



Subzero T-77
Compact and reliable digital temperature controller ideal for refrigeration and HVAC systems.
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Product Summary:
The Subzero T-77 is a versatile and compact digital temperature controller designed for precise temperature regulation in commercial and industrial refrigeration applications.
Key Features:
Compact size and easy installation
Dual relay output (Compressor + Alarm/Defrost)
Clear digital LED display
Temperature sensor input: NTC/PTC
Configurable setpoints and parameters
Wide operating voltage range
Front panel programming with password protection
Application:
Commercial Refrigeration Units
Cold Rooms and Chillers
HVAC Systems
Freezers and Display Counters
Product Benefits:
Improves temperature control and system efficiency
Reduces energy consumption
Minimizes maintenance with alarm alerts
Suitable for a variety of refrigeration needs
FAQs:
Q: Is the Subzero T-77 compatible with both NTC and PTC sensors?
A: Yes, it supports both NTC and PTC sensor types for greater flexibility.
Q: Can the T-77 controller be used for defrost control?
A: Yes, one of its relay outputs can be configured for defrost or alarm functionality.
Q: Is it easy to program and install the Subzero T-77?
A: Absolutely. It features a user-friendly interface with front panel programming and password protection.
Temperature Indicator
- Display:7 Segment LED Display, 3*50.8mm (2")
- Power supply:230Vac Standard
- Probe Input:NTC, RH Sensor (SZ-HS-100/SZ-HS-220/4-20mA) Pressure Sensor (4-20mA)
- Temperature Range:-50°C to +50°C
- Temperature resolution:1 C
- Size:127*79MM
- Mounting Type:Panel Mount
- Application:Cold room, General Application




