The Lettel CRT-3D is a compact, modular temperature controller specifically engineered for direct DIN rail mounting in electrical cabinets. By eliminating the digital display, it provides an economical and vibration-resistant solution for applications where setpoint adjustments are made during commissioning and monitoring is handled remotely.

Operational Features

• Space-Saving Design: Fits standard 35mm DIN rail profiles, making it ideal for high-density electrical control panels.
• Analogue Reliability: Features high-quality potentiometers for temperature threshold settings, ensuring long-term stability without software complexity.
• Easy Integration: Modular housing aligns with standard circuit breakers and power components within industrial switchgear.

Main Applications

• Anti-condensation heating in electrical panels
• Cooling fan control for switchgear
• Basic building climate regulation