NTL 650 Semiconductor Fan Heater with Thermostat | DIN Rail Mount Enclosure Heater

The NTL 650 semiconductor fan heater is a robust, reliable solution for maintaining optimum temperature in electrical and electronic enclosures. Designed for protection against condensation, frost, and overheating, it ensures sensitive components operate safely and efficiently.

Featuring a PTC resistor heating element, the heater automatically limits its temperature, while the temperature safety cut-out protects against overheating in case of fan failure, with automatic reset. Its axial fan with ball bearings provides consistent airflow and long service life, ensuring even heat distribution throughout the enclosure.

The heater is versatile and easy to install, with clip mounting for 35mm DIN rails and the ability to operate in vertical airflow positions (other mounting orientations possible). The built-in thermostat allows precise temperature control, and the manual on/off switch offers convenient operation.

Key Features:

• Operating Voltage: 230VAC or 120VAC

• Heating Element: PTC resistor with temperature limiting

• Temperature Safety Cut-Out: Protects against overheating, automatic reset

• Axial Fan with Ball Bearing: Airflow see table, service life 50,000h at +25°C

• Connection: 2-pole clamp 2.5mm², clamping torque max 0.8Nm

• Casing: Light grey plastic, UL94 V-0 rated

• Thermostat: Integrated for precise temperature control

• On/Off Switch: Manual power control

• Mounting: Clip for 35mm DIN rail, EN 60715

• Fitting Position: Vertical airflow (air outlet up), other positions possible

• Dimensions: 100 x 128 x 165mm

• Operating/Storage Temperature: -45 to +70°C (-49 to +158°F)

• Operating/Storage Humidity: Max 90% RH (non-condensing)

• Protection Type/Class: IP20 / II (double insulated)

Performance Table:

Art. No.	Operating Voltage	Heating Capacity¹	Airflow, free flow	Thermostat Setting²	Weight (approx.)
650D01	220-240VAC, 50/60Hz	300W (50Hz) / 400W (60Hz)	35 m³/h	0 to +60°C	0.9 kg
650D03	220-240VAC, 50/60Hz	475W (50Hz) / 550W (60Hz)	35 m³/h	0 to +60°C	0.9 kg
650D05	220-240VAC, 50/60Hz	550W (50Hz) / 650W (60Hz)	45 m³/h	0 to +60°C	1.1 kg