S+S Frost protection thermostat - FST-3D-HR

S+S Frost Protection Thermostat - FST-3D-HR

Discover the innovative S+S Frost Protection Thermostat - FST-3D-HR designed by S+S Regeltechnik GmbH to provide reliable frost protection for your heating systems and prevent freezing damages. Ideal for temperature monitoring in heat exchangers, water circulation systems, and heating registers, this mechanical frost protection thermostat features a switching output, fully active sensing rod, automatic reset, or manual lock with hand reset option.

Advantages and Features

• Equipped with an inherently safe design and sensor breakage detection for added safety.
• Automatically switches to heating mode in case of damage to the capillary tube membrane system.
• Suitable for monitoring liquids by installing the sensing tube into a immersion sleeve.
• Includes mounting brackets MK-05-K for easy installation.

Technical Specifications

• Switching Capacity: 10 (2) A, AC 250 V; can also handle signal voltages < 24 V.
• Switching Differential: 2 ± 1 K (3.6 ± 1.8 °F).
• Housing: UV-resistant, glass-filled polyamide material in traffic white color (similar to RAL 9016).
• Dimensions: 126 x 90 x 50 mm (Tyr 2).
• Function: Temperature limiter with manual reset.
• Sensing Rod Length: 1.8 m.
• Capillary Tube Length: 1.8 m.
• Cable Gland: M 16 x 1.5 with strain relief.
• Process Connection: Using mounting brackets MK-05-K (included in the delivery).
• Protection Class: IP 65 (according to EN 60 529).