Pfannenberg 17111000003 FLZ 520 – Enclosure Thermostat for Heaters, -20 to +40 °C, N.C. Contact
The Pfannenberg 17111000003 is an FLZ 520 enclosure thermostat for controlling cabinet heaters. Its normally closed (N.C.) contact opens when the cabinet temperature rises above the setpoint and closes again when it falls. The heater therefore runs only when it is needed.
This version has a low setting range of -20 to +40 °C. That makes it well suited to outdoor or unheated cabinets, where reliable frost and condensation protection is essential. It snaps onto a standard 35 mm DIN rail without tools.
What the Part Number Means
- 17111000003 – Pfannenberg article number: FLZ 520 thermostat, N.C. contact, setting range -20 to +40 °C
- FLZ 520 – Pfannenberg thermostat for cabinet heaters (N.C. contact)
- Last digit “3” – -20 to +40 °C setting range
Key Features
- N.C. contact for switching cabinet heaters
- Low setting range: -20 to +40 °C, for cold environments
- High switching capacity: up to 15 A at 120 V AC, 10 A at 240 V AC
- Tool-free mounting: snaps onto a 35 mm DIN rail (EN 60715)
- Wiring: screw terminals, 0.5–2.5 mm²
- Housing: compact, light grey (RAL 7035)
Key Specifications (Pfannenberg FLZ 520, 17111000003)
Electrical Data
- Contact type: N.C. (spring contact)
- Switching capacity, AC: 120 V AC / 15 (2) A; 240 V AC / 10 (2) A (values in brackets for inductive load)
- Switching capacity, DC: max. 30 W
- Connection: screw terminals, 0.5–2.5 mm²
Thermal Data
- Setting range: -20 to +40 °C
- Switching temperature difference: < 7 K
Mechanical Data
- Mounting: snap fastening on 35 mm DIN rail to EN 60715
- Colour: RAL 7035 (light grey)
- Dimensions (W × D × H): 40 × 36 × 72 mm
Typical Applications
- Frost and condensation protection in outdoor or unheated cabinets
- Controlling cabinet heaters in cold climates
- Control panels in humid or low-temperature environments
- Replacement thermostat for existing Pfannenberg climate control systems
Buy the Pfannenberg 17111000003 from Atlantech Drives
Atlantech Drives supplies the Pfannenberg 17111000003 FLZ 520 thermostat with fast worldwide shipping and a 12-month warranty. Our experienced sales team can also quote Pfannenberg cabinet heaters, Filterfans®, cooling units and signalling devices. Request a quote today for price and availability.
More Pfannenberg Products
- Pfannenberg FLZ 530 Twin Thermostat (Heater + Fan)
- Pfannenberg FLH 400 Fan Heater 400W 230V AC
- Pfannenberg FLZ 610 Mechanical Hygrostat for Humidity Control
- All Pfannenberg products
Manufacturer website: Pfannenberg
Keyword Synonyms
- 17111000003 / FLZ 520 / FLZ520 / 171 110 000 03
- Pfannenberg FLZ 520 thermostat -20 to +40 °C
- Pfannenberg heater thermostat N.C., low temperature range
- Pfannenberg normally closed enclosure thermostat
- Pfannenberg DIN rail cabinet thermostat for heaters
- Pfannenberg FLZ NC enclosure thermostat
- Pfannenberg Thermostat FLZ 520 Öffner / Schaltschrank-Thermostat 17111000003
