Shelly Wave i4 DC – Z-Wave 4-Input Scene Controller (5–24V DC)
Overview
Shelly Wave i4 DC is a Z-Wave input controller designed to turn up to four physical switch inputs into smart triggers for automations, scenes, and device control. It does not contain relays and does not switch a load directly — instead, it reports input events (including multi-press patterns) to your Z-Wave network so you can control other devices or trigger routines from a wall switch or button panel.
Key Features
• 4 digital inputs for reading switch or push-button actions
• Input reader only — no relays and no direct load switching
• Supports multi-action control per input (short, long, and double press)
• Can trigger up to 12 actions/scenes total (up to 3 actions per input)
• Supports Z-Wave associations for direct device-to-device control (up to 2 associations per button)
• Extremely low power consumption (< 0.3 W)
• Z-Wave 800 Series (S800) chipset
• SmartStart for simplified inclusion
• OTA firmware updates via compatible Z-Wave hubs
• Security 2 Authenticated (S2)
Technical Specifications
Power
Power Supply: 5–24 V DC
Power Consumption: < 0.3 W
Z-Wave
Protocol: Z-Wave Plus
Frequency Band (UK/EU): 868.4 MHz
Chipset: Z-Wave S800 (800 Series)
Security: S2 Authenticated
Repeater Function: Yes
Typical Indoor Range: Up to 40 m (environment dependent)
Max RF Power: < 25 mW
Inputs
Number of Inputs: 4
Physical
Dimensions: 42 × 37 × 16 mm
Terminal Torque: 0.4 Nm
Conductor Size: 0.5–1.5 mm²
Conductor Strip Length: 5–6 mm
Environmental
Operating Temperature: -20 °C to 40 °C
Humidity: 30–70% RH
Installation Notes
• Designed for low-voltage DC power (5–24 V DC) — no AC supply support
• Input device only: it reads switch/push-button states and triggers Z-Wave actions; it does not switch mains loads
• Requires a compatible Z-Wave hub for configuration (not included)
• Associations can be used for direct control of other Z-Wave devices after setup (hubless triggering depends on the target device and association support)
• Typically installed behind wall switches or inside low-voltage enclosures where compact size matters
• Choose switch type and multi-press behaviour in your Z-Wave controller configuration