Pfannenberg 17143000000 FLZ 543 – Twin Thermostat for Two Fans, 0–60 °C, N.O./N.O.
The Pfannenberg 17143000000 is an FLZ 543 twin thermostat: two independent thermostats in one housing, each with a normally open (N.O.) contact. Each contact closes when the cabinet temperature rises above its setpoint. That lets it control two Filterfans®, two cooling stages, or a fan plus an alarm at different switching points, each set between 0 and 60 °C.
This gives staged cooling in a single DIN rail device. For example, a first Filterfan® starts at a moderate temperature and a second fan or cooling unit cuts in when the temperature keeps rising.
What the Part Number Means
- 17143000000 – Pfannenberg article number: FLZ 543 twin thermostat, N.O./N.O. contacts, 0 to 60 °C
- FLZ 543 – Pfannenberg twin thermostat with two N.O. contacts (FLZ 541 = N.C./N.O. for heater and fan; FLZ 542 = N.C./N.C. for two heaters)
Key Features
- Twin thermostat: two independent N.O. contacts in one device
- Staged cooling: two fans, two cooling stages, or fan plus over-temperature alarm
- Independent setpoints: each adjustable from 0 to 60 °C
- Tool-free mounting: snaps onto 35 mm DIN rail (EN 60715)
- Sensor and housing: bimetal sensing, compact light grey housing (RAL 7035)
Key Specifications (Pfannenberg FLZ 543, 17143000000)
Electrical Data
- Contacts: N.O. / N.O. (spring contacts)
- Switching capacity, AC: 120 V AC / 15 (2) A per N.O. contact (values in brackets for inductive load at cos φ = 0.6)
- Switching capacity, DC: max. 30 W
- Connection: screw terminals, 0.5–2.5 mm²
Thermal Data
- Setting range: 0 to 60 °C
- Switching temperature difference: < 7 K
- Sensor: bimetal
- Operating temperature: -40 to +80 °C
Mechanical Data
- Mounting: snap fastening on 35 mm DIN rail to EN 60715
- Colour: RAL 7035 (light grey)
- Dimensions: 59 × 80.5 × 38 mm
Typical Applications
- Staged cooling of electrical enclosures with two Filterfans®
- Fan control plus over-temperature alarm in one device
- Cabinets in hot production areas with high heat loads
- Replacement twin thermostat for existing Pfannenberg climate control systems
Buy the Pfannenberg 17143000000 from Atlantech Drives
Atlantech Drives supplies the Pfannenberg 17143000000 FLZ 543 twin thermostat with fast worldwide shipping and a 12-month warranty. Our experienced sales team can also quote Pfannenberg Filterfans®, cooling units, cabinet heaters and signalling devices. Request a quote today for price and availability.
More Pfannenberg Products
- Pfannenberg PF 32.000 Filterfan 230V AC RAL 7035
- Pfannenberg PF 43.000 Filterfan 230V Mid-Range Cooling
- Pfannenberg PFA 40.000 Exhaust Filter 223mm Cutout
- All Pfannenberg products
Manufacturer website: Pfannenberg
Keyword Synonyms
- 17143000000 / FLZ 543 / FLZ543 / 171 430 000 00
- Pfannenberg FLZ 543 twin thermostat
- Pfannenberg dual thermostat for two fans 0-60 °C
- Pfannenberg N.O./N.O. enclosure thermostat
- Pfannenberg DIN rail twin fan thermostat
- Pfannenberg staged cooling cabinet thermostat
- Pfannenberg Doppelthermostat FLZ 543 / Schaltschrank-Thermostat 17143000000
