://smarthomecanon.com/platforms/homey) | Via integration[^4] | Zooz app for Homey |
| Z-Wave | [Hubitat Elevation](https://smarthomecanon.com/platforms/hubitat) | Native[^4] |  |
| Z-Wave | [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) | Via integration[^4] |  |

## Related pages

- [Zooz relays](https://smarthomecanon.com/lines/zooz-relays) (line)
- [Zooz](https://smarthomecanon.com/brands/zooz) (brand)
- [Z-Wave](https://smarthomecanon.com/protocols/zwave) (protocol)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)
- [Homey](https://smarthomecanon.com/platforms/homey) (platform)
- [Hubitat Elevation](https://smarthomecanon.com/platforms/hubitat) (platform)
- [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) (platform)

## Sources

[^1]: Zooz: product portfolio. https://www.getzooz.com/products/ (manufacturer, checked 2026-10-13)
[^2]: Zooz: ZEN51 Dry Contact Relay (product page). https://www.getzooz.com/zooz-zen51-dry-contact-relay/ (manufacturer, checked 2026-10-13)
[^3]: Zooz Support Center: ZEN51 Dry Contact Relay specs. https://www.support.getzooz.com/kb/article/969-zen51-dry-contact-relay-specs/ (manufacturer, checked 2026-10-13)
[^4]: Zooz Support Center: ZEN51 Dry Contact Relay compatible hubs. https://www.support.getzooz.com/kb/article/939-zen51-dry-contact-relay-compatible-hubs/ (manufacturer, checked 2026-10-13)