CAREL IR33Z7HR20 Universal Temperature Controller – 4 Relay Outputs, 115–230V AC

Description

Product Overview
The CAREL IR33Z7HR20 is a universal electronic controller designed to manage temperature and related operating functions in compatible refrigeration, HVAC and industrial systems. Its four relay outputs allow the controller to operate multiple control stages or devices according to the configured application.
The controller includes a digital front display and keypad for viewing readings and adjusting parameters. Its integrated buzzer provides audible alerts, while the infrared receiver supports operation with a compatible remote control. The model is designed for panel mounting and requires a suitable 115–230V AC supply.

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Technical Specifications
Specification Details
Brand CAREL
Product series IR33 Universal
Model IR33Z7HR20
Product type Universal electronic temperature controller
Mounting type Panel mount
Power supply 115–230V AC
Supply frequency 50/60Hz
Analog inputs 2
Digital inputs 2
Outputs 4 relay outputs
Audible alert Integrated buzzer
Remote control interface Infrared receiver
Real-time clock (RTC) Not included in this model variant
Typical applications Temperature control, refrigeration and HVAC systems
Specifications are based on CAREL’s product documentation. Confirm sensor compatibility, relay contact ratings and the required control configuration before installation.

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Key Features and Benefits
– Four relay outputs: Supports control of multiple devices or operating stages.
– Two analog inputs: Accepts compatible measurement inputs according to the controller configuration.
– Two digital inputs: Allows integration of compatible external signals and control conditions.
– Temperature regulation: Supports configured temperature-control applications.
– Integrated buzzer: Provides audible alerts for supported operating conditions.
– Infrared receiver: Enables remote operation with a compatible CAREL remote control.
– Panel-mounted format: Designed for integration into equipment control panels.
– 115–230V AC supply: Supports the specified mains-powered configuration.

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Applications
The CAREL IR33Z7HR20 can be used in compatible control systems for:
– Commercial refrigeration equipment
– Refrigerated display cabinets and storage units
– HVAC equipment
– Temperature-controlled chambers
– Industrial temperature-management systems
– Equipment requiring multiple relay-controlled outputs
The exact application depends on the programmed control logic, sensor type and connected equipment.
Installation and Compatibility Guidance
Before ordering, check the complete model code and verify that the controller matches the required supply voltage, sensor inputs, relay configuration and panel dimensions. CAREL sensors and compatible accessories may need to be sourced separately.
Follow the manufacturer’s wiring diagram and installation instructions. Confirm the relay ratings against the connected loads, and have electrical connections and commissioning completed by qualified personnel.
Enquire About CAREL IR33Z7HR20 in the UAE
Dynavation Star Electrical Fittings Trading LLC supplies electronic and industrial components to commercial and industrial customers across the UAE. Contact the team to enquire about the CAREL IR33Z7HR20 Universal Temperature Controller, current pricing and availability.
Contact Dynavation Star on WhatsApp for the latest price and availability