ABB BM/A4.1-133 4-Channel KNX Movement Detector

Description

Introduction

The ABB BM/A4.1-133 is a 4-channel KNX movement detector engineered for high-precision movement, light, and temperature control in indoor and outdoor building automation applications. Operating on 24 V bus voltage via an integrated KNX bus coupler with low power consumption (0.3 W, 12 mA), the device allows direct automated switching of ABB-i-bus KNX actuators. Its optical array features 4 PIR sensors across 110 sectors and 440 switching segments, achieving a 280° sensor angle with up to 16 meters of frontal and lateral detection range. This device is part of our KNX Sensors range.

Built in an IP55-rated housing (dimensions 124mm x 110mm x 158mm) for operating environments between -25°C and 55°C, the device provides flexible alignment including +/- 30° level balancing, +90°/-60° horizontal orientation, and +30°/-30° vertical orientation. When procuring this component for system integration or BOQ (Bill of Quantities) compliance, ensure exact verification of SKU BM/A4.1-133 and review technical documentation on KNXbazzar.com to prevent model mismatch during ordering.

Key Features

• 4 movement channels, 1 twilight/brightness channel (3 switching thresholds), and 1 temperature channel (3 switching thresholds).
• 280° sensor angle with 4 PIR sensors, providing 16m frontal and 16m lateral detection range at 2.5m installation height.
• Integrated KNX bus coupler operating on 24 V bus voltage with 0.3 W power consumption and 12 mA current.
• IP55 protection rating and operating temperature range from -25°C to 55°C.
• Automatic range stabilization, interference suppression, dazzle-proofing, plus ground and rear-field detection.
• Switch-off delay configurable from 10 seconds to 18 hours, with brightness-independent test mode.
• Programmable status RGB LED supporting 5 distinct functions and integrated dismounting protection.

Benefits

• Comprehensive Detection Angle: Features 4 PIR sensors delivering a 280° coverage angle across 110 sectors and 440 switching segments for up to 16m frontal and lateral detection.
• Integrated Environmental Sensing: Includes dedicated channels for twilight/brightness measurement (1 to 100,000 Lux) and ambient outdoor temperature monitoring (-25°C to 55°C).
• Bus-Powered Efficiency: Connects directly via an integrated KNX bus coupler operating at 24 V bus voltage (0.3 W power consumption, 12 mA current), eliminating the need for an external auxiliary power supply.
• Mobile & Smart App Control: Enables remote operation via Bluetooth and the SmartConnect smartphone/tablet app to control up to 10 KNX functions and configure basic operational parameters.
• Flexible Optical Alignment: Offers level balancing of +/- 30°, horizontal orientation of +90°/- 60°, and vertical orientation of +30°/- 30° to target specific zones accurately.

Applications

Outdoor Perimeter Automation: Utilizing its IP55 weather resistance, ground and rear-field detection, and outdoor temperature sensing for building exteriors and access points. Explore more ABB KNX products for professional building automation projects.

Indoor Lighting and Movement Control: Automated switching of ABB-i-bus KNX actuators based on brightness thresholds and movement across four independent channels.

Environmental Monitoring: Measuring ambient lighting levels (1-100,000 Lux) and temperature (-25°C to 55°C) for integration into broader KNX HVAC and lighting logic.

Installation Notes

• Mounting & Position: Recommended installation height is 2.5 meters. Adjust mechanical alignment (+/- 30° level balancing, +90°/-60° horizontal, +30°/-30° vertical) for precise area coverage.
• Wiring & Commissioning: Connect the bus using the enclosed terminal block. ETS programming requires active bus voltage connected to the device.
• Range Customization: Utilize the enclosed cut-to-size protective foil to mask unwanted detection zones, and optionally configure parameters via the ABB SmartConnect app over Bluetooth.

Developer Resources

• Native ETS application required for complete bus integration and parameterization.
• Optional ABB SmartConnect app for Bluetooth commissioning of parameters including switch-off time, brightness threshold, permanent on/off, and test mode.

FAQ

What is the detection range and sensor angle of the ABB BM/A4.1-133?

The BM/A4.1-133 features a 280° sensor angle powered by 4 PIR sensors, providing up to 16 meters of frontal and 16 meters of lateral detection range at an installation height of 2.5 meters. For certificates and current technical files, refer to the official product documentation.

Does the device require a separate power supply?

No additional power supply is required. The device operates directly on 24 V bus voltage via its integrated KNX bus coupler, drawing 12 mA with a power consumption of 0.3 W.

What is the IP rating and operating temperature range?

The device features an IP55 protection class rating and operates in temperatures ranging from -25°C to 55°C.

How are parameters programmed on the detector?

Full configuration requires a native ETS application under connected bus voltage. Additionally, basic settings such as switch-off delay, brightness thresholds, permanent on/off, and test mode can be adjusted via Bluetooth using the ABB SmartConnect app.

What is the exact product model?

The order/model code for this page is BM/A4.1-133. Match it against project documents before purchase.

Who is the manufacturer?

This product is manufactured by ABB.

Conclusion

The ABB BM/A4.1-133 4-channel KNX movement detector provides comprehensive motion, light, and temperature sensing in an IP55-rated package. Featuring a 280° sensor angle, integrated KNX bus coupler, Bluetooth app connectivity, and extensive optical alignment controls, it is an ideal sensor solution for commercial and residential KNX projects. Installers and system integrators can review our KNX dealer program options.

To ensure correct product selection for your BOQ, verify SKU BM/A4.1-133 and review official manufacturer datasheets available on KNXbazzar.com prior to placing your order.