BEG 92580 PD4 Ceiling-Mount Presence Detector PIR 2-Channel 230V IP54 White

The BEG 92580 PD4 stands out from conventional occupancy sensors by combining two independent relay channels in a single flush-mount unit. While most detectors only switch lighting, the PD4 simultaneously handles HVAC or presence-based automation, making it a versatile backbone for energy-efficient building control. Its high-resolution PIR lens with 1416 switching segments and 17 detection levels delivers precise movement mapping across a 24-metre diameter at a 3-metre mounting height, reducing false triggers even in demanding environments.

Highlights

• Dual-channel design: separate relays for lighting (10 A) and HVAC/presence (3 A)
• Wide detection area: Ø 24 m (452 m²) at 3 m height, suitable for large rooms and corridors
• Adjustable light threshold: 10–2000 lux for daylight-dependent switching
• Flexible time delays: 10 s–60 min (light) and 10 s–120 min (HVAC), plus pulse mode
• Robust IP54 rating for dusty or damp indoor locations
• Optional remote control for convenient parameter adjustment

In daily use

Installed flush in the ceiling, the PD4 blends into any interior while continuously monitoring occupancy. The lighting channel activates only when natural light falls below the set lux level and movement is detected, then switches off after the chosen delay. The second channel can control ventilation, air conditioning, or signal presence to a BMS, ensuring fresh air and comfort only when spaces are actually used. With a wide operating temperature range from -25 °C to +50 °C, it remains reliable in unheated hallways, warehouses, or technical rooms. The pulse function allows integration with staircase timers or other impulse-controlled systems.

Full specifications

• Detection technology: Passive Infrared (PIR)
• Detection area at 3 m height: Ø 24 m (452 m²)
• Recommended mounting height: 2.5–10 m (optimal 3 m)
• Supply voltage: 230 V AC, 50/60 Hz
• Power consumption: approx. 0.5 W
• Channels: 2 (light, HVAC/presence)
• Light channel relay: potential-free, 230 V AC, 10 A (cos φ = 1)
• HVAC/presence channel relay: potential-free, 230 V AC, 3 A (cos φ = 1)
• Light sensor range: 10–2000 lux
• Time delay light: 10 s–60 min, pulse
• Time delay HVAC: 10 s–120 min, pulse
• IP rating: IP54
• Operating temperature: -25 °C to +50 °C
• Mounting type: ceiling flush mount
• Colour: white
• Detection zones: 1416 switching segments, 17 levels
• Control options: remote control (optional)

Final note

The BEG PD4 is a professional-grade presence detector that goes beyond simple lighting control, offering a complete solution for energy management and room automation in commercial and industrial settings.