Legrand 913404 Polarrex Kkt Analog Defrost Timer

What is the Legrand 913404 Polarrex KKT Analog Defrost Timer?

The Legrand 913404 Polarrex KKT is an analog defrost timer used for the control of an automatic defrost cycle in a refrigeration system. Common applications include deep freezers, cold rooms, display chillers, and industrial cooling units.

This timer controls the frequency and duration of the defrost cycles, which melts ice buildup on the evaporator coils periodically. It helps maintain optimum cooling efficiency, prevents excessive compressor load, and prolongs equipment life.

The analog timer has simple rotary settings, mechanical reliability, and precise timing without the complexity of digital interfaces.

Key Features of the Legrand 913404 Polarrex KKT Analog Defrost Timer

The Polarrex KKT model is designed with functionality and reliability in mind. The following are its key features:

1. Robust Mechanical Construction

The timer is built with high-quality Legrand engineering that offers a long service life-even in demanding cold environments.

2. Time Control Accuracy

Provides precision switching for refrigeration cycles to maintain consistent cooling and defrost operations.

3. Adjustable Defrost Intervals

It supports flexible adjustment of cycle duration and frequency according to different cooling requirements.

4. Simple Analog Operation

It operates with a rotary dial and mechanical switch setup that makes installation and configuration easy.

5. Reliable at Low-Temperature Conditions

Engineered to perform consistently in extreme cold, suitable for commercial freezing units.

6. Low Maintenance Design

Fewer electronic components reduce the chances of faults and make the unit more dependable even after years of use.

7. Universal Compatibility

It can be combined with almost all kinds of refrigeration compressors, evaporators, and temperature controllers.

Applications of Legrand 913404 Polarrex KKT Analog Defrost Timer

This timer is deployed across different cooling and refrigeration systems, especially where predictable and controlled defrosting is required. Popular applications include:

1. Commercial Refrigeration

• Supermarket display freezers
• Beverage coolers
• Meat and dairy display units

2. Industrial Cold Rooms

Large-scale cold storage for food processing, pharmaceuticals, and agriculture.

3. Deep Freezers

Ensures defrost cycles occur automatically in order to keep cooling coils clean and efficient.

4. Walk-in Chillers & Freezers

Prevents frost accumulation in walk-in cold environments.

5. HVAC and Cooling Equipment

Supports thermal stability across specialized cooling systems.

6. Ice-Cream & Dairy Refrigeration Units

Keeps sensitive dairy and frozen products at their ideal temperature.

Why choose the Legrand 913404 Polarrex KKT analog defrost timer?

The Polarrex series is trusted worldwide because of its reliability and strong build quality. Here’s why technicians and industries prefer this model:

1. Quality from Legrand You Can Trust

Legrand electrical and automation components are known for their durability. This timer is no different, operating with high performance.

2. Stable Analog Mechanics

Analog in nature, its mechanism ensures operation with no digital malfunctions or complexity.

3. Easy Installation & Setup

Defrost cycles can be set up easily by technicians because of simple mechanical controls.

4. Energy Efficiency

Regular, controlled defrost cycles minimize unnecessary compressor strain and energy use.

5. Extends Refrigerator Life

Proper defrosting helps:

• Maintain coil efficiency
• Reduce frost load
• Prevent overheating

It leads to higher equipment life and less breakdown.

6. Widely Compatible

It can be integrated into new or existing cooling setups without modification.

7. Cost-Effective & Long-Lasting

Provides excellent value, considering it is durable and requires little maintenance.