General
Type of motor	Electronically commutated outer rotor motor
Protection functions	Electronic reverse polarity protection, impedance protection
Housing material	PBT
Impeller material	PA
Air flow	blowing over bridges
Direction of rotation	left (viewed from rotor)
Connection	2 single stranded wires AWG 28, TR 64
Stranded wire ends	stripped and tinned

The product is a DC fan from the brand PAPST, designed for integration into technical device concepts. It features brushless motor technology with an electronically commutated outer rotor motor, ensuring high operational reliability and low maintenance requirements. The commutation electronics are fully integrated into the fan, enabling a compact design. The fan is equipped with an electronic reverse polarity protection, ensuring it can only be operated with correct polarity. This prevents damage caused by incorrect power supply. Additionally, an impedance protection safeguards the fan against blockages and overloads, increasing its lifespan and ensuring reliable performance.

Applications
This fan is suitable for use in electronic devices and technical systems where targeted cooling is required. Due to its brushless technology and integrated protection functions, it is particularly suitable for applications demanding high operational reliability and long service life. The construction made of glass-fibre reinforced plastic ensures mechanical stability and resistance to mechanical stress. The dimensions of 500 mm length, 25 mm width, and 5 mm height allow integration into narrow or flat assemblies.

Functions and Equipment in Detail
The fan consists of a housing made of PBT (Polybutylenterephthalate), a thermoplastic with high heat resistance and mechanical strength. The impeller is made of PA (Polyamide), ensuring high abrasion resistance and dimensional stability. Airflow is achieved via vanes, providing uniform and efficient air guidance. The rotation direction, viewed from the rotor, is left-hand, which must be considered during installation to achieve the desired airflow direction.

Technology Explained Simply
The technology used is based on an electronically commutated outer rotor motor that operates without mechanical brushes. This eliminates wear on the brushes, resulting in a longer service life. Electronic commutation is performed by integrated circuits that control the current supply to the motor based on the rotor position. The reverse polarity protection prevents the fan from starting if connected incorrectly, avoiding damage to the motor. The impedance protection monitors electrical resistance and shuts off the fan if a blockage or overload is detected.

Compatibility and Accessories
The fan is designed for use in devices providing a DC power supply. The electrical connection cable consists of two single conductors with a cross-section of AWG 28 (approximately 0.08 mm²) and insulation material TR 64. The conductor ends are stripped and tinned, enabling a secure and corrosion-resistant connection. The connection method requires direct connection to a suitable power supply or control unit.

Mounting and Installation
Mounting depends on the specific device construction. Due to its flat design (5 mm height), the fan is suitable for installation in narrow enclosures or as underfloor mounting. The rotation direction (left, viewed from the rotor) must be considered during installation to achieve the desired airflow. The connection wires allow for flexible cabling, with correct polarity ensured by the reverse polarity protection.

Operational Advantages
The fan offers high operational reliability due to integrated protection functions (reverse polarity protection, impedance protection) and brushless technology, which results in minimal wear and high service life. The compact design and use of high-quality plastics (PBT, PA) ensure a robust construction that operates reliably even under load. The uniform airflow via vanes ensures efficient cooling performance without unnecessary noise.