The ZEN58 XS Low Voltage Relay is the newest addition to the Zooz relay family, designed for low-voltage, extra-compact installations where space is limited and precise control is needed. This relay offers flexible integration with a wide range of systems thanks to its low-voltage power requirements and fully isolated dry contact switching.
Technical Overview
| Feature | ZEN58 |
|---|---|
| Power Supply | 9-40V AC or DC |
| Relay Type | Dry Contact (0-240V) |
| Control Input | Dry Contact Switch (no voltage!) |
| Terminal Type | Block terminals for DC+/DC- and IN/OUT |
| Pigtail Wires | 2x dry contact input wires |
| Z-Wave Behavior | Displays as an on/off switch |
| Advanced Features |
Optional separation of input/output functions, child device via Notification CC |
Installation Details
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Recommended Power Supply: 12V or 24V DC or AC transformer.
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Relay Load (Dry Contact OUT): Max 0-240V (pass-through only; no voltage supplied by the relay).
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Dry Contact Input (Pigtails): For use with passive (non-voltage) switches only.
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Enclosure: Suitable for compact enclosures; fits in junction boxes, panels, or wall cavities with limited space.
⚠️ Important: Do NOT apply voltage to the dry contact input wires. They are intended for passive switching only.
Common Use Cases
The ZEN58 is ideal for applications where low-voltage control is required and where a fully isolated dry contact relay is a must. Here are some practical use cases:
1. Garage Door Opener Integration
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Control the momentary switch terminals of a garage door opener using the dry contact relay output.
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Use the dry contact input to monitor wall button presses (if accessible and dry contact).
2. Gas Fireplace Control
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Safely control a gas fireplace system that uses a dry contact input for on/off activation.
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Provides smart scheduling or remote control without introducing voltage to the fireplace circuit.
3. Gate or Access Control Systems
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Easily powered by the 12V or 24V power supply already present in most access control panels.
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Safe and isolated control over electric gates, buzzers, or magnetic locks via dry contact.
4. Boiler, HVAC, or Thermostat Systems
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Trigger thermostats or zone valves that rely on dry contact inputs.
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Power directly from low-voltage transformer (common in these systems).
5. Alarm Panel Integration
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Ideal for sending signals to or receiving triggers from alarm panels with dry contact inputs/outputs.
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Allows smart home automations based on physical events.
6. Button or Keypad Triggers
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Use with a dry contact push-button or keypad to trigger smart automations via Z-Wave (no voltage passing through the button).
Comparison: ZEN58 vs. ZEN51
While both relays offer dry contact switching, they are designed for different installation environments. Here are the key differences:
| Feature | ZEN58 | ZEN51 |
|---|---|---|
| Power Supply | 9-40V AC/DC | 24-240V AC only |
| Relay Output | Dry Contact | Dry Contact |
| Input Control | Dry Contact Switch (no voltage!) | S pigtail (switches with voltage) |
| Input Type | Dry, passive | Wet, voltage-based |
| Size | Extra small | Compact |
| Use Case | Low-voltage or fully isolated systems |
Line-voltage powered, voltage-based control |
Advanced Configuration
The ZEN58 includes the same functionality as the ZEN16 MultiRelay and ZEN17 Universal Relay for increased flexibility, allowing you to separate the input from the output:
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Separate Input from Output: Configure the device so that input status doesn't trigger the relay directly.
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Child Device via Notification Command Class: Use the dry contact input as a trigger for automations independently of relay operation.
These settings can be configured via your Z-Wave hub’s advanced parameter panel. Refer to your hub’s documentation or our ZEN58 settings guide for details.
Final Notes
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The ZEN58 is designed for systems that require isolation between control input and output.
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It is not a voltage switch — both relay and input are dry contact only.
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Make sure your power supply falls within the 9-40V AC/DC range to avoid damage to the unit.
For wiring diagrams, hub compatibility, and advanced automation tips, visit our ZEN58 support page or contact us directly for personalized help.
