


SZ-7558T Temperature Controller | 20A Compressor Relay with Alarm Output
Subzero SZ-7558T Temperature Controller | Digital Cooling Controller
Compact digital temperature controller designed for commercial refrigeration, chillers, and HVAC applications, offering precise control, high reliability, and easy DIN-rail/panel installation.
The Subzero SZ-7558T is a compact and reliable digital temperature controller designed for commercial refrigeration, chillers, cold rooms, HVAC systems, and industrial cooling applications. It offers accurate temperature monitoring, user-friendly configuration, and durable performance even in demanding environments.
KEY FEATURES
Compact digital temperature controller for cooling applications
Accurate temperature measurement and stable control output
Supports NTC sensor input
Relay-based output for compressor or cooling device
Clear LED display for temperature readout
Front-panel programmable settings
Wide operating temperature range
Durable and long-life electronics
Suitable for commercial and industrial refrigeration
TECHNICAL SPECIFICATIONS (TABLE)
| Parameter | Details |
|---|---|
| Model | SZ-7558T |
| Brand | Subzero |
| Input Sensor | NTC |
| Control Output | Relay |
| Application | Cooling/Chiller/Refrigeration |
| Display Type | LED |
| Supply Voltage | 230V AC (typical) |
| Control Mode | ON/OFF |
| Temperature Range | As per NTC sensor capability |
| Accuracy | ±1°C (typical) |
| Mounting | Panel mount |
| Housing | ABS/Plastic enclosure |
| Protection | Front-panel IP rating (manufacturer standard) |
| Dimensions | Refer to recommended logistics |
APPLICATIONS
Commercial refrigeration
Deep freezers
Chillers
Cold storage rooms
Bottle coolers
HVAC control panels
Milk coolers
Industrial cooling systems
WHAT’S IN THE BOX
Subzero SZ-7558T Temperature Controller
NTC Sensor (if included by manufacturer)
User manual
Mounting clips
FAQ
Q1: What sensor does the SZ-7558T support?
It supports a standard NTC temperature sensor.
Q2: Is it suitable for cooling-only applications?
Yes, SZ-7558T is designed primarily as a cooling controller.
Q3: Can it be used in industrial chillers?
Yes, it is widely used in industrial and commercial chiller systems.
Q4: Does it have relay output?
Yes, it includes a relay output for compressor/cooling load.
Q5: Is it easy to install?
Yes, it is panel-mounted with front-access programming.