Helvar 311M Ceiling PIR Detector – IP55 & –30 °C Certified

311M Technical Data

Connections

External power / DALI: Removable connector block;
Wire size: 0.5 mm² – 1.5 mm² solid or stranded

Cable rating: All cables must be mains rated.
Max. length: 300 m @ 1.5 mm²

Power

DALI supply input: 13 V to 22.5 V
DALI consumption: 15 mA

Sensors

Presence detector: PIR: Passive infrared presence detector
Infrared receiver: For remote control commands. Note: Adjust sensitivity using Designer or Toolbox (not by remote control unit).

311M Mechanical data

Mounting hole diameter: 68 mm
Bezel diameter: 76 mm
Material (casing): Flame-retardant ABS
Finish / Colour: Matt / White RAL 9003
Weight: 58 g
IP code: 311: IP40
311P*: IP55
311M*: IP55
* Only when the supplied gasket is used and the unit is mounted onto Helvar’s SBB-P back box or flush in a ceiling.

311M Operating conditions

Ambient temperature: 311 & 311P: 0 °C to +35 °C 311M: –30 °C to +35 °C
Note: The temperature difference between the detection target and the background must be at least 4 °C.
Relative humidity: Max. 90 %, noncondensing
Storage temperature: 311 & 311P: –10 °C to +70 °C 311M: –30 °C to +70 °C

311M Conformity and standards

EMC emission: EN 61000–6–1
EMC immunity: EN 61000–6–3
Safety: EN 60730–1
Environment: Complies with WEEE and RoHS directives.

Version information

Software version: 6.08
Hardware version: Rev. 2

311M Installation

All versions of the Detector can be mounted into a ceiling or wall void, or onto a solid surface using a back box.

The standard version (311) can be mounted onto Helvar’s SBB-A back box, whereas the 311P and 311M versions need to be mounted onto Helvar’s fully sealed SBB-P back box to maintain the IP rating.

When mounting the 311P and 311M versions, the supplied silicone gasket must always be used.

Passive Infrared (PIR) lighting sensors detect motion by identifying changes in infrared radiation (heat) emitted by moving objects, such as people or vehicles. They automatically turn lights on when motion is detected and off after a set time, offering energy efficiency and enhanced security for indoor/outdoor spaces.

Key Features & Functionality

Heat Detection: PIR sensors do not emit energy but detect heat-emitting bodies moving across their field of view.

How They Work: They use two pyroelectric elements to detect changes in heat, triggering a relay to activate the light.

Fresnel Lens: A lens is used to focus infrared energy, increasing the sensor’s range.

Adjustable Settings: Many PIR sensors allow adjustment of the “on” time and sensitivity to light levels.

Advantages

Energy Efficiency: Lights only turn on when necessary.

Security: Deters intruders by illuminating areas suddenly.

Convenience: Provides hands-free lighting for walkways, driveways, and rooms.

Typical Applications & Types

Locations: Commonly used in gardens, security floodlights, porches, and hallways.

Ranges: Typically have a range of up to 10-30 meters with a 180° to 360° detection angle.

Versatility: Available as integrated fixtures (floodlights, wall lights) or standalone units.

Daylight Harvesting: Advanced sensors can detect ambient light, ensuring they don’t turn on during the day.

At Helvar they create intelligent and energy-saving lighting solutions.

Their Intelligent lighting is essential for the wellbeing of employees, customers, visitors, patients… and you! By combining smart data and reporting tools, and working together seamlessly with other manufacturers systems, Helvar’s solutions help to create smart environments built for the future.

Their products are regarded as best-in-class for reliability, compatibility and flexibility. With an extensive selection of advanced lighting solutions and components, they are unmatched when it comes to saving energy and enhancing comfort and mood.

From providing remote monitoring and maintenance, to using data to predict energy savings or to lower running costs by integrating to other building systems, their service offerings support buildings throughout their entire life cycle.

The company was originally set up in 1921 by Mr Walter Grueling and Mr Bengt Nybom. A century later, Helvar Oy Ab is now one of the global leaders in intelligent lighting solutions, with a world-class hybrid offering of wired- and wireless- control solutions, as well as a powerful platform of digital services.

Their mission is to Turn Everyday Places into Brighter Spaces; spaces which are perfectly functional, intelligent and designed for the future. Helvar is headquartered in Finland, with regional offices in Sweden and the United Kingdom, and we work closely with a network of over 80 expert partners across the world.

Helvar’s luminaire components division now operates as an independent manufacturer, producing world-class LED drivers and lighting components under the Helvar Components name.
As the company ventures into the next 100 years, the ‘Helvar spirit’ continues to live on– combining a passion for sustainability, customer closeness, a hardworking attitude and first-class industrial know-how into an ever-growing and successful team.