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4-Channel LED/OC Module
Four-channel PWM LED module for constant voltage. Outputs configurable as 4 independent channels, 2 channels for tunable white, or 1 RGBW channel.
| Category: | Control unit and IO modules |
|---|---|
| EAN: | 8586022930416 |
| The item has been sold out… | |
Why Choose 4-Channel LED/OC Module?
- 3 modes in one – open collector output, LED dimmer or RGB/RGBW
- Ideal for smaller projects – 4 powerful channels at a fraction of the cost of a larger module
- Space saving – only 2 modules on DIN rail
Features
- 4 LED/OC outputs (open collector) configurable as:
- Open collector output – digital outputs
- LED dimmer – works with constant voltage LED lights (e.g., LED strips), frequency adjustable up to 25 kHz (default 587 Hz)
- Tunable white – 2 dimmed outputs for LED strips with warm and cool white
- RGB/RGBW – 3 or 4 outputs for full colour spectrum
- Electrical parameters:
- Maximum current: 6 A DC per channel
- Maximum total load: 16 A
- Maximum voltage: 28 V DC per channel
- Recommended cable length between light and module:
- 30 m for 1.5 mm² cable
- 45 m for 2.5 mm² cable
- Protection class IP20, operating temperature: -20 °C to +55 °C
- Maximum power dissipation: 3 W
- Power supply: 24 V DC ±10%
- Communication: TapHome Bus (connection to Core unit)
- Terminal type: Screw terminals
Protection Features:
- Thermal protection – overheated output is automatically switched off (each output has its own temperature sensor)
- Short-circuit protection – electronic protection for all outputs
- Signal terminals (3.50 mm):
- Wire cross-section: 0.14–1.5 mm² (AWG 30–14)
- Torque: 0.2–0.25 Nm
- Strip length: 6.5–7.5 mm
- Power terminals (6.35 mm):
- Wire cross-section: 0.34–4.0 mm² (AWG 26–10)
- Torque: 0.5 Nm
- Strip length: 7.2 mm
- DIN rail mounting, 2 modules. Dimensions: width 36 mm, height 59 mm, depth 60 mm
Installation Note: Long supply cables create voltage spikes (parasitic inductance) that stress the module input.
- Supply cable from source to module: max. 1–1.5 m at full power
- Output cable to LED: no limitation
- Post-installation check: set 95% power, after 30 min. check temperature in service settings – max. 55–60°C
- Installation outside DIN rail: use a local power supply near the module
- Same phase required: LED power supply and TapHome power supply (+24V/GND) must be on the same phase
Load Calculation Example
For 24V LED strip with 12 W/m power consumption:
- Current per metre: 12 W / 24 V = 0.5 A/m
- Maximum strip length per output: 6 A / 0.5 A/m = 12 m
- For longer strips, use multiple outputs
- For RGB/RGBW strips, divide total power by 3 or 4
Total module capacity: 16 A × 24 V = 384 W, corresponding to maximum 32 m of LED strip with 12 W/m power consumption.
Wiring Recommendations
LED Power Connection
The LED power supply must have both V+ and V− connected directly to the module. Do not connect V+ directly to the terminal block – current must flow through the module for protection and dimming to work.
Load Distribution at Higher Power (WW)
At higher power, distribute the + wire of LED strips among individual UO terminals on the output. This prevents terminal overheating and ensures output protections work correctly.
Load Distribution at Higher Power (RGBW)
For RGBW wiring, distribute the common + wire of strips to separate UO+ terminals. Even current distribution extends lifespan and improves protection circuit effectiveness.
Comparison with Other Modules
| Feature | 4 LED/OC | 12 LED/OC | 4 Dim |
|---|---|---|---|
| Voltage | 24 V DC | 24 V DC | 230 V AC |
| Channels | 4 | 12 | 4 |
| Max. current/channel | 6 A | 4 A | 100 VA |
| Best for | Small LED projects | Large RGBW installations | Traditional bulbs |
| Connector | Color | Wire | AWG | Torque | Strip | Pins |
|---|---|---|---|---|---|---|
| Outputs | Grey | 0.14–1.5 mm² | 30–14 | 0.2–0.25 Nm | 6.5–7.5 mm | UO1+, UO1−, UO2+, UO2−, UO3+, UO3−, UO4+, UO4− |
| LED Supply | Grey | 0.34–4 mm² | 26–10 | 0.5 Nm | 7.2 mm | V+, V− |
| Power | Red | 0.14–1.5 mm² | 30–14 | 0.2–0.25 Nm | 6.5–7.5 mm | +24V, GND |
| Bus | Blue | 0.14–1.5 mm² | 30–14 | 0.2–0.25 Nm | 6.5–7.5 mm | Bus A, Bus B |
