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Pfannenberg Thermosats FLZ 520 THERMOSTAT +20..+80CFLZ 520 THERMOSTAT +20..+80C
Pfannenberg FLZ 520 enclosure thermostat with +20 °C to +80 °C temperature setting range and normally closed contact for industrial cabinet heater control.
£10.94
Why Choose the Pfannenberg FLZ 520 Thermostat +20..+80C?
The Pfannenberg FLZ 520 Thermostat +20..+80C is a reliable electrical enclosure thermostat designed for automatic temperature regulation in industrial control cabinets. As part of the proven Pfannenberg FLZ 500 thermostat series, it provides dependable switching control for enclosure heaters, helping maintain stable internal cabinet temperatures and protect sensitive electrical components.
The FLZ 520 features a normally closed (N.C.) spring contact configuration, making it suitable for controlling electrical cabinet heaters. By maintaining the enclosure temperature above the dew point, it helps reduce condensation risks and improves the operational reliability of industrial automation equipment.
With an adjustable temperature range of +20 °C to +80 °C, the FLZ 520 provides accurate thermal switching for demanding industrial applications. Its compact DIN rail mounting design enables quick installation inside control cabinets while saving valuable enclosure space.
Key Advantages
- Compact industrial enclosure thermostat for electrical cabinets.
- +20 °C to +80 °C adjustable temperature range for flexible thermal control.
- Normally closed (N.C.) spring contact suitable for cabinet heater control.
- Mechanical switching technology prevents interference from electromagnetic radiation.
- DIN rail mounting enables simple and secure installation.
- Helps optimise energy consumption by activating heaters only when required.
Key Features
- Pfannenberg FLZ 520 thermostat series.
- N.C. contact configuration with spring contact.
- Temperature setting range +20 °C to +80 °C.
- Suitable for operation of electrical cabinet heaters.
- Bimetal temperature sensing element.
- Switching temperature difference <7 K.
- Switching point tolerance ±4 K.
- Snap mounting on 35 mm profile rails according to EN 60715.
Reliable Temperature Control for Electrical Enclosures
Electrical cabinet thermostats such as the Pfannenberg FLZ 520 provide automatic switching control for thermal management equipment. When used with enclosure heaters, they help maintain suitable cabinet temperatures, prevent condensation and support reliable operation of electrical systems.
The FLZ thermostat series is designed for industrial environments where dependable switching, simple installation and efficient thermal management are required. The mechanical spring contact design provides reliable operation without sensitivity to electromagnetic interference.
Typical Applications
- Industrial control cabinets and electrical enclosures.
- Cabinet heater temperature regulation.
- Automation and machine building systems.
- Condensation prevention in electrical cabinets.
- Switchgear and control panel installations.
- Industrial thermal management systems.
Technical Specifications
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| Contacts | 1NC | |
|---|---|---|
| Device Type | Thermostat | |
| Control Type | Thermostat | |
| Manufacturer | Pfannenberg | |
| Series | FLZ 500 Thermostats | |
| Model | FLZ 520 Thermostat +20..+80C | |
| Article number | 17111000004 | |
| Product type | Electrical enclosure thermostat | |
| Contact type | Normally closed (N.C.) with spring contact | |
| Temperature setting range | +20 °C to +80 °C | |
| Switching temperature difference | <7 K | |
| Switching point tolerance | ±4 K | |
| Maximum switching capacity | 240 V AC / 10 A (2 A inductive) | |
| DC switching capacity | max. 30 W | |
| Mounting type | 35 mm DIN rail snap mounting | |
| Connection type | Screw terminal | |
| Terminal cross-section | 0.5–2.5 mm² | |
| Protection rating | IP20 | |
| Operating temperature | -40 °C to +80 °C | |
| Probe type | Bimetal | |
| Colour | RAL 7035 | |
| Dimensions (H × W × D) | 72 × 40 × 36 mm | |
| Weight | approx. 50 g |
Frequently Asked Questions
What is the Pfannenberg FLZ 520 thermostat used for?
The FLZ 520 is used to regulate temperatures inside electrical enclosures and control cabinet heaters.
What temperature range does the FLZ 520 support?
The thermostat supports an adjustable temperature range of +20 °C to +80 °C.
Is the FLZ 520 normally open or normally closed?
The FLZ 520 uses a normally closed (N.C.) spring contact configuration suitable for controlling heaters.
How is the FLZ 520 installed?
The thermostat is designed for snap mounting on a 35 mm DIN rail according to EN 60715.
What protection rating does this thermostat provide?
The FLZ 520 provides IP20 protection for installation inside electrical cabinets.
Trusted by Industrial Engineers Worldwide
Pfannenberg FLZ thermostats are widely used by automation engineers and panel builders to provide reliable temperature control, protect electrical components and improve the efficiency of industrial enclosure thermal management systems.
