# Zooz ZEN78 High Power Relay

*Zooz / ZEN78, ZEN78 800LR*

> The ZEN78 High Power Relay is a Z-Wave relay for 120–240 V loads up to 40 A with energy reporting for watts, kWh, volts and amps. Z-Wave chip: 800 series. It supports Z-Wave Long Range on a hub that supports it. Zooz states compatibility with Home Assistant, Hubitat and SmartThings. It suits SmartThings and Home Assistant users through an integration (Z-Wave).

- Canonical page: https://smarthomecanon.com/devices/zooz-zen78-high-power-relay
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Zooz](https://smarthomecanon.com/brands/zooz) |
| Category | Relay module |
| Model numbers | ZEN78, ZEN78 800LR |
| Status | Current[^1] |
| Type | High power relay[^2] |
| Z-Wave chip | 800 series[^2][^3] |
| Long Range | Yes[^2][^3] |
| Power | 120-240 VAC, 60 Hz[^3] |
| Rating | 40 A, 9600 W resistive[^3] |
| Range | 300 ft line of sight, 1,300 ft with Long Range[^3] |
| Installation | Indoor only (IPX3)[^2][^3] |
| Hubs | Home Assistant, Hubitat, SmartThings[^4] |
| Released | 2025-09[^5] |

## Integration paths

**How the Zooz ZEN78 High Power 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 ZEN78 High Power Relay**

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

## Releases

**Zooz ZEN78 High Power Relay release events**

| Date | Event | Detail |
| --- | --- | --- |
| 2025-09[^5] | Released | Version 1.10, original release. |

## 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)
- [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: ZEN78 High Power Relay (product page). https://www.getzooz.com/zen78-high-power-relay/ (manufacturer, checked 2026-10-13)
[^3]: Zooz Support Center: ZEN78 High Power Relay specs. https://www.support.getzooz.com/kb/article/2277-zen78-high-power-relay-product-manual/ (manufacturer, checked 2026-10-13)
[^4]: Zooz Support Center: ZEN78 High Power Relay compatible hubs. https://www.support.getzooz.com/kb/article/2192-zen78-high-power-relay-compatible-hubs/ (manufacturer, checked 2026-10-13)
[^5]: Zooz Support Center: ZEN78 High Power Relay change log. https://www.support.getzooz.com/kb/article/2194-zen78-high-power-relay-change-log/ (manufacturer, checked 2026-10-13)