Eliwell EWPlus 974-230V Freezer Controller | OEM 230V Digital Temperature & Defrost Controller, 3 Relay Outputs, 2 NTC Sensors

The Genuine OEM Eliwell EWPlus 974-230 is a digital thermostat controller built in Italy by Eliwell, part of the Schneider Electric group brand, for commercial freezer applications. This 230V controller manages temperature and defrost cycling through three relay outputs (compressor, defrost, fan), with a 1HP compressor relay and 2 included NTC sensors — making it a reliable replacement for failed freezer controls showing temperature instability, defrost issues, or compressor short cycling.

Built for reliability, it includes compressor short-cycle protection to help extend equipment life and maintain consistent operation.

This original OEM controller is commonly used in service replacements for commercial freezers and display cases across a wide range of refrigeration brands.

Technicians typically choose this model when replacing failed mechanical thermostats or unstable electronic controllers that no longer maintain consistent freezer performance under load.

Technical Summary

The EWPlus 974-230 is part of the Eliwell 974 digital controller series used in commercial refrigeration systems requiring electronic temperature regulation and automatic defrost cycle control. It is widely used in freezer applications where stable evaporator management, compressor protection logic, and dual-probe NTC temperature monitoring are required for consistent system performance.

Its control logic is specifically designed for commercial freezer environments where compressor cycling stability and defrost reliability are critical for food safety and equipment protection.

Common Issues This Controller Helps Solve

• Unstable freezer temperature control
• Failed or inconsistent defrost cycles
• Compressor short cycling issues
• Mechanical thermostat failure
• Sensor reading errors
• Intermittent refrigeration system operation

When to Replace Your Controller

• Freezer not maintaining correct temperature
• Compressor running continuously or cycling too frequently
• Defrost cycle not activating correctly
• Error codes or sensor faults displayed
• Loss of temperature stability under load

If your freezer is experiencing any of the above issues, replacing the controller with a compatible EWPlus 974-230 is often the fastest and most reliable repair solution.

EWPlus 974 vs EWPlus 961

• EWPlus 974 Series: Designed for freezer applications
• EWPlus 961 Series: Designed for cooler/refrigeration applications
• Different defrost logic and temperature control behavior
• Selection depends on system operating temperature range

This comparison is important because selecting the wrong controller model may result in incorrect temperature behavior or defrost cycle performance.

Features

• Genuine OEM Eliwell part
• Model EWPlus 974-230
• 230V operation
• Designed for freezer applications
• Three fixed relay outputs (compressor, defrost, fan)
• Compressor relay rated at 1HP
• Controls temperature and defrost cycles
• Includes compressor short-cycle protection
• Easy-to-read digital display
• Includes 2 NTC temperature sensors
• Manufactured in Italy by Eliwell, part of Schneider Electric group brand

Compatible Brands

This controller is commonly used as a direct OEM replacement or aftermarket-compatible replacement depending on the equipment brand:

Brand names referenced above are trademarks of their respective owners. This listing is not affiliated with, sponsored by, or endorsed by any of these brands; it is offered as a compatible OEM or aftermarket replacement part for fit and function only.

Applications

• Commercial freezers
• Reach-in freezers
• Display freezers
• Merchandiser freezers
• Light commercial refrigeration systems
• Freezer display cases

Specifications

What's Included

• 1 × Genuine OEM Eliwell EWPlus 974-230 Controller
• 2 × NTC Temperature Sensors

Available Models

Make sure you order the correct series and voltage for your application:

Freezer Controllers (EWPlus 974 Series)

• Eliwell 974 Series – 120V
• Eliwell 974 Series – 230V (this listing)

Cooler Controllers (EWPlus 961 Series)

• Eliwell 961 Series – 120V
• Eliwell 961 Series – 230V

Have a cooler instead of a freezer? You'll need the Eliwell 961 Series, not the 974.

Frequently Asked Questions

Is this a genuine OEM Eliwell controller?

Yes. This is an original Eliwell controller manufactured in Italy by Eliwell, part of the Schneider Electric group brand.

Is this controller for freezers or coolers?

The EWPlus 974 series is designed for freezer applications. If you have a cooler, you'll need the Eliwell 961 series instead.

Are sensors included?

Yes. This controller includes 2 NTC temperature sensors.

Does this controller manage defrost cycles?

Yes. It controls temperature and defrost functions.

Does it provide compressor protection?

Yes. It includes compressor short-cycle protection.

See our full selection of digital temperature controllers and refrigeration thermostats for commercial coolers, freezers, chillers, and refrigeration systems.  View All Industrial Temperature Controllers

Learn more about how digital control systems compare to older mechanical solutions in our guide: Industrial Digital Thermostat vs Mechanical Temperature Controllers

Read full technical details, wiring logic, fault codes, and model differences: Read the complete Eliwell EWPlus technical guide