Dixell XR02CX-4N1F1 Digital Temperature Thermostat Controller

In this review the Dixell XR02CX-4N1F1 is examined for users needing a compact, reliable temperature controller for normal temperature refrigeration. The bottom line: this short-format digital thermostat is best for technicians and appliance builders who want a configurable controller with an off cycle defrost and a single heavy-duty relay to drive compressors. The reviewer found it straightforward to configure via the keyboard or HOTKEY and durable when installed within the stated limits, making it a practical choice for FRIDGES, FREEZERS and similar heating appliances where simple, robust control is required.

Key Features

• Compact format: The 32x74x50 mm short format and shallow built-in depth make it easy to mount into tight panels and retrofit into existing enclosures.
• Off cycle defrost: The built-in defrost function reduces manual intervention by allowing scheduled off cycle defrost for typical refrigeration needs.
• Single relay output: The NO relay rated to 20A(8) provides a strong, straightforward output to drive compressors or similar loads.
• NTC probe input: The controller accepts an NTC temperature probe input, enabling reliable sensing when the probe is installed away from user access.
• Configurable parameters: Special parameters are fully programmable via keyboard or HOTKEY so installers can adapt control behavior to specific appliances.
• Safety guidance: The manual emphasizes supply voltage checks and separation of probe, load and supply wiring to promote safe, long service life.

Who It's For

The XR02CX-4N1F1 is aimed at refrigeration technicians, small appliance manufacturers and workshop users who need a rugged, easy-to-configure digital thermostat for normal temperature refrigeration and simple defrost control. Installers who appreciate a clear parameter set and a single heavy-duty relay will find this controller a sensible choice.

It is not intended for environments where the controller may be exposed to water or frequent condensation, nor for applications requiring multiple relay outputs or integrated sensors - in those cases a multi-output or waterproof unit would be more suitable.

Pros & Cons

Pros

• Robust single relay rated at 20A(8) provides reliable compressor switching for typical refrigeration loads.
• Compact, short format simplifies panel mounting and retrofits into constrained spaces.
• Programmable parameters and HOTKEY support make setup flexible without extra tools.
• Clear installation warnings and wiring guidance promote safe use when followed.

Cons

• Probe is not included, so buyers must supply a compatible NTC probe and fit it out of user reach.
• Not designed to be opened or exposed to moisture, so it is unsuitable for damp or washdown environments.

Specifications

Model	XR02CX-4N1F1
Supply	110V AC, 50-60Hz
Dimensions (panel)	71mm x 29mm, built-in depth 56mm
Probe input	1 NTC (probe not included)
Relay outputs	1 NO relay, 20A(8)
Protection	IP54
Function	Off cycle defrost / time control

Our Verdict

The Dixell XR02CX-4N1F1 is a solid, no-nonsense controller for technicians and appliance makers who need precise defrost control and a sturdy single relay in a compact package. It offers good configurability and installation guidance, making it good value when paired with a proper NTC probe and mounted away from moisture.

Frequently Asked Questions

Does the controller include the temperature probe?
The unit requires an external NTC probe which is not included, so plan to purchase and mount a compatible probe out of user reach.

Can it be used in damp environments?
No, the controller must not be exposed to water or condensation; install it within the operating limits and avoid rapid temperature changes with high humidity.

Is the relay strong enough for standard compressors?
Yes, the single NO relay is rated 20A(8), suitable for typical refrigeration compressor loads when wiring limits are respected.