Pfannenberg FLZ 520 thermostat, a compact normally closed enclosure temperature controller with 0…+60 °C range designed for industrial heater control applications.
£14.76
The Pfannenberg FLZ 520 Thermostat 0..+60C is a compact and reliable electrical enclosure thermostat designed for automatic temperature regulation inside industrial control cabinets, automation enclosures and electrical systems. As part of the trusted Pfannenberg FLZ 500 thermostat series, it provides dependable switching control for cabinet heaters, helping maintain safe operating conditions and prevent condensation.
The FLZ 520 features a temperature setting range of 0...+60 °C and uses a normally closed (N.C.) contact with spring contact technology, making it especially suitable for controlling enclosure heaters. Its mechanical switching design ensures reliable operation without interference from electromagnetic radiation.
With its compact housing, DIN rail mounting capability and robust bimetal sensor technology, the Pfannenberg FLZ 520 helps maintain optimum enclosure temperatures by switching heating equipment when required. It is ideal for industrial applications where reliable thermal management and condensation prevention are essential.
Industrial thermostats such as the Pfannenberg FLZ 520 provide automatic control of enclosure heaters by responding to temperature changes inside electrical cabinets. This helps maintain stable operating conditions, reduce condensation risk and protect sensitive electrical components.
The FLZ 520 series is designed for reliable industrial thermal management, offering simple installation, accurate temperature switching and dependable operation in automation systems, machinery and control cabinets.
| Manufacturer | Pfannenberg |
|---|---|
| Series | FLZ 500 Thermostats |
| Model | FLZ 520 Thermostat 0..+60C |
| Article number | 17111000000 |
| Product type | Electrical enclosure thermostat |
| Temperature setting range | 0...+60 °C |
| Switching differential | <7 K |
| Switching point tolerance | ±4 K |
| Contact type | Normally closed (N.C.) contact with spring contact |
| Sensor type | Bimetal |
| Maximum switching capacity | 100–250 V AC / 10(2) A |
| DC switching capacity | max. 30 W |
| Operating temperature range | -20...+80 °C |
| Mounting type | Snap fastening for 35 mm profile bars according to EN 60715 |
| Connection type | Screw terminal for 0.5–2.5 mm² cable |
| Protection rating | IP20 |
| Colour | RAL 7035 |
| Weight | approx. 50 g |
| Dimensions (H × W × D) | 72 × 40 × 36 mm |
The FLZ 520 is used to control electrical cabinet heaters and maintain suitable temperatures inside industrial enclosures.
This model supports a temperature range of 0...+60 °C.
The FLZ 520 uses a normally closed (N.C.) spring contact designed primarily for heater control.
The thermostat provides a switching differential of less than 7 K.
The thermostat is installed using snap fastening on standard 35 mm DIN rails inside electrical enclosures.
Pfannenberg FLZ thermostats are trusted by engineers and machine builders worldwide for reliable enclosure temperature control and dependable protection of industrial electrical systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...