N 535D51 KNX Switching Actuator 8-Channel 16A/20AX C-Load with Integrated Load Check 5WG1535-1DB51
The N 535D51 is an advanced modular Load Check Switching Actuator specifically engineered for high-performance building automation systems utilizing the open standard protocol. Equipped with 8 high-durability independent outputs, this device provides a centralized intelligence hub for controlling lighting circuits, solar protection, and HVAC components.
Its robust hardware architecture is designed to handle complex load profiles, while the DIN-rail mountable form factor ensures seamless integration into professional electrical panels. The device offers precise execution of switching commands with real-time status feedback, enabling building operators to maintain optimal environmental conditions while significantly reducing energy overhead.
With maintenance-free PUSH-IN terminals and integrated manual override capability, the N 535D51 simplifies field installation and provides essential manual control for commissioning and emergency scenarios. It is a key component for modern smart buildings requiring modular scalability and industrial-grade reliability.
| Product Model | N 535D51 |
|---|---|
| Ordering Reference | 5WG1535-1DB51 |
| Communication Protocol | Standard System Bus (S-Mode / PL-Link) |
| Number of Channels | 8 Potential-free Outputs |
| Rated Voltage | AC 230 V, 50/60 Hz |
| Rated Current per Channel | 16 A / 20 AX |
| Load Compatibility | 200 uF High Inrush C-Load |
| Control Power | Bus-powered (DC 24-30 V SELV) |
| Current Consumption | approx. 10-15 mA from bus |
| Terminal Capacity | 0.5 to 2.5 mm² (PUSH-IN / Screw type) |
| Mounting | DIN Rail TH35 (EN 60715) |
| Operating Temperature | -5 to +45 °C (+23 to +113 °F) |
| IP Rating | IP20 (EN 60529) |
- Integrated AND/OR/XOR logic functions
- On/Off delay timing controls
- Staircase lighting with pre-warning
- Scene recall (up to 8 scenes)
- Load current detection with threshold monitoring per channel
- Housing material: Halogen-free, flame-retardant plastic
- Certifications: Standard Industry Compliance, CE, RoHS, WEEE
In large-scale commercial office buildings, the N 535D51 serves as the primary switching node for daylight-responsive lighting control, managing multiple zones based on central occupancy schedules or sensor inputs. Its high C-load rating makes it exceptionally effective for switching modern LED drivers and high-efficiency fluorescent fixtures that generate significant inrush current spikes.
In premium hotel room management systems, the actuator coordinates lighting scenes, corridor status indicators (DND/MUR), and bathroom ventilation, ensuring a quiet and seamless guest experience. Industrial facilities utilize the N 535D51 for precise fan speed switching in AHU units and pump enable/disable control, with the integrated manual override allowing for safe local maintenance without laptop access.
For retail environments, the device provides the BMS with reliable status feedback for power analytics and preventive maintenance scheduling, ensuring uninterrupted operational continuity.
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