📝 Description

Used and working product.
Ventilation assembly consisting of 3 Sanyo Denki San Ace 80WS axial fans, model 9WS0812H401, mounted on a single metal support and wired with connectors and cable gland. It is intended for forced cooling of electronic equipment, inverters, power supplies, electrical panels, and industrial systems.

⚙️ Technical Specifications

• Brand: Sanyo Denki
• Series: San Ace 80WS
• Model: 9WS0812H401
• Quantity: 3 fans
• Nominal voltage: 12 VDC
• Nominal current: 0.16 A per fan
• Nominal power: 1.92 W per fan
• Single fan dimensions: 80 × 80 × 25 mm
• Nominal speed: 3,100 rpm
• Maximum airflow: 0.94 m³/min – 33.2 CFM per fan
• Maximum static pressure: 45.1 Pa
• Noise level: 32 dB(A)
• Supply voltage range: 10.2–13.8 VDC
• Bearing: Ball Bearing
• Protection: IP54
• Operating temperature: −20…+70 °C
• Weight: approx. 120 g per individual fan
• Sensor: tachometric/pulse output
• Connection: 3-wire, with power supply and tachometric signal.
  The visible label on the fans clearly shows “San Ace 80WS”, “MODEL 9WS0812H401”, “DC12V – 0.16A”, SANYO DENKI, and “MADE IN JAPAN”.

⚡ Function in the Electrical System

The assembly provides forced cooling. The three fans draw or direct air through the system in which they are installed, helping dissipate heat generated by photovoltaic inverters, converters, power supplies, power electronics, electrical cabinets, and industrial equipment.
The 9WS0812H401 model features a speed sensor, useful for rotation monitoring by the equipment electronics. The San Ace 80WS series is also designed with locked-rotor protection and reverse-polarity protection.

🏭 Construction and Installation

The assembly includes three identical 80 mm fans, secured to a common metal plate with the relevant hardware. Connection wiring, connectors, and a cable gland/pass-through for the cable outlet are present.
The fans use plastic frames and impellers; the specific model is equipped with ribs and a pulse sensor. The manufacturer specifies a nominal life of approximately 40,000 hours at 60 °C, under reference conditions.

🌐 Applications

Particularly suitable as a ventilation assembly for:

• photovoltaic inverters;
• converters and power supplies;
• electrical panels and industrial electronics;
• telecommunications systems;
• equipment with internal heat dissipation;
• replacement of original cooling assemblies.
  The configuration with three fans on a single plate is useful when a complete assembly needs to be replaced without working on the individual fans separately.

🛡️ Safety and Product Condition

The assembly is used, with normal signs of use on the structure and fans. From the photographs, all three units appear complete and mounted on their respective support.
Before use, it is necessary to verify 12 VDC voltage, polarity, tachometric signal connection, and correct current consumption.
The IP54 rating applies to the individual fans according to Sanyo Denki documentation; the actual protection of the complete assembly instead depends on the installation, cable gland, and equipment in which it is installed.

📦 Package Contents

• 1 complete ventilation assembly
• 3× Sanyo Denki San Ace 80WS
• Model 9WS0812H401
• Common metal support
• Visible wiring and connectors

🚀 Final Description

The Sanyo Denki San Ace 80WS 9WS0812H401 is a professional assembly consisting of 3 brushless 80×80×25 mm axial fans, powered at 12 VDC / 0.16 A each, with 3,100 rpm, airflow up to 33.2 CFM per fan, IP54, ball bearings, and tachometric output. The product is particularly suitable for cooling inverters, power electronics, and industrial equipment, especially when a complete pre-assembled replacement assembly is required. The model data are confirmed by Sanyo Denki documentation.