Pfannenberg FLZ 520 Thermostat 0 to 60 °C

The Pfannenberg FLZ 520 is a compact enclosure thermostat designed for temperature‑controlled heater regulation in electrical cabinets, providing reliable normally‑closed switching to prevent condensation and maintain minimum internal temperatures.
Technical specifications
Manufacturer: Pfannenberg
Part number: FLZ 520
Device type: Enclosure thermostat
Control function: Heater control
Temperature setting range: 0 to 60 °C
Switching output: Normally closed contact (N/C, NCC style)
Contact function: Opens on temperature rise
Rated operational voltage: 230 VAC
Rated frequency: 50/60 Hz
Maximum switching current: 10 A
Maximum switching capacity: 2300 W at 230 VAC
Contact type: Mechanical snap‑action contact
Hysteresis (switch differential): Approx. 7 K
Adjustment method: Rotary dial with temperature scale
Mounting method: DIN rail mount (35 mm)
Terminal type: Screw terminals
Wire size capacity: Up to 2.5 mm²
Housing material: Self‑extinguishing thermoplastic
Housing color: Light gray
Degree of protection: IP20
Operating temperature range: -25 °C to +80 °C
Storage temperature range: -40 °C to +80 °C
Approvals and markings: UL Recognized, CE marked
Standards compliance: EN 60730
Typical applications: Control panel heaters, anti‑condensation protection, electrical enclosures
Country of manufacture: Germany Please review pictures carefully and let us know if you have any questions!