Overview
The Elreha L11421.00(LS) is a 4-digit digital temperature controller from Elektronische Regelungen GmbH, a German manufacturer specializing in electronic control systems. This controller is engineered for refrigeration systems, cold storage facilities, and industrial climate control applications where reliable temperature monitoring and switching are essential.
Key Features
- 4-digit LED display for clear temperature readout and parameter visibility
- Multiple relay outputs for controlling compressors, defrost heaters, and alarm circuits
- Programmable setpoint and hysteresis parameters for flexible control logic
- Dual sensor capability for evaporator and ambient temperature monitoring
- Defrost function with timed or demand-based activation
- Parameter access control with configurable security levels
Technical Specifications
Specific detailed specifications for this model are not publicly available. For accurate technical data including input voltage, output ratings, sensor compatibility, temperature range, and dimensional information, please contact your system integrator or consult the original product manual.
Typical Applications
- Commercial refrigeration and cold storage systems
- Industrial freezer and cooler control
- Climate control in warehouses and distribution centers
- Process temperature monitoring in manufacturing environments
Compatibility & Replacements
Compatible With
- Standard 220/240V AC refrigeration power circuits
- Thermistor and PT1000 temperature sensors
- Electromechanical relay loads up to rated amperage
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. This Elreha L11421.00 controller may be interchangeable with other Elreha refrigeration control modules in the same series, but exact model cross-reference requires technical documentation review.
Works With
- Relay-based control circuits for compressor, fan, and defrost circuits
- Standard industrial temperature sensors (TF 201, PT1000, thermistor types)
- 24V DC or 220/240V AC powered systems (verify input voltage specification)






