Beschrijving
Product description
The JUMO ATH, model type 603021/20, is a surface-mounted Safety Temperature Monitor (STW) and Safety Temperature Limiter (STB) designed to ensure the operational safety of thermal processes. Operating on the reliable fluid expansion principle, it uses a single-pole snap-action microswitch to open or close an electrical circuit when the preset temperature limit is exceeded. A critical feature is its self-monitoring capability; if the measuring system is damaged and the expansion fluid escapes, the internal pressure drop automatically places the system into a safe, open-circuit state. This fail-safe design is compliant with the stringent DIN EN 14597 standard and the Pressure Equipment Directive (PED) 2014/68/EU. Housed in a sturdy, IP54-rated enclosure, the thermostat is built for industrial environments. The ATH-20 model offers a wide variety of control ranges, capable of monitoring temperatures up to +500 °C, and is available with either a rigid thermowell or a flexible capillary for versatile installation. This makes it an essential safety component for monitoring and protecting heating systems, boilers, and other critical thermal equipment.
Product specifications
Model type | ATH-20 (603021/20) |
Material | Metal |
Productname | Thermostat ATHs-20-500°C |
Brand | Jumo GmbH & Co. KG |
Category | Instrumentation/Thermometers |
Switching capacity | 10 A, 230 V |
Max temperature | 500 °C |
Originally from | Germany |
Switching elements | Single wire switching contact |
Protection class | IP54; IP65 (type 603035) |
Certificates | DIN, (DGRL, EAC; type 603021, 603026) |
Features | Single thermostat |
Diameter | 10 mm |
