Gecko YJ3 Control pack
Gecko YJ3 Control pack
SKU:KK-11184
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Gecko YJ3 Control Pack has replaced YJ2
Gecko IN.YJ3 V3 Control Box
The Gecko in.yj-3-V3 control system, the successor to the V2 version, is designed for small spas, offering enhanced functionality and greater flexibility. While maintaining the core features of its predecessor, the V3 version introduces LED indicators for troubleshooting and integrates the in.mix system for advanced light management.
This system is paired with the heat.wav.yj heater and comes equipped with three 230V relays, indicated by the number "3" in its name, allowing it to manage up to three spa components (note that a two-speed pump requires 2 relays).
Features:
Compact Design: The in.yj-3-V3 is exceptionally compact, making it perfect for tight installation spaces. It can even be mounted in a "portrait" orientation, adding versatility to its placement.
Common Relay Configurations:
The system also includes:
Configuration is straightforward, done through the keyboard by selecting one of the pre-programmed options. If you have any questions about the setup or specific configurations, feel free to contact us for assistance.
Control Box (IN.YJ-3 V3)
| Specification | Value |
|---|---|
| Dimensions (W x H x D) | 308mm x 186mm x 96mm |
| Enclosure Material | High-impact plastic |
| IP Rating | IPX5 (watertight) |
| Heater Connection | 2" socket union sleeves |
| Mounting Options | Portrait or landscape orientation |
| Operating Temperature | 0°C to 58°C (32°F to 136°F) |
| Storage Temperature | -25°C to 85°C (-13°F to 185°F) |
| Humidity Range | Up to 85% RH, non-condensing |
Topside Panel (IN.K300)
Compatible Models:
| Panel Model | Compatible | Notes |
|---|---|---|
| IN.K8 | ✅ Yes | 8-key overlay panel |
| IN.K200 | ✅ Yes | LED display, 4 keys |
| IN.K300 | ✅ Yes | LCD display, 4 keys (included) |
| IN.K336 | ✅ Yes | Colour LCD, 5 keys |
| IN.K450 | ✅ Yes | LCD display, 7 keys |
| IN.K500 | ✅ Yes | Colour LCD, 7 keys |
| IN.K600 (simplified) | ✅ Yes | LCD display, simplified interface only |
| IN.K800 | ✅ Yes | Colour LCD, 10 keys |
| IN.K1000 / IN.K1001 | ✅ Yes | Colour LCD capacitive touchscreen |
Auxiliary Keypad
| Panel | Compatible | Notes |
|---|---|---|
| IN.K120 | ✅ Yes | Auxiliary keypad for secondary location |
in.touch 3 Compatibility
| Control System | Compatible |
|---|---|
| IN.YJ V2 | ✅ Yes |
| IN.YJ V3 | ✅ Yes |
| IN.YE V2/V3 | ✅ Yes |
| IN.YT V2 | ✅ Yes |
Control box IN.YJ IN.YJ-3

Electrical Requirements
| Requirement | Specification |
|---|---|
| Supply Voltage | 230V AC nominal |
| Frequency | 50 Hz |
| RCD | Maximum 30mA residual current |
| Single-Phase | Up to 40A max |
| Dual-Phase | Up to 20A max per phase |
| Bonding | Copper conductor to bonding lugs |
Mounting Options
The IN.YJ-3 can be mounted in two orientations:
- Landscape - Standard horizontal mounting
- Portrait - Vertical mounting for narrow spaces
This is the most compact GECKO control box. It can control all small spas with one 2-speed pump. This control box works with the Heat.wav-yj heater (sold separately).

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