Prima Klima - Whisperblower PK125WHSP-EC-TC Temperature-Controlled Inline Fan Ø125 mm, 800 m³/h

Quiet 125 mm inline fan with an ebm-papst EC motor and built-in temperature control, up to 800 m³ per hour. Power consumption up to 170 W, weight 2.85 kg.

What makes the Whisperblower different

Prima Klima developed the Whisperblower together with motor manufacturer ebm-papst. The housing and air guidance were redesigned, so the fan builds more pressure at the same power consumption and makes less noise than earlier Prima Klima fans. That pressure is what counts in a grow room, because a carbon filter and a long duct cost airflow.

The housing is made of impact-resistant, flame-retardant polyamide (nylon). Connection and controls are built into the housing and the cable with plug is attached: ducts on and plug in.

Why EC

An EC motor is electronically commutated. When you ask for less air, it really draws less power, instead of just running slower like a regular motor on a dimmer. It controls steplessly and quietly, without the hum of a regular controller. If your fan runs day and night at part of its capacity, that adds up to a real saving over a year.

Controls itself by temperature

The EC-TC has a temperature sensor on a cable, which you hang where you want to monitor the temperature. Use the knobs on the housing to set the target temperature and the speed. When it gets warmer, the fan steps up steplessly; when the room cools down, it drops back again. So it never runs harder than needed, which you notice in noise and power use.

Technical Specifications:

• Connection size: 125 mm
• Airflow: up to 800 m³ per hour, stepless
• Power consumption: up to 170 W
• Current: up to 0.74 A
• Motor: ebm-papst EC motor
• Control: temperature-controlled, with knobs on the housing
• Temperature sensor: external, on a cable
• Housing: polyamide (nylon), flame-retardant
• Insulation class: class II
• Plug: cable with plug included
• Air temperature: up to 50 °C
• Dimensions: 315 x 309 mm (w x h)
• Weight: 2.85 kg

Frequently asked questions

What is the difference with the WHSP-EC?
The WHSP-EC has no temperature sensor; you set it by hand. The EC-TC controls itself by temperature.

What is the difference with the PK125 EC-TC?
The PK125 EC-TC is the earlier temperature-controlled model, up to 680 m³ per hour. The Whisperblower version has a new, quieter housing and goes up to 800 m³ per hour.

Can I use a carbon filter with it?
Yes, that is what it is made for. Choose a filter with a 125 mm connection that matches the airflow, so the filter doesn't become the limiting factor.