Carel IR33Z7LR20

Carel IR33Z7LR20

Overview

The Carel IR33Z7LR20 is a versatile electronic temperature controller from the IR33 series, designed for advanced refrigeration and HVAC control. With a 115 VAC power supply, three relay outputs, and a large LED display, it provides precise temperature regulation and system automation for demanding environments. Ideal for cold rooms, refrigerated cabinets, and OEM applications.

Key Features

• Supply Voltage: 115 VAC

• Outputs: 3 relay outputs for control flexibility

• Input Type: NTC or PTC temperature sensor

• Large, bright LED display

• Configurable parameters for various cooling and heating functions

• Keypad lock and password protection

• DIN-rail or panel mounting

• User-friendly interface with front-panel keypad

Technical Specifications

• Part Number: IR33Z7LR20

• Power Supply: 115 VAC ±10%

• Relay Outputs:

  • Relay 1: SPST (compressor)

  • Relay 2: SPST (defrost or fan)

  • Relay 3: SPST (auxiliary)

• Sensor Inputs: 1 × NTC or PTC

• Display: 3-digit red LED, high visibility

• Mounting: Panel mount (DIN 48 × 75 mm)

• Protection Class: IP65 (front), IP20 (rear)

• Operating Temperature: 0 °C to +55 °C

• Storage Temperature: –25 °C to +70 °C

• Humidity: 10–90% RH, non-condensing

• Dimensions: Approx. 75 × 33 mm (panel)

• Weight: Approx. 160 g

Applications

• Refrigerated cabinets and showcases

• Walk-in coolers and freezers

• Beverage cooling systems

• HVAC temperature control

• OEM equipment for commercial refrigeration

Why Choose the IR33Z7LR20

• Versatile 3-relay control for compressors, fans, or defrost cycles

• Wide compatibility with NTC and PTC sensors

• Easy-to-use interface with customizable settings

• Compact footprint with IP65-rated front panel

• Trusted solution in commercial and industrial cooling

Order Now

The Carel IR33Z7LR20 Temperature Controller is available and ships worldwide.

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply